CN104110409A - Inflation device for hydraulic accumulator - Google Patents

Inflation device for hydraulic accumulator Download PDF

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Publication number
CN104110409A
CN104110409A CN201410349462.4A CN201410349462A CN104110409A CN 104110409 A CN104110409 A CN 104110409A CN 201410349462 A CN201410349462 A CN 201410349462A CN 104110409 A CN104110409 A CN 104110409A
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CN
China
Prior art keywords
accumulator
chamber
oil
pressure
outlet pipe
Prior art date
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Pending
Application number
CN201410349462.4A
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Chinese (zh)
Inventor
龙西新
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ZHUZHOU WENJIA INDUSTRIAL Co Ltd
Original Assignee
ZHUZHOU WENJIA INDUSTRIAL Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by ZHUZHOU WENJIA INDUSTRIAL Co Ltd filed Critical ZHUZHOU WENJIA INDUSTRIAL Co Ltd
Priority to CN201410349462.4A priority Critical patent/CN104110409A/en
Publication of CN104110409A publication Critical patent/CN104110409A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an inflation device for a hydraulic accumulator. The inflation device for the hydraulic accumulator comprises a partition plate and an inflation pot with an air tight inner cavity, the partition board is slidingly arranged inside the inner cavity of the inflation pot and divides the inner cavity into an air cavity and an oil cavity which are arranged in a sliding direction, the air cavity is connected with an air inlet pipe for being connected with a pressure air source and an air outlet pipe for inflating the accumulator, and the oil chamber is connected with an oil inlet pipe for being connected with a pressure oil source; the air inlet pipe is provided with a first one-way valve for allowing air to be led into the air cavity only, and the air outlet pipe is provided with a second one-way valve for allowing the gas to be led into the accumulator only. The inflation device for the hydraulic accumulator has the advantages of being simple in structure, low in costs, convenient and fast in inflation and high in system compatibility and the like.

