Novel energy accumulator based on molecular spring

Abstract

The invention relates to the technical field of energy accumulators, in particular to a novel energy accumulator based on a molecular spring, which comprises an energy accumulator cavity with a hollow structure, a one-way valve seat is mounted at the upper end of the energy accumulator cavity, and a one-way circulation pressure increasing valve is mounted on the one-way valve seat; a plurality of rubber molecule spring balls are arranged in the energy accumulator cavity, and hydraulic oil is filled outside the rubber molecule spring balls; a one-way circulation prepressing valve is installed at the lower end of the energy accumulator cavity. According to the novel energy accumulator based on the molecular spring, the size of the energy accumulator can be remarkably reduced by using the elastic rubber molecular spring ball, and an idea is provided for miniaturization of the energy accumulator.

Description

Technical Field

[0001] The invention relates to the technical field of energy accumulators, in particular to a novel energy accumulator based on a molecular spring. Background Art

[0002] The accumulator is an energy storage device in the hydraulic and pneumatic system. It converts the energy in the system into compression energy or potential energy and stores it at the right time. When the system needs it, it converts the compression energy or potential energy into hydraulic or air pressure energy and releases it to replenish the system. The main types of accumulators are: spring type and airbag type. The spring accumulator has certain application value in the hydraulic system, but its use is subject to certain restrictions due to its limited energy storage capacity, uneven response speed, reliability problems and high maintenance costs. The airbag accumulator is a commonly used accumulator. However, it also has some shortcomings, such as: the difficulty in manufacturing the airbag and the shell, limited applicable media, insufficient reliability of the airbag and high temperature sensitivity; the airbag is easy to age and other problems. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, a new accumulator based on molecular springs is provided. The use of elastic rubber molecular spring balls can significantly reduce the volume of the accumulator, providing ideas for the miniaturization of the accumulator.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a new type of accumulator based on molecular springs, including an accumulator cavity with a hollow structure, a one-way valve seat is installed at the upper end of the accumulator cavity, and a one-way flow booster valve is installed on the one-way valve seat; a plurality of rubber molecular spring balls are arranged in the accumulator cavity, and hydraulic oil is filled outside the rubber molecular spring balls; a one-way flow pre-pressure valve is installed at the lower end of the accumulator cavity.

[0005] It is further defined that in the above technical solution, the rubber molecular spring ball includes a sealed spherical rubber shell, water and molecular spring material; the molecular spring material is embedded in the spherical rubber shell and then filled with water; a plurality of nano-pores are arranged in the molecular spring material, and when the hydraulic pipeline is impacted and the pressure in the accumulator cavity increases, the water will be pressed into the nano-pores inside the molecular spring material, thereby reducing the volume of the rubber molecular spring ball, and the hydraulic oil in the hydraulic pipeline can enter the accumulator cavity at this time; when the impact of the hydraulic pipeline ends, the water absorbed by the nano-pores inside the molecular spring material will be spontaneously discharged under the action of capillary force, thereby restoring the volume of the rubber molecular spring ball to its initial size, and the hydraulic oil entering the accumulator cavity will be returned to the hydraulic pipeline through the one-way flow compensation valve.

[0006] It is further defined that, in the above technical solution, a one-way flow compensation valve is also installed on one side of the one-way flow booster valve, and the one-way flow compensation valve is also embedded in the one-way valve seat.

[0007] It is further defined that in the above technical solution, the cross-section of the accumulator cavity is a capsule-shaped structure, and a top threaded through hole and a bottom threaded through hole are respectively arranged at both ends of the accumulator cavity, and the top threaded through hole is threadedly connected to the one-way valve seat; the bottom threaded through hole is threadedly connected to the one-way flow pre-pressure valve.

[0008] It is further defined that in the above technical solution, the one-way flow boosting valve includes a top through hole of the one-way flow boosting valve, an upper external thread of the one-way flow boosting valve, a one-way flow boosting valve valve core, a one-way flow boosting valve spring, a lower external thread of the one-way flow boosting valve and a bottom through hole of the one-way flow boosting valve.

[0009] It is further defined that in the above technical solution, the one-way flow pre-pressure valve includes a one-way flow pre-pressure valve spring, a one-way flow pre-pressure valve top through hole, a one-way flow pre-pressure valve external thread, a one-way flow pre-pressure valve valve core, a one-way flow pre-pressure valve bottom through hole and a one-way flow pre-pressure valve bottom boss.

[0010] It is further defined that in the above technical solution, the one-way flow compensation valve includes a through hole at the top of the one-way flow compensation valve, a square groove at the top of the one-way flow compensation valve, an external thread of the one-way flow compensation valve, a one-way flow compensation valve spring, a one-way flow compensation valve valve core and a through hole at the bottom of the one-way flow compensation valve.

[0011] It is further defined that in the above technical solution, the one-way valve seat includes a first top threaded through hole of the one-way valve seat, a second top threaded through hole of the one-way valve seat, a bottom through hole of the one-way valve seat and an external thread at the bottom of the one-way valve seat.

[0012] The beneficial effect of the present invention is that the present invention proposes a novel accumulator based on molecular springs, which can significantly reduce the volume of the accumulator by using elastic rubber molecular spring balls, and provides ideas for miniaturization of the accumulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle accumulator cavity;

[0016] Figure 3 yes Figure 1 Schematic diagram of the structure of the rubber molecule spring ball;

[0017] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure of a one-way flow booster valve;

[0018] Figure 5 yes Figure 1 A schematic diagram of the cross-sectional structure of a one-way flow pre-pressure valve;

[0019] Figure 6 yes Figure 1 A schematic diagram of the cross-sectional structure of a one-way flow compensation valve;

[0020] Figure 7 yes Figure 1 Schematic diagram of the cross-sectional structure of the one-way valve seat.

[0021] The numbers in the attached drawings are: 101, one-way flow booster valve, 102, one-way flow booster valve top through hole, 103, one-way flow booster valve upper external thread, 104, one-way flow booster valve valve core, 105, one-way flow booster valve spring, 106, one-way flow booster valve lower external thread, 107, one-way flow booster valve bottom through hole, 201, accumulator cavity, 202, top threaded through hole, 203, bottom threaded through hole, 204, accumulator cavity bottom boss, 3, hydraulic oil, 402, spherical rubber shell, 403, water, 404, molecular spring material, 401, rubber molecular spring ball, 501, one-way flow preload valve, 502, one-way flow preload valve spring, 503, one-way flow preload Through hole at top of valve, 504, external thread of one-way flow pre-pressure valve, 505, valve core of one-way flow pre-pressure valve, 506, through hole at bottom of one-way flow pre-pressure valve, 507, bottom boss of one-way flow pre-pressure valve, 601, one-way flow compensation valve, 602, through hole at top of one-way flow compensation valve, 603, square groove at top of one-way flow compensation valve, 604, external thread of one-way flow compensation valve, 605, one-way flow compensation valve spring, 606, valve core of one-way flow compensation valve, 607, through hole at bottom of one-way flow compensation valve, 701, one-way valve seat, 702, first threaded through hole at top of one-way valve seat, 703, second threaded through hole at top of one-way valve seat, 704, through hole at bottom of one-way valve seat, 705, external thread at bottom of one-way valve seat. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] In the present application, hydraulic oil 3 is injected into the accumulator chamber 201 through the one-way flow booster valve 101, so that the oil pressure can reach the working pressure of the rubber molecular spring ball 401; the accumulator chamber 201 is filled with hydraulic oil 3, and the rubber molecular spring ball 401 is dispersed in the hydraulic oil 3; the one-way flow pre-pressure valve 501 is connected to the hydraulic pipeline. When an impact occurs in the hydraulic pipeline, the impact force can push open the one-way flow pre-pressure valve valve core 505, so that the impact force is absorbed and stored by the rubber molecular spring ball 401, maintaining the stability of the pipeline pressure; the one-way flow compensation valve 601 is connected in parallel with the one-way flow pre-pressure valve 501 on the same hydraulic pipeline through the oil pipeline. After the impact of the hydraulic pipeline ends, the molecular spring will release the elastic potential energy, thereby forcing the hydraulic oil that enters the accumulator chamber 201 during the impact to return to the hydraulic pipeline from the one-way flow compensation valve 601. The one-way flow booster valve 101 allows the hydraulic oil 3 to be input from the outside into the accumulator chamber 201 through the valve seat, and makes the oil pressure in the accumulator chamber 201 reach the working pressure required by the molecular spring.

[0024] Two threaded through holes are arranged at the top of the one-way valve seat 701, which are respectively used to connect the one-way flow boosting valve 101 and the one-way flow compensating valve 601. The bottom boss is provided with external threads and a central through hole. The external threads are used to connect with the accumulator cavity 201, and the bottom central through hole is used for the flow of hydraulic oil 3 between the one-way flow pre-pressure valve 101, the one-way flow compensating valve 601 and the accumulator cavity 201.

[0025] The accumulator cavity 201 is a capsule-shaped metal cavity with threaded through holes at both ends. The top threaded through hole is used to connect to the bottom external thread 705 of the one-way valve seat, and the bottom threaded through hole is used to connect to the external thread 504 of the one-way flow pre-compression valve. The cavity is filled with hydraulic oil 3, and the rubber molecular spring balls 401 are dispersed in the hydraulic oil 3; an accumulator cavity bottom boss 204 is also provided at the bottom of the accumulator cavity 201.

[0026] The rubber molecular spring ball 401 is composed of a sealed spherical rubber shell 402, water 403 and a molecular spring material 404. The water 403 just fills the internal space of the rubber shell 402, and the molecular spring material 404 is dispersed in the spherical rubber shell 402. When the hydraulic pipeline is impacted and the pressure in the accumulator cavity 201 increases, the water will be pressed into the nano-pores inside the molecular spring material 404, thereby reducing the volume of the rubber molecular spring ball 401. At this time, the hydraulic oil 3 in the hydraulic pipeline can enter the accumulator cavity 201; when the hydraulic pipeline impact ends, the water absorbed by the nano-pores inside the molecular spring material 404 will be spontaneously discharged under the action of capillary force, thereby restoring the volume of the rubber molecular spring ball 401 to its initial size. At this time, the hydraulic oil entering the accumulator cavity will be returned to the hydraulic pipeline through the one-way flow compensation valve 601.

[0027] The upper end of the one-way flow pre-pressure valve 501 is connected to the bottom of the accumulator cavity 201 through a thread, and the lower end is connected to the hydraulic pipeline. When the pressure in the hydraulic pipeline suddenly increases, the valve core of the one-way flow pre-pressure valve 501 will be pushed open. At this time, the water 403 in the rubber molecular spring ball 401 will be pressed into the molecular spring material 404, thereby reducing the volume of the rubber molecular spring ball 401, and the hydraulic oil in the hydraulic pipeline enters the accumulator cavity 201.

[0028] The lower end of the one-way flow compensation valve 601 is connected to the accumulator cavity through the valve seat, and only allows the hydraulic oil 3 to flow out from the accumulator cavity 201. When the impact of the hydraulic pipeline ends, the volume of the rubber molecular spring ball 401 will return to its original volume due to the discharge of internal water by the molecular spring material 404, thereby allowing the hydraulic oil 3 entering the accumulator cavity 201 to be transported back to the hydraulic pipeline.

[0029] In this application, the core of the molecular spring suspension function is based on a liquid-solid mixed medium, which is a mixture of two materials: a directional modified metal skeleton material ZIF-8 material and water. The working principle of the molecular spring suspension is to use the nano-pores inside the ZIF-8 material to store and release energy under pressure. Specifically, liquid water can be pressed into the pores of the material under rated pressure; and once the external pressure is removed, the water pressed into the micropores inside the material will spontaneously escape from the material. When the pipeline pressure suddenly increases, water is pressed into the micropores inside the molecular spring material, so that the hydraulic oil can enter the accumulator through the one-way valve; when the pipeline pressure returns to normal, the water in the molecular spring will automatically escape, thereby discharging the hydraulic oil that enters the accumulator when the hydraulic pipeline pressure increases.

[0030] See Figure 1 and 7What is shown is a novel accumulator based on molecular springs, including an accumulator cavity 201 with a hollow structure, a one-way valve seat 701 installed at the upper end of the accumulator cavity 201, and a one-way flow booster valve 101 installed on the one-way valve seat 701; a plurality of rubber molecular spring balls 401 are arranged in the accumulator cavity 201, and hydraulic oil 3 is filled outside the rubber molecular spring balls 401; a one-way flow pre-pressure valve 501 is installed at the lower end of the accumulator cavity 201.

[0031] The rubber molecular spring ball 404 includes a sealed spherical rubber shell 402, water 403 and a molecular spring material 404; the molecular spring material 404 is embedded in the spherical rubber shell 402 and filled with water 403; a plurality of nano-pores are arranged in the molecular spring material 404, and when the hydraulic pipeline is impacted and the pressure in the accumulator cavity 201 increases, the water 403 will be pressed into the nano-pores inside the molecular spring material 404, thereby reducing the volume of the rubber molecular spring ball 401, and at this time, the hydraulic oil 3 in the hydraulic pipeline can enter the accumulator cavity 201; when the hydraulic pipeline impact ends, the water absorbed by the nano-pores inside the molecular spring material 404 will be spontaneously discharged under the action of capillary force, thereby restoring the volume of the rubber molecular spring ball 401 to its initial size, and at this time, the hydraulic oil 3 entering the accumulator cavity 201 will be returned to the hydraulic pipeline through the one-way flow compensation valve 601. A one-way flow compensating valve 601 is also installed on one side of the one-way flow boosting valve 101, and the one-way flow compensating valve 601 is also embedded in the one-way valve seat 701. The cross section of the accumulator chamber 201 is a capsule-shaped structure, and the two ends of the accumulator chamber 201 are respectively provided with a top threaded through hole 202 and a bottom threaded through hole 203, the top threaded through hole 202 is threadedly connected to the one-way valve seat 701; the bottom threaded through hole 203 is threadedly connected to the one-way flow pre-compression valve 501. The one-way flow boosting valve 101 includes a top through hole 102 of the one-way flow boosting valve, an upper external thread 103 of the one-way flow boosting valve, a one-way flow boosting valve valve core 104, a one-way flow boosting valve spring 105, a lower external thread 106 of the one-way flow boosting valve, and a bottom through hole 107 of the one-way flow boosting valve. The one-way flow pre-pressure valve 501 includes a one-way flow pre-pressure valve spring 502, a one-way flow pre-pressure valve top through hole 503, a one-way flow pre-pressure valve external thread 504, a one-way flow pre-pressure valve core 505, a one-way flow pre-pressure valve bottom through hole 506 and a one-way flow pre-pressure valve bottom boss 507. The one-way flow compensation valve 601 includes a one-way flow compensation valve top through hole 602, a one-way flow compensation valve top square groove 603, a one-way flow compensation valve external thread 604, a one-way flow compensation valve spring 605, a one-way flow compensation valve core 606 and a one-way flow compensation valve bottom through hole 607. The one-way valve seat 701 includes a one-way valve seat first top threaded through hole 702, a one-way valve seat second top threaded through hole 703, a one-way valve seat bottom through hole 704 and a one-way valve seat bottom external thread 705.

