CN112746993A - Two-stage bellows type pressure vessel capable of displaying volume - Google Patents
Two-stage bellows type pressure vessel capable of displaying volume Download PDFInfo
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- CN112746993A CN112746993A CN202011609173.5A CN202011609173A CN112746993A CN 112746993 A CN112746993 A CN 112746993A CN 202011609173 A CN202011609173 A CN 202011609173A CN 112746993 A CN112746993 A CN 112746993A
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- primary
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- pressure vessel
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- 238000003466 welding Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 33
- 238000002955 isolation Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 abstract description 5
- 238000011105 stabilization Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/103—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means the separating means being bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J12/00—Pressure vessels in general
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3153—Accumulator separating means having flexible separating means the flexible separating means being bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/32—Accumulator separating means having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/405—Housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/50—Monitoring, detection and testing means for accumulators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention belongs to the field of hydraulic pressure, and discloses a two-stage bellows type pressure container capable of displaying volume, which comprises an outer cylinder (1), a convex seal head (2), a concave end cover (3), a primary bellows (4), a secondary bellows (5), a primary convex cover (6), a secondary convex cover (7), a connecting seat (8), a connecting flange (9), an indicating device (10), an oil inlet and outlet (11) and an inflation valve (12). The device is suitable for the fields of pressure accumulators, pressurized oil tanks and the like which need volume compensation and pressure stabilization, has the characteristics of small volume, high volume utilization rate, large expansion amount, strong volume compensation capability and good oil supply characteristic, and has the advantages of low manufacturing cost, high material utilization rate, less welding seam amount and good reliability. Meanwhile, the invention adopts the primary and secondary corrugated pipes to shorten the measuring range of the indicating device and shorten the whole size.
Description
Technical Field
The invention belongs to the field of hydraulic pressure, and relates to a two-stage bellows type pressure container capable of displaying volume.
Background
The common pressure container adopts a metal piston to separate a liquid cavity and a gas cavity, the piston must be designed to have enough thickness for arranging a plurality of groups of sealing structures to isolate gas and liquid, and the piston has larger friction force in the motion process, slow response of oil charging and discharging, increased product weight and low volume utilization rate. In addition, the common pressure container is not provided with an indicating structure, the volume of oil in the pressure container can not be visually displayed, and the oil volume signal can not be monitored and controlled in real time.
Disclosure of Invention
The purpose of the invention is: the two-stage bellows type pressure container capable of displaying the volume is designed, is suitable for the fields of pressure accumulators, pressurized oil tanks and the like which need volume compensation and pressure stabilization, has the characteristics of small volume, high volume utilization rate, large expansion amount, small movement friction force, quick response of oil charging and discharging liquid, strong volume compensation capacity and good oil supply characteristic, and is low in manufacturing cost, high in material utilization rate, less in welding seam amount, good in reliability and convenient for real-time monitoring and control.
The technical solution of the invention is as follows: a two-stage bellows type pressure vessel capable of displaying volume comprises an outer cylinder 1, a convex seal head 2, a concave end cover 3, a primary bellows 4, a secondary bellows 5, a primary convex cover 6, a secondary convex cover 7, a connecting seat 8, a connecting flange 9, an indicating device 10, an oil inlet and outlet 11 and an inflation valve 12; the outer cylinder 1 is a cylindrical metal thin-wall cylinder; the convex seal head 2 is a hemispherical metal thin-wall part and is connected with the outer cylinder 1 in a welding mode, a hole is formed in the central axis of the convex seal head 2, and an inflation valve 12 is installed; the inflation valve 12 is used for inflation and deflation; the concave end cover 3 is of a basin-shaped structure and is connected with the outer cylinder 1 in a welding mode, a closed approximately cylindrical cavity is formed together with the convex end socket 2, an indicating shell 101 of an indicating device 10 is installed at the central axis position of the concave end cover 3, a hole is formed at the position close to the central axis, and an oil inlet and outlet 11 is installed; the oil inlet and outlet 11 is used for realizing oil inlet and outlet; one end of the