Description

For the inflator of hydraulic accumulator
Technical field
The present invention relates to hydraulics field, be specifically related to a kind of inflator for hydraulic accumulator.
Background technique
Hydraulic transmission is using liquid as working medium, utilizes the pressure energy of liquid to carry out transferring power.A complete hydraulic system is made up of five parts, i.e. energy source device, actuating device, regulating and controlling device, auxiliary device, liquid medium.Hydraulic pressure is because its transferring power is large, is easy to transmit and the feature such as configuration, extensive in industry, civilian sector application.
Along with the development of technology, can realize diversified working condition by hydraulic driving, need the Hydraulically Operated Equipment of large flow, high pressure also more and more, for example, the fields such as forging, punching press, metallurgical steel rolling.Therefore also occurred can accumulation of energy hydraulic station, it is that the high pressure oil of oil pump output is stored in energy storage tank, can once supply with enough the high pressure oil of flow greatly by energy storage tank.The working principle of energy storage tank is that the dividing plate that piston type coordinates is set in the cavity of a sealing, cavity is separated into two chambers by dividing plate, in a chamber, inject pressurized gas therein, another chamber is for pressure store oil, when work, make pressure oil be supplied to system by the effect of pressurized gas.
Because energy storage tank can not seal completely, also inevitably can there is leakage in pressurized gas, causes air pressure to reduce, and then affect the energy supply of energy storage tank, and this just needs irregular to energy storage tank make-up gas.Existing way is that nitrogen bottle is directly connected in the gas chamber of gas holder, relies on the pressure of nitrogen bottle to inflate to gas holder, and this kind of mode can only meet the lower situation of gas pressure requirement; In the time requiring in energy storage tank that gas pressure is higher, need to adopt in addition complicated, expensive charger to improve inflation pressure, there is the problems such as cost is high, inflation is inconvenient.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that prior art exists, provide a kind of simple in structure, with low cost, inflation fast and easy, with the high inflator for hydraulic accumulator of system compatibility.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of inflator for hydraulic accumulator, comprise dividing plate and there is the aeration tank of airtight inner chamber, described dividing plate is slidedly arranged on and in the inner chamber of described aeration tank and by described inner chamber, is separated into gas chamber and the oil-in chamber of arranging along glide direction, described gas chamber is connected with suction tude for being connected with pressure gas source and for the steam outlet pipe to accumulator inflation, described oil-in chamber be connected with for the oil inlet pipe of pressure oil-source; Described suction tude is provided with the first one-way valve that makes gas only pass into gas chamber, and described steam outlet pipe is provided with the second one-way valve that makes gas only pass into accumulator.
As a further improvement on the present invention:
Described accumulator is also connected with outlet pipe, is also provided with the first control valve that makes gas chamber and external environment condition select a connection outlet pipe on described outlet pipe, and described outlet pipe is provided with the first on-off valve.
The outlet end of described outlet pipe is connected on the steam outlet pipe between the second one-way valve and gas chamber.
Described the first control valve is solenoid electric valve.
Described oil inlet pipe is provided with and makes pressure oil-source and fuel tank select the second control valve of a connection oil-in chamber.
Described the second control valve is solenoid electric valve.
Suction tude between described the first one-way valve and pressure gas source is provided with the second on-off valve.
Described accumulator is connected with safety overflow valve.
Described accumulator is connected with pressure gauge.
Described pressure oil-source is oil pump or hydraulic station, and described pressure gas source is nitrogen bottle.