[0032] like Figure 1 The figure shows a novel accumulator based on molecular springs of the present invention, comprising a one-way flow booster valve 101, an accumulator cavity 2, a rubber molecular spring ball 401, a one-way flow pre-load valve 2 and a one-way flow compensation valve 601; hydraulic oil 3 is injected into the accumulator cavity 201 through the one-way flow booster valve 101, so that the oil pressure can reach the working pressure of the rubber molecular spring ball 404; the accumulator cavity 201 is filled with hydraulic oil 3, and the rubber molecular spring ball 401 is dispersed in the hydraulic oil 3; the one-way flow pre-load valve 501 is connected to the hydraulic pipeline, and when an impact occurs in the hydraulic pipeline, the impact force can push open the one-way flow pre-load valve valve core 505, so that the impact force is absorbed and stored by the rubber molecular spring ball 401, and the stability of the pipeline pressure is maintained; the one-way flow compensation valve 601 is also connected to the hydraulic pipeline through an oil pipeline, and is used to discharge the hydraulic oil 3 that enters the accumulator cavity 201 during the impact process.

[0033] like Figure 2 As shown, the accumulator cavity 201 is a capsule-shaped metal cavity with threaded through holes at both ends. The top threaded through hole is used to connect to the bottom external thread 705 of the one-way valve seat, and the bottom threaded through hole is used to connect to the external thread of the one-way flow pre-pressure valve 2; the accumulator cavity 201 is filled with hydraulic oil 3, and the rubber molecular spring balls 401 are dispersed in the hydraulic oil 3.

[0034] like Figure 3 As shown, the rubber molecular spring ball 401 is composed of a sealed spherical rubber shell 402, water 403 and a molecular spring material 404. The water 403 just fills the internal space of the rubber shell 401, and the molecular spring material 404 is dispersed in the rubber shell 401. When the hydraulic pipeline is impacted and the pressure in the accumulator cavity 201 increases, the water 403 will be pressed into the nano-pores inside the molecular spring material 404, thereby reducing the volume of the rubber molecular spring ball 401. At this time, the hydraulic oil in the hydraulic pipeline can enter the accumulator cavity 201; when the hydraulic pipeline impact ends, the water absorbed by the nano-pores inside the molecular spring material 404 will be spontaneously discharged under the action of capillary force, thereby restoring the volume of the rubber molecular spring ball 401 to its initial size. At this time, the hydraulic oil 3 entering the accumulator cavity 201 will be returned to the hydraulic pipeline through the one-way flow compensation valve 3.

[0035] like Figure 4 As shown, the one-way flow booster valve 101 allows the hydraulic oil 3 to be input from the outside into the accumulator chamber 201 through the one-way valve seat 701 , and makes the oil pressure in the accumulator chamber 201 reach the working pressure required by the rubber molecular spring ball 401 .

[0036] like Figure 5As shown, the upper end of the one-way flow pre-pressure valve 501 is connected to the threaded through hole 203 at the bottom of the accumulator cavity through a thread 504, and the lower end is connected to the hydraulic pipeline. When the pressure in the hydraulic pipeline suddenly increases, the hydraulic oil acts on the valve core 505 of the one-way flow pre-pressure valve 2 through the through hole 506 at the bottom of the one-way flow pre-pressure valve 2. Under the action of the pressure difference, the valve core 505 of the one-way flow pre-pressure valve 2 will be pushed open. At this time, the water 403 in the rubber molecular spring ball 401 will be pressed into the molecular spring material 404, thereby reducing the volume of the rubber molecular spring ball 401, and the hydraulic oil in the hydraulic pipeline enters the accumulator cavity 201.

[0037] like Figure 6 As shown, the lower end of the one-way flow compensation valve 601 is connected to the accumulator chamber 201 through the one-way valve seat 701. When the impact of the hydraulic pipeline ends, the volume of the rubber molecular spring ball 401 will restore the initial volume because the molecular spring material 404 discharges the internal water 403, thereby allowing the hydraulic oil 3 entering the accumulator chamber 201 to be transported back to the hydraulic pipeline.

