CN204646817U - A kind of accumulator pressurizing device - Google Patents
A kind of accumulator pressurizing device Download PDFInfo
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- CN204646817U CN204646817U CN201520306472.XU CN201520306472U CN204646817U CN 204646817 U CN204646817 U CN 204646817U CN 201520306472 U CN201520306472 U CN 201520306472U CN 204646817 U CN204646817 U CN 204646817U
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- accumulator
- pressurized cylinder
- nitrogen bottle
- nitrogen
- pressure
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Abstract
The utility model belongs to hydropneumatics field, proposes a kind of accumulator pressurizing device.A kind of accumulator pressurizing device proposed and nitrogen bottle (6), accumulator (11) supporting operation; Pressurized cylinder (13) pressurized cylinder (13) of accumulator pressurizing device is connected with nitrogen bottle (6) and forms air-breathing loop, and on air-breathing loop, arrange stop valve I (7.1), breather cheek valve (5); Pressurized cylinder (13) is connected with described accumulator (11) formation exhausting loop, and on exhausting loop, arrange stop valve II (7.2), exhaust check valve (10); Described pressurized cylinder (13) as the communication means of nitrogen bottle (6) and accumulator (11), and as the pressurized part of nitrogen bottle (6); Be provided with pressure switch (12) and differential pressure switch (8), and position limit switch I (4.1), position limit switch II (4.2).The utility model meets the on-the-spot inflated with nitrogen needs of most of accumulator, improves working efficiency.
Description
Technical field
The utility model belongs to hydropneumatics field, is specifically related to a kind of accumulator pressurizing device.
Background technique
Accumulator is a kind of energy savings device in hydropneumatic system, it is in due course the energy conversion in system is that compression energy or potential energy store, when system needs, again compression energy or potential energy changed into the energy such as hydraulic pressure or air pressure and discharge, again mending supply system.When system instantaneous pressure increases, it can absorb this part energy, normal to ensure whole system pressure.
The purposes of accumulator:
1) can as emergency power source: when the dynamical element of system damages, accumulator can ensure the Security of whole system.Such as: the emergency braking system of special vehicle; The change oar of wind-driven generator and braking system.
2) by installing accumulator, the oil hydraulic pump that hydraulic power unit selects flow lower can be made, reducing the loss of electric energy, reduce cost of production.
3) can absorption system pressure pulsation, keeping system pressure stability, improves equipment use condition, increases the service life.
4) under identical energy input condition, use the system of accumulator can improve the dynamic response of system, improve throughput.
5) can the unnecessary energy of accumulating system, discharge again when needed, reduce the waste of energy, conservation of nature environment.Such as: the energy storage when car brakeing in accumulator, and discharges when vehicle restarts, and reduces the consumption of fuel.
Because accumulator has such use, be therefore widely used in industry and the fields such as Aero-Space, boats and ships, generating, power transmission and distribution, iron and steel, nonferrous metallurgy, special vehicle.
Accumulator conventional at present has diaphragm accumulator, bag type accumulator and piston accumulator, utilizes hydraulic oil to be incompressible liquid, cannot accumulate pressure energy, by relying on the compressibility of gas, storing or releasing hydraulic oil.
Because accumulator is by carrying out storage liquid force feed to the compression of nitrogen, the expansion of nitrogen self is relied on to release hydraulic oil.Nitrogen is the important medium of accumulator work thus, and preliminary filling nitrogen pressure affects the important parameter that can accumulator normally work.But, due to the reason of structure and rubber material, unavoidably there is the situation of smooth base, and it is interval at zone of reasonableness in order to ensure preliminary filling nitrogen pressure, maintainer is just needed regularly to carry out the detection of preliminary filling nitrogen pressure to accumulator, once discovery pressure lower than lower limit, must be supplemented in time in reasonable pressure range.
At present, widely used mesohigh hydraulic system pressure grade is 21MPA, and the nitrogen Preliminary pressure-filled according to accumulator is traditionally arranged to be 25 ~ 90% system pressures, therefore, is 18.9MPa for middle-and-high voltage system maximum nitrogen Preliminary pressure-filled.
About 13.5MPa pressed by general industry 40L nitrogen bottle bottle, and weight is about 55Kg.Therefore, when the nitrogen Preliminary pressure-filled of accumulator is pressed lower than nitrogen bottle bottle, pressure difference can be utilized, nitrogen bottle is communicated with the simple operations method of carrying out inflating with accumulator, this utilize pressure difference for the structure of accumulator inflated with nitrogen simple, and do not need external impetus, but along with the low charge operation that cannot complete accumulator of nitrogen bottle bottle pressure drop, nitrogen utilization ratio is not high, inefficiency.
Above-mentionedly the problem of pressure difference existing for the mode of accumulator inflated with nitrogen is utilized in order to solve, just need use to fill nitrogen dolly and drive Hydraulic Cylinder Pneumatic booster pump compressed nitrogen volume by hydraulic power station, reaching the object of low-pressure nitrogen supercharging, is accumulator inflated with nitrogen.Fill the most high output pressure of nitrogen dolly and can reach 42MPa, minimum incoming pressure 2MPa, boundary dimension: 950mmX900mmX850mm, weight is about 115Kg; Utilize the mode of filling the supercharging of nitrogen dolly, maximum pressure can reach 42MPa, and nitrogen utilization ratio is high; But owing to using hydraulic power station, boundary dimension is comparatively large, and weight is larger; Energy demand multiple conversions, complex structure, the more difficult eliminating of field failure, can not be applicable to working space little, severe geological condition particular job environment such as need manpower to copy mechanically.
Model utility content
For solving the problems of the technologies described above, the purpose of this utility model proposes a kind of accumulator pressurizing device.
The utility model adopts following technological scheme for completing above-mentioned purpose:
A kind of accumulator pressurizing device, described accumulator pressurizing device and nitrogen bottle, accumulator supporting operation; Described accumulator pressurizing device is provided with pressurized cylinder; Described pressurized cylinder is connected with described nitrogen bottle and forms air-breathing loop, and arranges stop valve I, breather cheek valve on air-breathing loop; Described pressurized cylinder is connected with described accumulator formation exhausting loop, and on exhausting loop, arrange stop valve II, exhaust check valve; Described pressurized cylinder is as the communication means of nitrogen bottle and accumulator, and when the pressure be formed in nitrogen bottle is greater than the pressure in accumulator, described nitrogen bottle be directly the structure that described accumulator is inflated by pressurized cylinder; Described pressurized cylinder is as the pressurized part of nitrogen bottle, and it is after pressurized cylinder is inflated that the breather cheek valve described in formation is opened by described nitrogen bottle, and it is the structure that accumulator is inflated that breather cheek valve closedown, exhaust check valve are opened by described pressurized cylinder; Be provided with to drive the motor that pressurized cylinder does linear reciprocating motion and the driving mechanism be connected with motor; Described driving mechanism is connected between described motor and pressurized cylinder, the rotary motion of motor is converted to the linear reciprocating motion of pressurized cylinder piston; Be provided with to detect accumulator internal pressure pressure switch and in order to detect and the differential pressure switch compared nitrogen bottle, accumulator internal pressure, described differential pressure switch, pressure switch control the start and stop of described motor by controller; Be provided with the position limit switch I, the position limit switch II that detect in order to the initial position to pressurized cylinder, final position; Described position limit switch I, position limit switch II are connected with controller respectively, in order to control the clockwise and anticlockwise of motor.
Described driving mechanism is ball lead screw drive mechanism, and the ball screw of described ball lead screw drive mechanism is connected to the output terminal of described motor by coupling; The feed screw nut coordinated with described ball screw and the piston of pressurized cylinder connect firmly.
A kind of accumulator pressurizing device that the utility model proposes, by arranging the structure of pressurized cylinder, the primary energy conversion converting electrical energy into mechanical energy realizes supercharging, and fills compared with nitrogen dolly in prior art, improves capacity usage ratio; Meet the on-the-spot inflated with nitrogen needs of most of accumulator, improve working efficiency; The driving mechanism of pressurized cylinder adopts mechanical efficiency higher ball lead screw drive mechanism the rotary motion of motor to be converted to, and straight line motion drives pressurized cylinder does straight reciprocating motion, mechanical transmission mechanism structure is simplified greatly, thus reduce integrally-built size, weight, there is physical dimension little, lightweight, portable feature; User according to circumstances can adopt saving operation mode and rapid operation mode from main separation, and saving operation mode can make full use of pressure difference and carry out pressurising operation, reduces the starting time of motor, has both extended the working life of driving mechanism, and again saved the energy; Utilize pressure switch to detect the pressure of nitrogen in accumulator, avoid overcharging, saved the nitrogen energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, motor; 2, coupling; 3, ball screw; 4.1, position limit switch I; 4.2, position limit switch II; 5, breather cheek valve; 6, nitrogen bottle; 7.1, stop valve I, 7.2, stop valve II; 8, differential pressure switch; 9, pressure gauge; 10, exhaust check valve; 11, accumulator; 12, pressure switch; 13, pressurized cylinder, 14, feed screw nut.
Embodiment
With specific embodiment, the utility model is illustrated by reference to the accompanying drawings:
As shown in Figure 1, a kind of accumulator pressurizing device, described accumulator pressurizing device and nitrogen bottle 6, accumulator 11 supporting operation; Described accumulator pressurizing device is provided with pressurized cylinder 13; Described pressurized cylinder 13 is connected with described nitrogen bottle 6 and forms air-breathing loop, and on air-breathing loop, arrange stop valve I 7.1, breather cheek valve 5; Described pressurized cylinder 13 is connected with described accumulator 11 formation exhausting loop, and on exhausting loop, arrange stop valve II 7.2, exhaust check valve 10; Described pressurized cylinder 13 is as the communication means of nitrogen bottle 6 with accumulator 11, and when the pressure be formed in nitrogen bottle is greater than the pressure in accumulator, described nitrogen bottle 6 is directly the structure that described accumulator 11 is inflated by pressurized cylinder 13; Described pressurized cylinder 13 is as the pressurized part of nitrogen bottle 6, and it is after pressurized cylinder is inflated that the breather cheek valve described in formation is opened by described nitrogen bottle, and it is the structure that accumulator is inflated that breather cheek valve closedown, exhaust check valve are opened by described pressurized cylinder; Be provided with to drive the motor that pressurized cylinder does linear reciprocating motion and the driving mechanism be connected with motor; Described driving mechanism is ball lead screw drive mechanism, and the ball screw 3 of described ball lead screw drive mechanism is connected to the output terminal of described motor 1 by coupling 2; The feed screw nut 14 coordinated with described ball screw 3 connects firmly with the piston of pressurized cylinder 13, the rotary motion of motor is converted to the linear reciprocating motion of pressurized cylinder piston; Be provided with to detect accumulator internal pressure pressure switch 12 and in order to detect and the differential pressure switch 8 compared nitrogen bottle, accumulator internal pressure, described differential pressure switch, pressure switch control the start and stop of described motor by controller; Be provided with the position limit switch I 4.1, the position limit switch II 4.2 that detect in order to the initial position to pressurized cylinder, final position; Described position limit switch I 4.1, position limit switch II 4.2 are connected with controller respectively, in order to control the clockwise and anticlockwise of motor 1.
Mode of operation of the present utility model is two kinds: saving operation mode and rapid operation mode;
The using process of saving operation mode: first differential pressure switch 8 compares nitrogen pressure in nitrogen pressure in nitrogen bottle 6 and accumulator 11, when nitrogen bottle 6 internal pressure is greater than nitrogen pressure in accumulator 11, differential pressure switch 8 sends signal to controller, and motor 1 is not worked; Now, the pressure difference between nitrogen bottle 6 and accumulator 11 is relied on to inflate; When nitrogen bottle 6 internal pressure is less than or equal to nitrogen pressure in accumulator 11, differential pressure switch 8 sender number gives controller, sending signal by controller makes motor 1 start working, and motor 1 reverses, and drives ball screw 3 to rotate, convert rotational motion is straight line motion by feed screw nut 14, the piston dragging pressurized cylinder 13 retreats, and booster cavity volume is increased, and produces negative relative in chamber, nitrogen bottle nitrogen, by high-pressure rubber pipe, breather cheek valve 5, enters pressurized cylinder and completes breathing process; High pressure nitrogen meanwhile in accumulator 11 closes exhaust check valve 10, prevent the high pressure nitrogen in accumulator 11 from again entering pressurized cylinder 13, when position limit switch I detects that pressurized cylinder arrives initial position, motor 2 stops reversion, start to rotate forward, ball screw 3 is driven to rotate, convert rotational motion is straight line motion by feed screw nut 14, promote the piston-advance of pressurized cylinder, due to booster cavity smaller volume, in chamber, nitrogen is compressed supercharging, supercharging nitrogen by exhaust check valve 10, high-pressure rubber pipe, fill nitrogen tool-joint, enter accumulator 11 and complete exhaust process; High pressure nitrogen meanwhile in booster cavity closes breather cheek valve 5, prevents the high pressure nitrogen after supercharging from again entering nitrogen bottle 6; When position limit switch II detects that pressurized cylinder arrives final position, motor 2 stops rotating forward, and starts reversion, until, when pressure switch detects that the pressure in accumulator 11 reaches setting value, send signal to controller, motor is quit work.