primary corrugated pipe 4 is connected with the primary convex cover 6, and the other end is connected with the connecting seat 8; one end of the secondary corrugated pipe 5 is connected with the connecting flange 9, and the other end is connected with the connecting seat 8; the secondary convex cover 7 is connected with the connecting seat 8, the liquid cavity is divided into a primary liquid cavity and a secondary liquid cavity by the secondary convex cover 7, an oil through hole is formed in the secondary convex cover 7, oil can be conveniently communicated between the two cavities, a measuring rod 102 of the indicating device 10 is installed on the central axis position of the secondary convex cover 7, the stroke of the primary convex cover is deduced by measuring the stroke of the secondary convex cover by utilizing the elastic element characteristic of the corrugated pipe, the length of the indicating device 10 is effectively shortened, and the volume of the whole device is further shortened; the primary corrugated pipe 4, the secondary corrugated pipe 5, the primary convex cover 6, the secondary convex cover 7, the connecting seat 8 and the connecting flange 9 jointly form an isolation assembly, the isolation assembly is a closed metal corrugated pipe accommodating cavity, one end of the isolation assembly is welded with the concave end cover 3 through the connecting flange 9, and the other end of the isolation assembly divides the pressure container into two closed cavities, namely a gas cavity and a liquid cavity, through the primary convex cover 6. By comprehensively designing the shapes of the primary convex cover 6, the secondary convex cover 7 and the concave end cover 3, the oil can be discharged as far as possible when the oil is discharged by a product, the volume of the residual oil is reduced, and the volume utilization rate of the product is further improved. In the working process, the gas cavity is filled with gas with certain pressure, the balance between the liquid pressure and the gas pressure is realized by utilizing the volume change generated when the elastic element of the corrugated pipe stretches, and further the function of storing liquid is realized, and the elastic element of the isolation assembly does not need to be contacted with the outer barrel 1 in the stretching process. In contrast, conventional piston-type pressure vessels require sealing by the piston contacting the outer cylinder. Compared with the traditional pressure container, the pressure container has smaller friction force, can better respond to the change of oil pressure, and has strong volume compensation capability and good oil supply characteristic.
The outer part of the outer cylinder 1 is provided with an annular reinforcing rib, so that the pressure bearing capacity of the pressure container is improved.
The inflation valve 12 is welded to the end by a cap after the inflation is completed, ensuring permanent sealing of the inflation valve.
The convex end socket 2 can be in a conical shape, an oval shape, a butterfly shape or a spherical crown shape.
The indicating device 10 is a mechanical indicating and/or an electrical indicating.
The gas cavity is filled with gas with certain pressure at one side to realize the balance of liquid pressure and gas pressure, and a spring can be arranged at one side of the gas cavity to realize the balance of the liquid pressure and the spring force.
Has the advantages that: a two-stage bellows type pressure container capable of displaying volume is suitable for the fields of pressure accumulators, pressurized oil tanks and the like which need volume compensation and pressure stabilization.
The pressure container is divided into a gas cavity and a liquid cavity by the corrugated pipe, gas with certain pressure is filled in the gas cavity initially, and the balance between the liquid pressure and the gas pressure is realized by the volume change generated when the elastic element stretches, so that the function of storing liquid is realized.
Meanwhile, the invention adopts the primary and secondary corrugated pipes to shorten the measuring range of the indicating device and shorten the whole size.
The device is suitable for the fields of pressure accumulators, pressurized oil tanks and the like which need volume compensation and pressure stabilization, has the characteristics of small volume, high volume utilization rate, large expansion amount, small movement friction force, slow response of oil charging and discharging, strong volume compensation capability and good oil supply characteristic, and is low in manufacturing cost, high in material utilization rate, small in welding seam amount, good in reliability and convenient for real-time monitoring and control.
Drawings
Fig. 1 is a cross-sectional view of a two-stage bellows type pressure vessel capable of displaying volume according to the present invention, where 1 is an outer cylinder, 2 is a male end closure, 3 is a female end closure, 4 is a primary bellows, 5 is a secondary bellows, 6 is a primary male closure, 7 is a secondary male closure, 8 is a connection seat, 9 is a connection flange, 10 is an indicating device, 11 is an oil inlet and outlet, 12 is an inflation valve, 101 is an indicating housing of the indicating device 10, and 102 is a measuring rod of the indicating device 10;
Detailed Description
The invention is described in further detail below with reference to the drawings.
A two-stage bellows type pressure vessel capable of displaying volume is disclosed, as shown in figure 1, and comprises an outer cylinder 1, a convex seal head 2, a concave end cover 3, a primary bellows 4, a secondary bellows 5, a primary convex cover 6, a secondary convex cover 7, a connecting seat 8, a connecting flange 9, an indicating device 10, an oil inlet and outlet 11 and an inflation valve 12;
the outer cylinder 1 is a cylindrical metal thin-wall cylinder; the convex seal head 2 is a hemispherical metal thin-wall part and is connected with the outer cylinder 1 in a welding mode, a hole is formed in the central axis of the convex seal head 2, and an inflation valve 7 is installed;
the inflation valve 7 is used for inflation and deflation;
the concave end cover 3 is of a basin-shaped structure and is connected with the outer cylinder 1 in a welding mode, a closed approximately cylindrical cavity is formed together with the convex end socket 2, an indicating shell 101 of an indicating device 10 is installed at the central axis position of the concave end cover 3, a hole is formed at the position close to the central axis, and an oil inlet and outlet 11 is installed;
the oil inlet and outlet 11 is used for realizing oil inlet and outlet; one end of the primary corrugated pipe 4 is connected with the primary convex cover 6, and the other end is connected with the connecting seat 8;
one end of the secondary corrugated pipe 5 is connected with the connecting flange 9, and the other end is connected with the connecting seat 8; the secondary convex cover 7 is connected with the connecting seat 8, the liquid cavity is divided into a primary liquid cavity and a secondary liquid cavity by the secondary convex cover 7, an oil through hole is formed in the secondary convex cover 7, oil can be conveniently conducted between the primary liquid cavity and the secondary liquid cavity, a measuring rod 102 of the indicating device 10 is installed in the central axis position of the secondary convex cover 7, the stroke of the primary convex cover is deduced by measuring the stroke of the secondary convex cover by utilizing the elastic element characteristic of the corrugated pipe, the length of the indicating device 10 is effectively shortened, and the size of the whole device is further shortened;
the primary corrugated pipe 4, the secondary corrugated pipe 5, the primary convex cover 6, the secondary convex cover 7, the connecting seat 8 and the connecting flange 9 jointly form an isolation assembly, the isolation assembly is a closed metal corrugated pipe accommodating cavity, one end of the isolation assembly is welded with the concave end cover 3 through the connecting flange 9, and the other end of the isolation assembly divides the pressure container into two closed cavities, namely a gas cavity and a liquid cavity, through the primary convex cover 6;
specifically, the pressure container is divided into a gas cavity and a liquid cavity by using a corrugated pipe, the gas cavity is filled with gas with certain pressure initially, and the balance between the liquid pressure and the gas pressure is realized by using the volume change generated when an elastic element stretches, so that the function of storing liquid is realized;
meanwhile, the primary corrugated pipe and the secondary corrugated pipe are adopted to shorten the measurement range of the indicating device and shorten the whole size;
in the working process, the gas cavity is filled with gas with certain pressure, and the balance between the liquid pressure and the gas pressure is realized by utilizing the volume change generated when the elastic element of the corrugated pipe stretches, so that the function of storing liquid is realized;
because the elastic element of the isolation component is provided with a certain gap with the outer cylinder 1 in the expansion process, the friction force is very small, the change of the oil pressure can be responded well, the volume compensation capability is strong, and the oil supply characteristic is good;
the invention is suitable for the fields of pressure accumulators, pressurized oil tanks and the like which need volume compensation and pressure stabilization, has the characteristics of small volume, high volume utilization rate, large expansion amount, strong volume compensation capability and good oil supply characteristic, and has the advantages of low manufacturing cost, high material utilization rate, less welding seam amount and good reliability.
The outer part of the outer cylinder 1 is provided with an annular reinforcing rib, so that the pressure bearing capacity of the pressure container is improved.
The inflation valve 12 is welded to be dead by a cap after debugging is completed, so that permanent sealing of the inflation valve is ensured.
The convex end socket 2 can also be in the shape of a cone, an ellipse, a butterfly or a spherical crown.
The indicating device 10 may be a mechanical indicator, an electrical indicator, or a mechanical and electrical indicator.
One side of the gas cavity can be filled with gas with certain pressure to realize the balance of liquid pressure and gas pressure, and a spring can be arranged on one side of the gas cavity to realize the balance of the liquid pressure and the spring force.
Claims (8)
1. A two-stage bellows pressure vessel capable of displaying volume is characterized in that: the device comprises an outer cylinder (1), a convex end enclosure (2), a concave end cover (3), a primary corrugated pipe (4), a secondary corrugated pipe (5), a primary convex cover (6), a secondary convex cover (7), a connecting seat (8), a connecting flange (9), an indicating device (10), an oil inlet/outlet (11) and an inflation valve (12); the outer cylinder (1) is a cylindrical metal thin-wall cylinder; the convex end enclosure (2) is a hemispherical metal thin-wall part and is connected with the outer cylinder (1) in a welding mode, a hole is formed in the central axis of the convex end enclosure (2), and an inflation valve (12) is installed; the inflation valve (12) is used for inflating and deflating; the concave end cover (3) is of a basin-shaped structure and is connected with the outer cylinder (1) in a welding mode, a closed approximately cylindrical cavity is formed together with the convex end cover (2), an indicating shell (101) of an indicating device (10) is installed at the central axis position of the concave end cover (3), a hole is formed at the position close to the central axis, and an oil inlet and outlet (11) is installed; the oil inlet and outlet (11) is used for realizing oil inlet and outlet; one end of the primary corrugated pipe (4) is connected with the primary convex cover (6), and the other end is connected with the connecting seat (8); one end of the secondary corrugated pipe (5) is connected with the connecting flange (9), and the other end is connected with the connecting seat (8); the secondary convex cover (7) is connected with the connecting seat (8), the liquid cavity is divided into a primary liquid cavity and a secondary liquid cavity by the secondary convex cover (7), an oil through hole is formed in the secondary convex cover (7), and a measuring rod (102) of the indicating device (10) is installed in the central axis position of the secondary convex cover (7); the primary corrugated pipe (4), the secondary corrugated pipe (5), the primary convex cover (6), the secondary convex cover (7), the connecting seat (8) and the connecting flange (9) jointly form an isolation assembly, the isolation assembly is a closed metal corrugated pipe accommodating cavity, one end of the isolation assembly is welded with the concave end cover (3) through the connecting flange (9), and the other end of the isolation assembly divides the pressure container into two closed cavities, namely a gas cavity and a liquid cavity, through the primary convex cover (6).
