CN202056124U - Leather bag type nitrogen filling device of accumulator - Google Patents
Leather bag type nitrogen filling device of accumulator Download PDFInfo
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- CN202056124U CN202056124U CN2011201357624U CN201120135762U CN202056124U CN 202056124 U CN202056124 U CN 202056124U CN 2011201357624 U CN2011201357624 U CN 2011201357624U CN 201120135762 U CN201120135762 U CN 201120135762U CN 202056124 U CN202056124 U CN 202056124U
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- bag type
- nitrogen
- accumulator
- leather bag
- type accumulator
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Abstract
The utility model relates to a nitrogen filling device, and particularly to a leather bag type nitrogen filling device of an accumulator. The utility model mainly settles the following technical problems in a nitrogen filling trolley: high cost and requirement for professional knowledge in operation. A technical solution of the leather bag type nitrogen filling device is characterized in that: the leather bag type nitrogen filling device of the accumulator comprises a nitrogen cylinder, a reference supplementing leather bag type accumulator and a leather bag type accumulator to be filled, which are successively communicated through flexible pipes; the nitrogen cylinder and the reference supplementing leather bag type accumulator and a communication flexible pipe between the two leather bag type accumulators are respectively provided with a check valve; the two check valves are respectively provided with a three-way nitrogen filling valve A and a three-way nitrogen filling valve B fixedly; after the pipes which are introduced out from the bottoms of the reference supplementing leather bag type accumulator and the leather bag type accumulator to be filled are connected parallelly, one pipe is introduced for communicating with a hydraulic pump; and after the pipes which are respectively introduced out from the introducing-out pipes, a branch pipe is introduced out for communicating with the hydraulic pump. Each introducing-out pipe is provided with an oil inlet ball valve, and the introducing-out branch pipe is provided with an unloading valve. The leather bag type nitrogen filling device of the accumulator is suitable for the nitrogen filling operation of various pressure leather bag type accumulators of the hydraulic system.
Description
Technical field
The utility model relates to a kind of nitrogen charging device, particularly a kind of bag type accumulator nitrogen charging device.Be suitable for all kinds of pressure bag type accumulators of hydraulic system and fill the nitrogen operation.
Background technique
Use in the hydraulic system of constant pressure variable displacement pump in many needs, volume is little, in light weight, inertia is little because bag type accumulator has, be quick on the draw and cushion advantages such as vibration absorption ability is strong, uses the most general at present at home.Along with the growth of service time, accumulator inevitably can lose the nitrogen of part, causes the accumulator nitrogen pressure to reduce, thereby can not reach or satisfy the due function of bag type accumulator in hydraulic system; Need in time accumulator to be replenished nitrogen, pressure that reach system required for the stable operation that guarantees hydraulic system this moment.General to the hydraulic system below the 14Mpa, because the required nitrogen pressure of accumulator is relatively low, mostly adopt nitrogen bottle and bag type accumulator that the method for filling is filled the nitrogen operation; But the progressively reduction of nitrogen pressure in nitrogen bottle when progressively raising along with nitrogen pressure in the accumulator, reach balance until both pressure, just can not in accumulator, replenish again, so the nitrogen utilization ratio of nitrogen bottle is very low, cause waste, need to waste a large amount of manpowers simultaneously; And system works pressure is surpassed hydraulic system more than the 14MPa, can not reach the required nitrogen pressure requirement of accumulator owing to be subjected to the pressure limit of nitrogen bottle itself, it is unworkable that this kind method is filled nitrogen, prior art can only adopt fills the nitrogen dolly and pours nitrogen to bag type accumulator, fill the nitrogen force value and replenish automatically with the value of setting up an office of pressure relay, comparatively fast safe; But it is higher to be limited to himself price, and operator must possess certain electric specialty knowledge frequently operation.Chinese patent 03229074.8 discloses a kind of " filling the nitrogen dolly ", description be to be with the nitrogen supercharging pump-unit on the dolly.