Rapid operation mode: motor on-line operation, drives pressurized cylinder back and forth to run, completes breathing process and exhaust process, and the breathing process of pressurized cylinder and exhaust process are with the breathing process of pressurized cylinder in saving operation mode and exhaust process process; Detected the position signal of pressurized cylinder by position limit switch I, position limit switch II, control motor positive and inverse; When pressure switch detects that accumulator nitrogen pressure reaches setting value, sender controls motor and quits work.
Claims (2)
1. an accumulator pressurizing device, described accumulator pressurizing device and nitrogen bottle (6) and accumulator (11) supporting operation; It is characterized in that: described accumulator pressurizing device is provided with pressurized cylinder (13); Described pressurized cylinder (13) is connected with described nitrogen bottle (6) and forms air-breathing loop, and on air-breathing loop, arrange stop valve I (7.1), breather cheek valve (5); Described pressurized cylinder (13) is connected with described accumulator (11) formation exhausting loop, and on exhausting loop, arrange stop valve II (7.2), exhaust check valve (10); Described pressurized cylinder (13) is as the communication means of nitrogen bottle (6) with accumulator (11), when the pressure be formed in nitrogen bottle is greater than the pressure in accumulator, the structure that described nitrogen bottle (6) is directly inflated for described accumulator (11) by pressurized cylinder (13); Described pressurized cylinder (13) is as the pressurized part of nitrogen bottle (6), it is after pressurized cylinder is inflated that breather cheek valve described in formation is opened by described nitrogen bottle, and it is the structure that accumulator is inflated that breather cheek valve closedown, exhaust check valve are opened by described pressurized cylinder; Be provided with to drive the motor that pressurized cylinder does linear reciprocating motion and the driving mechanism be connected with motor; Described driving mechanism is connected between described motor and pressurized cylinder, the rotary motion of motor is converted to the linear reciprocating motion of pressurized cylinder piston; Be provided with to detect accumulator internal pressure pressure switch (12) and in order to detect and the differential pressure switch (8) compared nitrogen bottle, accumulator internal pressure, described differential pressure switch, pressure switch control the start and stop of described motor by controller; Be provided with the position limit switch I (4.1), the position limit switch II (4.2) that detect in order to the initial position to pressurized cylinder, final position; Described position limit switch I (4.1), position limit switch II (4.2) are connected with controller respectively.
2. a kind of accumulator pressurizing device according to claim 1, it is characterized in that: described driving mechanism is ball lead screw drive mechanism, the ball screw (3) of described ball lead screw drive mechanism is connected to the output terminal of described motor (1) by coupling (2); The feed screw nut (14) coordinated with described ball screw (3) connects firmly with the piston of pressurized cylinder (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520306472.XU CN204646817U (en) | 2015-05-13 | 2015-05-13 | A kind of accumulator pressurizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520306472.XU CN204646817U (en) | 2015-05-13 | 2015-05-13 | A kind of accumulator pressurizing device |
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| CN204646817U true CN204646817U (en) | 2015-09-16 |
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| CN201520306472.XU Expired - Fee Related CN204646817U (en) | 2015-05-13 | 2015-05-13 | A kind of accumulator pressurizing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674047A (en) * | 2016-03-02 | 2016-06-15 | 王海涛 | Intelligent nitrogen inflating and supplementing device and nitrogen inflating and supplementing method |
| CN108506724A (en) * | 2018-03-07 | 2018-09-07 | 薛金磊 | Utilize the nitrogen energy storage system and its nitrogen fill method of hydraulic pressure inflation |
| 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 |
| 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 |
| 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 |
-
2015
- 2015-05-13 CN CN201520306472.XU patent/CN204646817U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674047A (en) * | 2016-03-02 | 2016-06-15 | 王海涛 | Intelligent nitrogen inflating and supplementing device and nitrogen inflating and supplementing method |
| CN105674047B (en) * | 2016-03-02 | 2018-05-18 | 王海涛 | A kind of intelligence nitrogen inflation making-up air device fills compensating method with nitrogen |
| CN108506724A (en) * | 2018-03-07 | 2018-09-07 | 薛金磊 | Utilize the nitrogen energy storage system and its nitrogen fill method of hydraulic pressure inflation |
| 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 |
| 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 |
| 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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| Date | Code | Title | Description |
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| 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: 20150916 Termination date: 20170513 |
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| CF01 | Termination of patent right due to non-payment of annual fee |