Compared with prior art, the invention has the advantages that: the present invention is for the inflator of hydraulic accumulator, the inner chamber of aeration tank is separated into gas chamber and oil-in chamber by the dividing plate arranging that slides in aeration tank, make the size of gas chamber and oil-in chamber with these those long variations that disappear of slip of slide plate, when work, pass into pressurized gas (for example nitrogen) by the first one-way valve to gas chamber, in oil-in chamber, pass into pressure oil again, pressurized gas in gas chamber further can be increased, and be passed in accumulator by the second one-way valve, and then realize and inflating to accumulator.Pressure gas source can directly adopt nitrogen bottle to be connected to suction tude and supply with, pressure oil can directly be supplied with by the oil pump in hydraulic system, it can reach to the highest inflation pressure of accumulator the charge oil pressure that oil pump is the highest, by the high pressure liquid of oil pump can be become to high pressure air energy, can meet the high-pressure aerated requirement of accumulator, well beyond the pressure that can inflate of common charger, this inflator compared with existing charger, have simple in structure, with low cost, inflation fast and easy, with the compatible advantages of higher of hydraulic system.
Brief description of the drawings
Fig. 1 is the structure principle chart of the present invention for the inflator of hydraulic accumulator.
Marginal data:
1, aeration tank; 11, gas chamber; 111, suction tude; 112, steam outlet pipe; 12, oil-in chamber; 121, oil inlet pipe; 2, dividing plate; 3, accumulator; 31, outlet pipe; 401, the first one-way valve; 402, the second one-way valve; 403, the first on-off valve; 404, the first control valve; 405, the second control valve; 406, the second on-off valve; 407, safety overflow valve; 5, pressure gas source; 6, pressure gauge; 7, pressure oil-source.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, the present invention is for the inflator of hydraulic accumulator, comprise dividing plate 2 and aeration tank 1, aeration tank 1 has an airtight inner chamber, and dividing plate 2 is slidedly arranged in the inner chamber of aeration tank 1, the inner chamber of aeration tank 1 is separated into gas chamber 11 and the oil-in chamber 12 of arranging along glide direction, along with the slip of dividing plate 2, gas chamber 11 and oil-in chamber 12 increase accordingly or reduce, and the size of gas chamber 11 and oil-in chamber 12 is these those long variations that disappear, both volumes and constant.Gas chamber 11 is connected with suction tude 111 and steam outlet pipe 112, suction tude 111 and pressure gas source 5(nitrogen bottle) be connected, steam outlet pipe 112 is communicated with the gas chamber 11 of aeration tank 1, oil-in chamber 12 is connected with oil inlet pipe 121, oil inlet pipe 121 is communicated with pressure oil-source 7, and pressure oil-source 7 can adopt oil pump or hydraulic station; Suction tude 111 is provided with the first one-way valve 401 that makes gas only pass into gas chamber 11, and steam outlet pipe 112 is provided with the second one-way valve 402 that makes gas only pass into accumulator 3.
Above-mentioned oil inlet pipe 121 is provided with the second control valve 405, the second control valve 405 is solenoid electric valve, it realizes two working staties by energising and power-off, a working state is that oil inlet pipe 121 is communicated with pressure oil-source 7, make oil pump to oil-in chamber 12 fuel feeding, another working state is that oil inlet pipe 121 is communicated with fuel tank, and the pressure oil in oil-in chamber 12 is discharged in fuel tank.
Suction tude 111 between above-mentioned the first one-way valve 401 and pressure gas source 5 is provided with the second on-off valve 406, the second on-off valves 406 can make suction tude 111 be communicated with or disconnect, and then whether control gives gas chamber's 11 air feed.
While inflating to accumulator 3, suction tude 111 is connected on pressure gas source 5, controlling the second control valve 405 makes oil-in chamber 12 be communicated with fuel tank, open the second on-off valve 406 nitrogen is entered in gas chamber 11 by the first one-way valve 401, nitrogen orders about dividing plate 2 slips makes the volume of oil-in chamber 12 become minimum; Controlling the second control valve 405 makes oil-in chamber 12 be communicated with oil pump, pressure oil is passed into oil-in chamber 12 by operation of oil pump, the pressure of the pressure oil pumping due to oil pump is greater than the pressure of nitrogen bottle, also be greater than the pressure of gas chamber's 11 interior nitrogen, it is by the nitrogen supercharging in gas chamber 11, because making the nitrogen in gas chamber 11, the effect of the first one-way valve 401 can not turn back to nitrogen bottle, the nitrogen of supercharging can be opened the second one-way valve 402 and by steam outlet pipe 112, accumulator 3 be inflated, until make the volume of gas chamber 11 become minimum, complete once inflation.If an aeration quantity can not meet the requirement of accumulator 3, controlling the second control valve 405 makes oil-in chamber 12 be communicated with fuel tank again, because making the nitrogen in accumulator 3, the second one-way valve 402 can not turn back to gas chamber 11, nitrogen bottle is supplied with nitrogen to gas chamber 11 again by the first one-way valve 401, can carry out multi-time inflating to accumulator 3 according to above-mentioned working procedure, until meet the demands.