Summary of the invention
The purpose of this utility model provides a kind ofly fills the device that the nitrogen dolly also can fill nitrogen to all kinds of pressure bag type accumulators of hydraulic system without the great number price, mainly solves to adopt to fill the nitrogen dolly and fill the cost height that nitrogen exists, the technical problem of action need professional knowledge.Use the utility model can make bag type accumulator since the nitrogen pressure deficiency when existing the ability of absorbing buffering not reach normal usage requirement, can finish fast in the clock time at 30 minutes the accumulator leather bag is filled the nitrogen operation.
The technical solution of the utility model is: a kind of bag type accumulator nitrogen charging device, comprise a nitrogen bottle, a benchmark replenishes bag type accumulator and a bag type accumulator to be filled, the three is communicated with successively by flexible pipe, be respectively arranged with one-way valve on the connection flexible pipe of the additional bag type accumulator of nitrogen bottle and benchmark and two bag type accumulators, on two one-way valves, be fixed with threeway nitrogen fill valve A and threeway nitrogen fill valve B respectively, benchmark replenishes bag type accumulator and waits to fill the bag type accumulator bottom and draw and draw a pipeline again after the pipeline parallel connection and lead to oil hydraulic pump, draws branch road again after drawing the branch road parallel connection respectively again on the pipeline and leads to oil hydraulic pump drawing.Be provided with fuel inlet ball check valve on the pipeline drawing, draw branch road and be provided with unloading valve.
Utilize the slow boost in pressure of oil hydraulic pump to form the compression that benchmark is replenished the accumulator leather bag, cause its volume pressure to change treating to fill bag type accumulator and implement to fill the nitrogen operation.
The utility model beneficial effect: utilize human body alveolar working principle to utilize adjust system to carry oil hydraulic pump pressure, realized not filling the nitrogen dolly and still can fill nitrogen the high pressure bag type accumulator, make the volume of accumulator leather bag compress by the incoming pressure variation, cause its volume and internal pressure to change, thereby reach the purpose that charges into nitrogen to the high nitrogen pressure accumulator of needs.General maximum needs can be finished and fill the nitrogen operation in 30 minutes.Owing to fill nitrogen time weak point, not only guaranteed to have guaranteed hydraulic system stability simultaneously as of the requirement of hydraulic pressure auxiliary element to the absorbing buffering of hydraulic system, realized automatic benefit nitrogen, saved the dolly spare part cost of wholesale simultaneously.
Description of drawings
Fig. 1 is the utility model structural representation
Among the figure: 1-nitrogen bottle, 2-threeway nitrogen fill valve A, 3-threeway nitrogen fill valve B, the 4-flexible pipe, the 5-benchmark replenishes bag type accumulator, 6-bag type accumulator to be filled, the 7-one-way valve, 8-draws pipeline, and 9-draws branch road, the 10-oil hydraulic pump, 11-fuel inlet ball check valve a, 12-fuel inlet ball check valve b, 13-unloading valve a, 14-unloading valve b.
Embodiment
With reference to Fig. 1, a kind of bag type accumulator nitrogen charging device, comprise a nitrogen, 1, benchmark replenishes bag type accumulator 5 and one and waits to fill bag type accumulator 6, the three is communicated with successively by flexible pipe 4, be respectively arranged with one-way valve 7 on the connection flexible pipe of the additional bag type accumulator 5 of nitrogen bottle 1 and benchmark and two bag type accumulators, on two one-way valves, be fixed with threeway nitrogen fill valve A2 and threeway nitrogen fill valve B3 respectively, benchmark replenishes bag type accumulator 5 and waits to fill bag type accumulator 6 bottoms and draw and draw a pipeline again after pipeline 8 parallel connections and lead to oil hydraulic pump 10, draws branch road again after drawing branch road 9 parallel connections more respectively on the pipeline 8 and leads to oil hydraulic pump 10 drawing.Be provided with fuel inlet ball check valve a11 and fuel inlet ball check valve b12 on the pipeline drawing, draw branch road and be provided with unloading valve a13 and unloading valve b14.