[0038] like Figure 7 As shown, two threaded through holes 702 and 703 are arranged on the top of the one-way valve seat 701, which are respectively used to connect the one-way flow boosting valve 101 and the one-way flow compensation valve 601. The bottom boss is provided with an external thread 705 and a central through hole 704. The external thread 705 is used to connect with the threaded through hole 202 at the top of the accumulator chamber 201. The bottom central through hole 704 is used for the flow of hydraulic oil between the one-way flow pre-pressure valve 501, the one-way flow compensation valve 701 and the accumulator chamber 201.

[0039] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new type of accumulator based on molecular spring, characterized by: It comprises an accumulator cavity with a hollow structure, a one-way valve seat is installed at the upper end of the accumulator cavity, and a one-way flow booster valve is installed on the one-way valve seat; a plurality of rubber molecular spring balls are arranged in the accumulator cavity, and hydraulic oil is filled outside the rubber molecular spring balls; a one-way flow pre-pressure valve is installed at the lower end of the accumulator cavity.

2. A novel accumulator based on molecular spring according to claim 1, characterized in that: A one-way flow compensating valve is also installed on one side of the one-way flow boosting valve, and the one-way flow compensating valve is also embedded on the one-way valve seat.

3. A novel accumulator based on molecular spring according to claim 2, characterized in that: The rubber molecular spring ball comprises a sealed spherical rubber shell, water and a molecular spring material; the molecular spring material is embedded in the spherical rubber shell and then filled with water; a plurality of nano-pores are arranged in the molecular spring material, and when the hydraulic pipeline is impacted and the pressure in the accumulator cavity increases, the water will be pressed into the nano-pores inside the molecular spring material, thereby reducing the volume of the rubber molecular spring ball, and the hydraulic oil in the hydraulic pipeline can enter the accumulator cavity at this time; when the hydraulic pipeline impact ends, the water absorbed by the nano-pores inside the molecular spring material will be spontaneously discharged under the action of capillary force, thereby restoring the volume of the rubber molecular spring ball to its initial size, and the hydraulic oil entering the accumulator cavity will be transported back to the hydraulic pipeline through the one-way flow compensation valve.

4. A novel accumulator based on molecular spring according to claim 1, characterized in that: The cross section of the accumulator cavity is a capsule-shaped structure, and the two ends of the accumulator cavity are respectively provided with a top threaded through hole and a bottom threaded through hole, the top threaded through hole is threadedly connected to the one-way valve seat; the bottom threaded through hole is threadedly connected to the one-way flow pre-pressure valve.

5. The novel accumulator based on molecular spring according to claim 1 is characterized in that: The one-way flow booster valve comprises a one-way flow booster valve top through hole, an upper external thread of the one-way flow booster valve, a one-way flow booster valve valve core, a one-way flow booster valve spring, a lower external thread of the one-way flow booster valve and a one-way flow booster valve bottom through hole.

6. The novel accumulator based on molecular spring according to claim 1 is characterized in that: The one-way flow pre-pressure valve comprises a one-way flow pre-pressure valve spring, a one-way flow pre-pressure valve top through hole, a one-way flow pre-pressure valve external thread, a one-way flow pre-pressure valve valve core, a one-way flow pre-pressure valve bottom through hole and a one-way flow pre-pressure valve bottom boss.

7. A novel accumulator based on molecular spring according to claim 2, characterized in that: The one-way flow compensation valve comprises a one-way flow compensation valve top through hole, a one-way flow compensation valve top square groove, a one-way flow compensation valve external thread, a one-way flow compensation valve spring, a one-way flow compensation valve valve core and a one-way flow compensation valve bottom through hole.

8. The novel accumulator based on molecular spring according to claim 1 is characterized in that: The one-way valve seat comprises a first top threaded through hole of the one-way valve seat, a second top threaded through hole of the one-way valve seat, a bottom through hole of the one-way valve seat and an external thread at the bottom of the one-way valve seat.

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