The present invention is for the inflator of hydraulic accumulator, its pressure gas source 5 can directly adopt nitrogen bottle to be connected to suction tude 111 and supply with, pressure oil can directly be supplied with by the oil pump in hydraulic system, can reach to accumulator 3 the highest inflation pressures the charge oil pressure that oil pump is the highest, by the high pressure liquid of oil pump can be become to high pressure air energy, can meet the high-pressure aerated requirement of accumulator 3, well beyond the pressure that can inflate of common charger, compared with existing charger, have simple in structure, with low cost, inflation fast and easy, with the compatible advantages of higher of hydraulic system.
In the present embodiment, between accumulator 3 and gas chamber 11, be also connected with outlet pipe 31, outlet pipe 31 is provided with the first on-off valve 403, on the outlet pipe 31 between the first on-off valve 403 and gas chamber 11, be also provided with the first control valve 404 simultaneously, the first control valve 404 is solenoid electric valve, it has two working staties, a working state is that outlet pipe 31 is communicated with gas chamber 11, high pressure nitrogen in accumulator 3 is discharged in gas chamber 11, another working state is that outlet pipe 31 is communicated with external environment condition, high pressure nitrogen in accumulator 3 is discharged in external environment condition.
By outlet pipe 31 is set, and on outlet pipe 31, be provided with the first on-off valve 403, in the time that needs reduce pressure to accumulator 3, can close the second on-off valve 406, controlling the second control valve 405 makes oil-in chamber 12 be communicated with fuel tank, open again the first on-off valve 403, by controlling the first control valve 404, outlet pipe 31 is communicated with gas chamber 11, high pressure nitrogen in accumulator 3 is discharged in gas chamber 11 and is stored, can avoid the waste of nitrogen, reduce production costs, aeration tank 1 possesses the function of inflation and gas storage simultaneously, the structure of whole hydraulic system is simpler, cost is also lower.Also can control the first control valve 404 outlet pipe 31 is communicated with external environment condition, by nitrogen discharge in external environment condition.
The outlet end of above-mentioned outlet pipe 31 is connected on the steam outlet pipe 112 between the second one-way valve 402 and gas chamber 11, thereby avoids on aeration tank 1, offering suction port in addition.Specifically, the first control valve 404 adopts two four-way electromagnetic control valves, steam outlet pipe 112 between the second one-way valve 402 and gas chamber 11 is divided into two sections, one section connects the second one-way valve 402, another section connects gas chamber 11, above-mentioned two sections of suction tude 111 are connected on the hydraulic fluid port of two connections of the first control valve 404 under normally open, and a hydraulic fluid port in the hydraulic fluid port of first control valve 404 two other connections is connected with outlet pipe 31, and another hydraulic fluid port communicates with external environment condition.Under normal circumstances, the second one-way valve 402 is communicated with gas chamber 11,31 of outlet pipes communicate with external environment condition, when the first control valve 404 electric after, the second one-way valve 402 is communicated with external environment condition, outlet pipe 31 is communicated with gas chamber 11, thereby the high pressure nitrogen in accumulator 3 can be discharged in gas chamber 11.
In the present embodiment, accumulator 3 is also connected with safety overflow valve 407, and in the time that the nitrogen pressure in accumulator 3 exceedes setting value, safety overflow valve 407 is opened nitrogen discharge in external environment condition, avoids the interior nitrogen pressure superpressure of accumulator 3, ensures safe and reliable.Accumulator 3 is also connected with pressure gauge 6, is convenient to observe the nitrogen pressure in accumulator 3, and this pressure gauge 6 is arranged on the steam outlet pipe 112 between the first one-way valve 401 and accumulator 3.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment.For those skilled in the art, also should be considered as protection scope of the present invention not departing from the improvement and the conversion that obtain under the technology of the present invention design prerequisite.