When filling nitrogen, at first utilize threeway nitrogen fill valve B 3 by nitrogen bottle 1 to waiting that filling bag type accumulator 6 charges into nitrogen, before inflation, close fuel inlet ball check valve a11 and fuel inlet ball check valve b12 earlier, open unloading valve a13 and unloading valve b14 again and discharge fluid in the accumulator, until there not being the fluid sound explanation off-load of flowing to finish.Back down the spool of leather bag breather check valve, open fuel inlet ball check valve a11 and unloading valve b14, and close unloading valve a13 and fuel inlet ball check valve b12, open oil hydraulic pump 10 and slowly boost with the speed of 10Kg/10s, nitrogen in the additional bag type accumulator 5 of benchmark can be pressed into and wait to fill in the bag type accumulator 6, when the air pressure of the additional bag type accumulator 5 of benchmark does not significantly raise with the rising of oil pressure, show that the nitrogen that benchmark replenishes in the bag type accumulator 5 charges, oil pressure is lowered preparation filling next time.Because this moment, nitrogen bottle 1 internal pressure was higher than the pressure that benchmark replenishes bag type accumulator 5, nitrogen is easy to enter into benchmark by one-way valve 7 and replenishes bag type accumulator 5 in the nitrogen bottle when oil pressure lowers, observe two pressure gauges until both pressure balances, slowly boost to system this moment, can not recoil and enter into nitrogen bottle 1 and can only enter into by one-way valve 7 and wait to fill bag type accumulator 6 because the existence of one-way valve 7 benchmark this moment replenishes in the bag type accumulator 5 nitrogen.Continuation is inflated in benchmark replenishes bag type accumulator 5 automatically by nitrogen bottle 1, repeats above-mentioned steps then, till waiting to fill air pressure in the bag type accumulator 6 and meeting the requirements.
Claims (1)
1. bag type accumulator nitrogen charging device, comprise a nitrogen bottle and a bag type accumulator to be filled, it is characterized in that also comprising that a benchmark replenishes bag type accumulator, nitrogen bottle, benchmark replenishes bag type accumulator and waits to fill the bag type accumulator three and is communicated with successively by flexible pipe, be respectively arranged with one-way valve on the connection flexible pipe of the additional bag type accumulator of nitrogen bottle and benchmark and two bag type accumulators, on two one-way valves, be fixed with threeway nitrogen fill valve A and threeway nitrogen fill valve B respectively, benchmark replenishes bag type accumulator and waits to fill the bag type accumulator bottom and draw and draw a pipeline again after the pipeline parallel connection and lead to oil hydraulic pump, draw branch road again after drawing the branch road parallel connection respectively again on the pipeline and lead to oil hydraulic pump drawing, be provided with fuel inlet ball check valve on the pipeline drawing, draw branch road and be provided with unloading valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201357624U CN202056124U (en) | 2011-04-29 | 2011-04-29 | Leather bag type nitrogen filling device of accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201357624U CN202056124U (en) | 2011-04-29 | 2011-04-29 | Leather bag type nitrogen filling device of accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056124U true CN202056124U (en) | 2011-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201357624U Expired - Fee Related CN202056124U (en) | 2011-04-29 | 2011-04-29 | Leather bag type nitrogen filling device of accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056124U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679004A (en) * | 2018-07-30 | 2018-10-19 | 本钢板材股份有限公司 | A kind of hydraulic system energy accumulator station and the method using energy accumulator station inflated with nitrogen |
| CN111379749A (en) * | 2018-12-28 | 2020-07-07 | 上海梅山钢铁股份有限公司 | Method suitable for stable operation of leather bag type energy accumulator |
| CN111486340A (en) * | 2020-04-07 | 2020-08-04 | 宁波铝台精机有限公司 | Nitrogen charging device and operation method thereof |
-
2011
- 2011-04-29 CN CN2011201357624U patent/CN202056124U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679004A (en) * | 2018-07-30 | 2018-10-19 | 本钢板材股份有限公司 | A kind of hydraulic system energy accumulator station and the method using energy accumulator station inflated with nitrogen |
| CN111379749A (en) * | 2018-12-28 | 2020-07-07 | 上海梅山钢铁股份有限公司 | Method suitable for stable operation of leather bag type energy accumulator |
| CN111486340A (en) * | 2020-04-07 | 2020-08-04 | 宁波铝台精机有限公司 | Nitrogen charging device and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20190429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |