Novel energy accumulator

Abstract

The novel energy accumulator relates to the technical field of energy storage equipment and comprises a hydraulic chamber and an air pressure chamber, an air pipe is arranged in the hydraulic chamber, the air inlet end of the air pipe communicates with the air pressure chamber, the air pipe is spirally distributed in the hydraulic chamber, and a liquid outlet and a liquid inlet are formed in the two sides of the hydraulic chamber; the energy storage device has the technical advantages that through the arrangement of the spiral air pipes in the air pressure chamber and the hydraulic chamber, energy storage can be achieved, meanwhile, compared with a capsule type energy accumulator, the number of quick-wear part capsules is reduced, the loss is basically zero, compared with a piston type energy accumulator, a sealing ring is reduced, and the energy storage efficiency is improved. The reliability and the stability of the energy accumulator are further improved; by arranging the clamping structure, the two ends of the spiral air pipe are easily positioned, and the reliability of the whole energy storage system is improved; and by arranging the pre-tightening force adjusting piece, the clamping force of the clamping structure on the spiral air pipe is adjusted, and damage of the clamping structure to the air pipe body is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of energy storage devices, in particular to a novel energy accumulator. BACKGROUND

[0002] As a core component of industrial equipment power transmission, the pressure impact and energy management problems generated in the operation process of the hydraulic system directly affect the reliability and efficiency of the system. In high dynamic application scenarios such as engineering machinery and aerospace, frequent actions of the actuator and load mutation are easy to cause the pressure in the pipeline to fluctuate violently. This transient impact is essentially caused by the instantaneous conversion imbalance of fluid kinetic energy and potential energy. Especially in the working conditions such as rapid opening and closing of the valve, sudden stop of the oil cylinder or direction switching, the kinetic energy mutation caused by the fluid inertia will form a steep pressure wave peak. Such impact not only transmits along the pipeline in the form of high-frequency oscillation, causing periodic stress overload of key hydraulic components such as pumps, valve cores and seals, accelerating material fatigue damage, but also excites high-order modal vibration of the pipeline system, causing structural harmonic resonance. More seriously, the impact energy that is not effectively dissipated will be coupled to the equipment base through the pipe wall, forming a wideband mechanical noise and reducing the comfort of the operating environment. In the energy management dimension, the traditional system lacks an effective transient energy capture mechanism, resulting in a large amount of hydraulic energy escaping in the form of heat dissipation or mechanical vibration during the impact process, which not only aggravates the viscosity deterioration problem caused by oil temperature rise, but also causes a significant decrease in the overall energy efficiency of the system.

[0003] In existing hydraulic accumulators, both the capsule type and the piston type have inherent defects of key vulnerable components. The capsule type accumulator realizes oil-gas separation through an elastic capsule, but the capsule is prone to micro-cracks under alternating stress for a long time. Especially under high-pressure pulsation working conditions, fatigue damage is easy to occur in the repeated folding area of the capsule, leading to gas-liquid mixing and causing system cavitation. Although the piston type accumulator uses a metal piston structure, it relies on a dynamic sealing ring to maintain the oil-gas boundary. In the micron-level reciprocating motion under high-speed pressure impact, the sealing interface not only faces the risk of leakage caused by material wear, but also accelerates wear failure due to the embedding of oil pollution particles in the sealing pair. Both types of designs show significant degradation of reliability and service life in high-temperature, high-pressure and pollution-sensitive environments due to the physical contact characteristics of the core isolation components, forcing the system to be frequently shut down for maintenance, which seriously restricts the application feasibility of high-load continuous operation scenarios. SUMMARY

[0004] The device provides a novel energy accumulator, and the specific implementation manner is as follows:

[0005] A novel energy accumulator comprises:

[0006] A hydraulic chamber and an air pressure chamber, the air pipe is arranged in the hydraulic chamber, and the air inlet end of the air pipe is communicated with the air pressure chamber;

[0007] The air pipe is spirally arranged in the hydraulic chamber, and liquid outlets and liquid inlets are arranged on both sides of the hydraulic chamber.

[0008] The air pressure chamber is connected with a pressure gauge and a gas supplementing opening, and the other end of the air pipe is positioned in the interior of the hydraulic chamber through the clamping structure, and the air pipe is compressed to one side of the air pressure chamber during the liquid conveying process of the hydraulic chamber, and the dynamic deformation of the air pipe maintains the pressure balance of the hydraulic chamber.

[0009] Based on the above technical scheme, the spiral air pipe arranged in the air pressure chamber and the hydraulic chamber realizes the high-efficiency energy storage function, the design discards the capsule which is an easily damaged component, greatly reduces the loss of the equipment during operation, almost realizes zero-loss operation, effectively reduces the frequent maintenance and replacement cost caused by capsule damage, and compared with the piston type accumulator, the design reduces the use of the sealing ring, the sealing ring is a common easily damaged component in the piston type accumulator, and the reduction of the use not only simplifies the system structure, but also further improves the reliability and stability of the system.

[0010] Preferably, a vertical pipe is arranged on the hydraulic chamber, and the clamping structure is installed in the vertical pipe.

[0011] Preferably, the clamping part includes a fixed seat connected to the vertical pipe through a hinge shaft, and a clamping plate is hingedly arranged on both sides of the hinge shaft, and two pairs of vertical clamping plates are provided with linkage plates extending outward.

[0012] Based on the above technical scheme, the clamping structure can easily position the end of the spiral air pipe, the installer only needs to put one end of the air pipe into the corresponding position reserved by the clamping structure, and rotate the screwing part to fix the air pipe with appropriate clamping force, which greatly improves the installation efficiency, and compared with the previous clamping structure or other complex fixing methods, the design greatly shortens the installation time; stable positioning can ensure that the spiral air pipe always remains in place during equipment operation, avoiding faults caused by air pipe displacement, and effectively improving the reliability of the entire energy storage system.

[0013] Preferably, a partition plate is arranged in the middle of the screwing part, and the partition plate is axially slidably connected to the vertical pipe.

[0014] Preferably, the sealing rubber block is arranged between the clamping plate and the vertical pipe, and a bending groove is arranged at the center of the sealing rubber block.

[0015] Based on the above technical scheme, in order to ensure that the sealing performance of the hydraulic chamber is not affected after the clamping structure is installed, the partition plate is specially arranged. The partition plate can effectively block the possible leakage channel between the outside and the hydraulic chamber, and provide protection for the sealing performance of the hydraulic chamber from the structural level. When the sealing rubber block is in action, the sealing rubber block will be elastically deformed under the pressure, tightly fit the gap between the internal parts of the clamping structure and the hydraulic chamber, so that the sealing rubber block can adjust its shape according to different gap shapes and sizes, and ensure that the sealing performance between the parts is always good.

[0016] Preferably, the pre-tightening force adjusting member comprises a screw rod screwed to the fixed seat, and an adjusting bolt screwed to one end of the screw rod outside the fixed seat; the other end of the screw rod is connected with an expansion block through a spring, and the expansion block is connected with the clamping plate through connecting rods on both sides.

[0017] Based on the above technical scheme, the pre-tightening force adjusting member can flexibly adjust the clamping force of the clamping structure. The installer only needs to rotate the adjusting bolt according to the actual working condition requirement, and the spring can apply different degrees of force to the clamping structure to realize the regulation and control of the clamping force of the spiral air pipe. On the one hand, it can avoid the loosening of the air pipe due to insufficient clamping force, which affects the normal operation of the system. On the other hand, it can prevent the damage of the air pipe due to excessive clamping force, and prolong the service life of the air pipe.

[0018] Preferably, the hydraulic chamber is vertically arranged, and the height of the liquid inlet is higher than that of the liquid outlet.

[0019] Preferably, the air pipe is arranged as a double-layer spiral structure along the radial direction of the hydraulic chamber.

[0020] In summary, the present application has the following beneficial technical effects:

[0021] 1. In the utility model, the spiral air pipe in the air pressure chamber and the hydraulic chamber can realize energy storage, reduce the damaged capsule of the capsule type energy accumulator, and basically have zero loss, reduce the sealing ring of the piston type energy accumulator, and further improve the reliability and stability of the energy accumulator.

[0022] 2. In the utility model, the clamping structure is arranged to easily position the two ends of the spiral air pipe, and improve the reliability of the entire energy storage system.

[0023] 3. The utility model has a simple structure, and the pre-tightening force adjusting member is arranged to adjust the clamping force of the clamping structure on the spiral air pipe, and reduce the damage of the clamping structure to the air pipe body. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a sectional view of the utility model structure;

[0025] Figure 2Is the structural schematic diagram of the utility model;

[0026] Figure 3 Is the explosion schematic diagram of part structure of the utility model;

[0027] Figure 4 Is the structural schematic diagram of the clamping structure in the utility model;

[0028] Figure 5 Is the cross-sectional view of structure in the clamping structure of the utility model;

[0029] Figure 6 Is the explosion schematic diagram of the clamping structure in the utility model.

[0030] Mark explanation:

[0031] 1, hydraulic chamber, 2, air pressure chamber, 3, pressure gauge, 4, air pipe, 5, clamping piece, 6, sealing rubber block, 7, screwing piece, 8, pre-tightening force adjusting piece,

[0032] 101, liquid outlet, 102, liquid inlet, 103, vertical pipe, 201, air supplementing port, 501, clamping plate, 502, linkage plate, 503, fixed seat, 504, hinged shaft, 505, external thread, 701, partition plate, 702, screwing thread, 703, annular abutting head, 801, adjusting bolt, 802, screw rod, 803, spring, 804, telescopic block. DETAILED DESCRIPTION

[0033] The specific embodiment of the utility model is described below in combination with the drawings and examples:

[0034] It should be noted that the structure, proportion, size, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that people skilled in the art can understand and read, and are not used to limit the limiting conditions that can be implemented by the utility model. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0035] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present specification are only for the convenience of clear description, and are not used to limit the scope of the utility model that can be implemented. The change or adjustment of the relative relationship, without substantial change of technical content, is also regarded as the scope of the utility model that can be implemented.

[0036] The following will be combined with the drawings Figures 1-6 The present application is further described in detail.

[0037] The embodiment of the present application discloses a novel energy accumulator.

[0038] Embodiment 1

[0039] With reference to Figure 1 The embodiment discloses a new accumulator, which comprises a hydraulic chamber 1 and an air pressure chamber 2, the air pipe 4 is arranged in the hydraulic chamber 1, the air inlet end of the air pipe 4 is communicated with the air pressure chamber 2, the air pipe 4 is arranged in a spiral shape in the hydraulic chamber 1, and the liquid outlet 101 and the liquid inlet 102 are arranged on the two sides of the hydraulic chamber 1.

[0040] The air pressure chamber 2 is connected with the pressure gauge 3 and the air supplement port 201, the air pipe 4 is compressed to one side of the air pressure chamber 2 during the liquid conveying process of the hydraulic chamber 1, and the dynamic deformation of the air pipe 4 is used to maintain the pressure balance of the hydraulic chamber 1, the hydraulic chamber 1 is arranged vertically in the structure, the height of the liquid inlet 102 is higher than that of the liquid outlet 101, and the air pipe 4 is arranged in a double-layer spiral structure along the radial direction of the hydraulic chamber 1.

[0041] Specific implementation process: an hydraulic chamber 1 is added in the middle of the hydraulic pipeline, the air pressure chamber 2 is filled with gas when the hydraulic oil has no pressure, the air in the air pipe 4 is compressed into the air pressure chamber 2 when the hydraulic oil has pressure, and a pressure balance state is achieved, and the air pipe 4 releases pressure to supply energy to the hydraulic oil when the hydraulic oil pressure is too low.

[0042] Embodiment 2

[0043] With reference to Figures 2 to 6 Based on the embodiment 1, the embodiment further discloses a new accumulator, further comprising a clamping structure with a pre-tightening force adjusting part 8, one end of the air pipe 4 is positioned in the hydraulic chamber 1 through the clamping structure, a vertical through pipe 103 is arranged on the hydraulic chamber 1, and the clamping structure is installed in the vertical through pipe 103, wherein the clamping structure comprises a clamping part 5 and a screwing part 7, a sealing rubber block 6 is arranged between the clamping part 5 and the vertical through pipe 103, the sealing rubber block 6 is arranged between the clamping plate 501 and the vertical through pipe 103, and a bending groove is arranged at the center of the sealing rubber block 6.

[0044] The clamping part 5 comprises a fixed seat 503 connected to the vertical through pipe 103 through a hinge shaft 504, the hinge shaft 504 is hingedly connected with two clamping plates 501, and the two pairs of vertical clamping plates 501 are outwardly extended with linkage plates 502, the clamping part 5 is externally screwed with the screwing part 7 through external threads 505, and the bottom end of the screwing part 7 abuts against the linkage plate 502.

[0045] The screwing part 7 is provided with a partition plate 701 axially slidingly connected to the vertical through pipe 103, the screwing part 7 is provided with a screwing thread 702 above the partition plate 701, and the partition plate 701 is provided with an annular abutting head 703 acting on the linkage plate 502 below the partition plate 701.

[0046] The pre-tightening force adjusting member 8 comprises a screw rod 802 connected to the fixed seat 503, and the screw rod 802 is connected with an adjusting bolt 801 at one end outside the fixed seat 503, and the other end of the screw rod 802 is connected with an expansion block 804 through a spring 803, and the expansion block 804 is connected to the clamping plates 501 through connecting rods respectively at two sides.

[0047] Specific implementation process is: rotating the adjusting bolt 801, adjusting the elastic range of the spring 803; putting the air pipe 4 into the hydraulic chamber 1, the open end of the air pipe 4 is communicated with the air pressure chamber 2, and the closed end is clamped between the two clamping plates 501; screwing the screwing part 7, the screwing part 7 is abutted on the linkage plate 502 downward, and then the locking of the clamping structure is realized.

[0048] Many other changes and modifications can be made without departing from the concept and scope of the present application. It should be understood that the present application is not limited to the specific embodiments described herein, but the scope of the present application is defined by the appended claims.

Claims

1. A novel energy storage device, characterized in that, include: The hydraulic chamber (1) and the pneumatic chamber (2) are provided with an air pipe (4) in the hydraulic chamber (1) and the air inlet end of the air pipe (4) is connected to the pneumatic chamber (2). The air pipe (4) is spirally arranged inside the hydraulic chamber (1), and the hydraulic chamber (1) has a liquid outlet (101) and a liquid inlet (102) on both sides; The air pressure chamber (2) is connected to a pressure gauge (3) and an air inlet (201), and the other end of the air pipe (4) is positioned inside the hydraulic chamber (1) by a clamping structure. During the liquid transportation process through the hydraulic chamber (1), the air pipe (4) is compressed to one side of the air pressure chamber (2), and the hydraulic chamber (1) maintains pressure balance according to the dynamic deformation of the air pipe (4).

2. The novel energy storage device according to claim 1, characterized in that, The hydraulic chamber (1) is provided with a vertical through pipe (103), and the clamping structure is installed inside the vertical through pipe (103); The clamping structure includes a clamping member (5) and a screwing member (7), and a sealing block (6) is provided between the clamping member (5) and the vertical through pipe (103).

3. The novel energy storage device according to claim 2, characterized in that, The clamping member (5) includes a fixed seat (503) connected to the vertical through pipe (103) via a hinge shaft (504). The hinge shaft (504) is hinged to both sides with clamping plates (501), and both pairs of clamping plates (501) extend outward with linkage plates (502). The clamping member (5) has a screwing member (7) threaded to its outer side via an external thread (505), and the bottom end of the screwing member (7) abuts against the linkage plate (502).

4. A novel energy storage device according to claim 3, characterized in that, The screwing component (7) is provided with a partition plate (701) in the middle, and the partition plate (701) is axially slidably connected to the vertical through pipe (103); The upper part of the partition plate (701) in the screwing component (7) is provided with screwing grooves (702), and the lower part of the partition plate (701) is provided with an annular abutment (703) that acts on the linkage plate (502).

5. A novel energy storage device according to claim 4, characterized in that, The sealing block (6) is located between the clamp (501) and the vertical pipe (103), and a bending groove is provided at the center of the sealing block (6).

6. A novel energy storage device according to claim 3, characterized in that, It also includes a preload adjustment component (8), which includes a screw (802) threaded to the fixed seat (503), and an adjustment bolt (801) threaded to one end of the screw (802) on the outside of the fixed seat (503); The other end of the lead screw (802) is connected to a telescopic block (804) via a spring (803), and the telescopic block (804) is connected to the clamping plate (501) on both sides via connecting rods.

7. A novel energy storage device according to claim 1, characterized in that, The hydraulic chamber (1) is arranged vertically, and the height of the liquid inlet (102) is higher than the height of the liquid outlet (101).

8. A novel energy storage device according to claim 1, characterized in that, The air pipe (4) is configured as a double-layer spiral structure along the radial direction of the hydraulic chamber (1).

Images