2. A two-stage bellows-type pressure vessel having a displayable volume according to claim 1, wherein: the outer part of the outer cylinder (1) is provided with a reinforcing rib.
3. A two-stage bellows-type pressure vessel having a displayable volume according to claim 2, wherein: the reinforcing rib is annular.
4. A two-stage bellows-type pressure vessel having a displayable volume according to claim 1, wherein: after the inflation valve (12) is inflated and the performance index of the product is adjusted, the inflation valve is welded by a cap.
5. A two-stage bellows-type pressure vessel having a displayable volume according to claim 1, wherein: the convex seal head (2) is in a conical shape, an oval shape, a butterfly shape or a spherical crown shape.
6. A two-stage bellows-type pressure vessel having a displayable volume according to claim 1, wherein: the indicating device (10) is a mechanical indication and/or an electrical indication.
7. A two-stage bellows-type pressure vessel having a displayable volume according to claim 1, wherein: one side of the gas cavity can be filled with gas with certain pressure to realize the balance of liquid pressure and gas pressure.
8. A two-stage bellows-type pressure vessel having a displayable volume according to claim 7, wherein: or a spring is arranged at one side of the gas cavity to realize the balance between the liquid pressure and the spring force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609173.5A CN112746993A (en) | 2020-12-30 | 2020-12-30 | Two-stage bellows type pressure vessel capable of displaying volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609173.5A CN112746993A (en) | 2020-12-30 | 2020-12-30 | Two-stage bellows type pressure vessel capable of displaying volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112746993A true CN112746993A (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011609173.5A Pending CN112746993A (en) | 2020-12-30 | 2020-12-30 | Two-stage bellows type pressure vessel capable of displaying volume |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436768A (en) * | 2021-06-23 | 2021-09-24 | 中国核动力研究设计院 | Method for determining water level setting value of nuclear power plant voltage stabilizer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6345201U (en) * | 1986-09-05 | 1988-03-26 | ||
| CN1178171A (en) * | 1997-09-29 | 1998-04-08 | 曹建钢 | Membrane accumulator |
| JP2009092143A (en) * | 2007-10-10 | 2009-04-30 | Nok Corp | Accumulator |
| CN102182714A (en) * | 2011-06-08 | 2011-09-14 | 何学才 | Gas and oil non-isolated mixed type piston energy accumulator |
| CN107542709A (en) * | 2016-06-23 | 2018-01-05 | 日本发条株式会社 | hydraulic accumulator |
| CN109983237A (en) * | 2016-12-02 | 2019-07-05 | 伊格尔工业股份有限公司 | Accumulator |
-
2020
- 2020-12-30 CN CN202011609173.5A patent/CN112746993A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6345201U (en) * | 1986-09-05 | 1988-03-26 | ||
| CN1178171A (en) * | 1997-09-29 | 1998-04-08 | 曹建钢 | Membrane accumulator |
| JP2009092143A (en) * | 2007-10-10 | 2009-04-30 | Nok Corp | Accumulator |
| CN102182714A (en) * | 2011-06-08 | 2011-09-14 | 何学才 | Gas and oil non-isolated mixed type piston energy accumulator |
| CN107542709A (en) * | 2016-06-23 | 2018-01-05 | 日本发条株式会社 | hydraulic accumulator |
| CN109983237A (en) * | 2016-12-02 | 2019-07-05 | 伊格尔工业股份有限公司 | Accumulator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436768A (en) * | 2021-06-23 | 2021-09-24 | 中国核动力研究设计院 | Method for determining water level setting value of nuclear power plant voltage stabilizer |
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Application publication date: 20210504 |