Claims (10)

1. the inflator for hydraulic accumulator, it is characterized in that: comprise dividing plate (2) and there is the aeration tank (1) of airtight inner chamber, described dividing plate (2) is slidedly arranged on and in the inner chamber of described aeration tank (1) and by described inner chamber, is separated into gas chamber (11) and the oil-in chamber (12) of arranging along glide direction, described gas chamber (11) is connected with the suction tude (111) for being connected with pressure gas source (5) and the steam outlet pipe (112) for inflating to accumulator (3), described oil-in chamber (12) be connected with for the oil inlet pipe (121) of pressure oil-source (7), described suction tude (111) is provided with the first one-way valve (401) that makes gas only pass into gas chamber (11), and described steam outlet pipe (112) is provided with the second one-way valve (402) that makes gas only pass into accumulator (3).
2. the inflator for hydraulic accumulator according to claim 1, it is characterized in that: described accumulator (3) is also connected with outlet pipe (31), on described outlet pipe (31), be also provided with the first control valve (404) that makes gas chamber (11) and external environment condition select a connection outlet pipe (31), described outlet pipe (31) is provided with the first on-off valve (403).
3. the inflator for hydraulic accumulator according to claim 2, is characterized in that: the outlet end of described outlet pipe (31) is connected on the steam outlet pipe (112) between the second one-way valve (402) and gas chamber (11).
4. the inflator for hydraulic accumulator according to claim 2, is characterized in that: described the first control valve (404) is solenoid electric valve.
5. according to the inflator for hydraulic accumulator described in any one in claim 1 to 4, it is characterized in that: described oil inlet pipe (121) is provided with and makes pressure oil-source (7) and fuel tank select second control valve (405) of a connection oil-in chamber (12).
6. the inflator for hydraulic accumulator according to claim 5, is characterized in that: described the second control valve (405) is solenoid electric valve.
7. according to the inflator for hydraulic accumulator described in any one in claim 1 to 4, it is characterized in that: the suction tude (111) between described the first one-way valve (401) and pressure gas source (5) is provided with the second on-off valve (406).
8. according to the inflator for hydraulic accumulator described in any one in claim 1 to 4, it is characterized in that: described accumulator (3) is connected with safety overflow valve (407).
9. according to the inflator for hydraulic accumulator described in any one in claim 1 to 4, it is characterized in that: described accumulator (3) is connected with pressure gauge (6).
10. according to the inflator for hydraulic accumulator described in any one in claim 1 to 4, it is characterized in that: described pressure oil-source (7) is oil pump or hydraulic station, and described pressure gas source (5) is nitrogen bottle.
CN201410349462.4A 2014-07-22 2014-07-22 Inflation device for hydraulic accumulator Pending CN104110409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410349462.4A CN104110409A (en) 2014-07-22 2014-07-22 Inflation device for hydraulic accumulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410349462.4A CN104110409A (en) 2014-07-22 2014-07-22 Inflation device for hydraulic accumulator

Publications (1)

Publication Number Publication Date
CN104110409A true CN104110409A (en) 2014-10-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105114369A (en) * 2015-08-11 2015-12-02 中国航空工业集团公司西安飞机设计研究所 Pressurizing inflation device
CN109099019A (en) * 2018-10-23 2018-12-28 北京地伟图新科技有限公司 A kind of vehicle-mounted device and method to wind power generating set accumulator nitrogen charging
CN113309743A (en) * 2021-07-30 2021-08-27 山东辛丁技术有限公司 Hydraulic accumulator inflating device based on oil field petrochemical industry and inflating method thereof

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Publication number Priority date Publication date Assignee Title
DE3744179A1 (en) * 1987-12-24 1989-07-06 Integral Hydraulik Co Mounting and filling device for a hydropneumatic piston accumulator
CN2611729Y (en) * 2003-02-27 2004-04-14 王祖林 Nitrogen filling trolley
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CN204476886U (en) * 2014-07-22 2015-07-15 株洲市文佳实业有限公司 For the inflator of hydraulic accumulator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3744179A1 (en) * 1987-12-24 1989-07-06 Integral Hydraulik Co Mounting and filling device for a hydropneumatic piston accumulator
CN2611729Y (en) * 2003-02-27 2004-04-14 王祖林 Nitrogen filling trolley
CN102954051A (en) * 2012-10-23 2013-03-06 中国重型机械研究院股份公司 Accumulator system capable of automatically regulating inflation pressure
CN204476886U (en) * 2014-07-22 2015-07-15 株洲市文佳实业有限公司 For the inflator of hydraulic accumulator

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105114369A (en) * 2015-08-11 2015-12-02 中国航空工业集团公司西安飞机设计研究所 Pressurizing inflation device
CN109099019A (en) * 2018-10-23 2018-12-28 北京地伟图新科技有限公司 A kind of vehicle-mounted device and method to wind power generating set accumulator nitrogen charging
CN113309743A (en) * 2021-07-30 2021-08-27 山东辛丁技术有限公司 Hydraulic accumulator inflating device based on oil field petrochemical industry and inflating method thereof
CN113309743B (en) * 2021-07-30 2021-10-08 山东辛丁技术有限公司 Hydraulic accumulator inflating device based on oil field petrochemical industry and inflating method thereof

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Application publication date: 20141022