Double-layer leakage-proof energy accumulator
By using a double-layer leak-proof accumulator design, and forming a multi-chamber structure with sleeve and piston assemblies, the problem of compressible fluid leakage into fluid products is solved, thus achieving product quality stability and sealing.
Patent Information
- Application Number
- CN202520262941.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-18
AI Technical Summary
In existing accumulators, compressible fluid leaks into fluid products, affecting product quality.
The accumulator adopts a double-layer leak-proof design, which forms a first, second and third chamber through the connection of a sleeve, a shell and a piston assembly. The third chamber is sealed to contain the compressible fluid, and the piston assembly is sealed to the shell to ensure that the compressible fluid only leaks into the second chamber and does not enter the first chamber.
It effectively prevents compressible fluids from entering fluid products, improves product quality, reduces the possibility of leakage, and ensures product stability.
Smart Images
Figure CN223952936U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to energy storage device technical field more particularly, relate to a double -layer anti -leakage type energy storage device. BACKGROUND
[0002] When producing fluid products such as energy storage liquid, paste material, usually adopt energy storage device and production equipment connection, to guarantee the product pressure in production equipment normal.
[0003] The energy storage device used in the related art usually comprises a shell and a piston sealingly and slidably connected in the shell, the piston divides the interior of the shell into two chambers, one of the chambers is in communication with the fluid product such as paste material, and the other chamber stores compressible fluid such as gas. When the pressure of the fluid product increases, the compressible fluid is compressed by the piston to store energy and reduce the pressure of the fluid product. When the pressure of the fluid product decreases, the compressible fluid pushes the piston to release the stored energy, so that the pressure of the fluid product increases, thereby avoiding large fluctuations in product pressure. However, if the seal between the piston and the shell fails, the compressible fluid is likely to leak into the fluid product, affecting the quality of the fluid product, for example, causing bubbles in the paste material. SUMMARY
[0004] The utility model discloses to overcome the above-mentioned prior art energy storage device compressible fluid leakage into the fluid product and affect product quality problem, provide a double -layer anti -leakage type energy storage device, can avoid compressible fluid leakage into the fluid product, thereby improve product quality.
[0005] To solve the above technical problems, the utility model adopts the technical scheme: a double -layer anti -leakage type energy storage device, including the shell with inner chamber, the shell is sealingly and slidably connected with piston assembly to divide the inner chamber into first chamber and second chamber, the first chamber is used to communicate fluid product, the second chamber is equipped with the sleeve connected with the shell, the one end of piston assembly towards the second chamber is sealingly and slidably connected in the sleeve to form the airtight third chamber in the sleeve, the third chamber is used to accommodate compressible fluid.
[0006] In the technical scheme of the utility model, first chamber, second chamber and third chamber are connected through sleeve, shell and piston assembly, wherein first chamber communicates fluid product, and the third chamber containing compressible fluid is sealed, the pressure of fluid product is transmitted to compressible fluid through piston, and compressible fluid is used for storing and releasing energy. Since the third chamber is arranged in the second chamber, when the seal between the piston assembly and the third chamber fails, the compressible fluid will leak from the third chamber into the second chamber, and since the piston assembly is sealingly connected with the shell, the compressible fluid entering the second chamber will not enter the first chamber and contact the fluid product, thereby avoiding affecting the product quality.
[0007] Further, the piston assembly comprises a detachably connected piston body and a movable rod, the piston body is sealingly and slidingly connected with the inner side wall of the shell, and the movable rod is sealingly and slidingly connected with the inner side wall of the sleeve.
[0008] In the scheme, the piston body and the movable rod are sealingly and slidingly connected with the outer cylinder body and the sleeve respectively, so as to form the first chamber, the second chamber and the third chamber.
[0009] Further, one end of the sleeve towards the piston assembly is coaxially connected with a sealing ring, the movable rod passes through the sealing ring and is connected, and a first sealing assembly is arranged between the sealing ring and the movable rod.
[0010] In the scheme, the sealing ring and the first sealing assembly are used to improve the sealing property between the sleeve and the movable rod and the sealing property of the third chamber.
[0011] Further, the first sealing assembly comprises a first O-shaped sealing ring, a second O-shaped sealing ring and a first Y-shaped sealing ring arranged in sequence from bottom to top, the inner side wall of the sealing ring is sequentially provided with a first sealing groove, a second sealing groove and a third sealing groove in sequence from bottom to top in the axial direction, the first O-shaped sealing ring is clamped in the first sealing groove, the second O-shaped sealing ring is clamped in the second sealing groove, and the first Y-shaped sealing ring is clamped in the third sealing groove.
[0012] In the scheme, the first O-shaped sealing ring, the second O-shaped sealing ring and the first Y-shaped sealing ring arranged in sequence from bottom to top are used, the Y-shaped sealing ring has higher pressure resistance, the first Y-shaped sealing ring is arranged on the side close to the third chamber, so that it bears the pressure of the compressible fluid. The first O-shaped sealing ring and the second O-shaped sealing ring are further arranged below the first Y-shaped sealing ring, which plays a role of further auxiliary sealing, and the first sealing assembly has better sealing effect under the condition of occupying small space.
[0013] Further, a second sealing assembly is arranged between the piston body and the shell.
[0014] In the scheme, the second sealing assembly is arranged to improve the sealing between the piston body and the shell, and the first chamber and the second chamber are prevented from being communicated.
[0015] Further, the second sealing assembly comprises a second Y-shaped sealing ring and a third Y-shaped sealing ring, fourth and fifth sealing grooves are arranged on the outer side wall of the piston body in the axial direction, the second Y-shaped sealing ring is clamped in the fourth sealing groove, and the third Y-shaped sealing ring is clamped in the fifth sealing groove.
[0016] In the scheme, the second Y-shaped sealing ring and the third Y-shaped sealing ring arranged coaxially in sequence make the second sealing assembly have a better sealing effect.
[0017] Further, the shell comprises an outer cylinder and an end cover, one end of the outer cylinder is detachably connected with the end cover, the other end of the outer cylinder is provided with an interface for communicating fluid products, and the sleeve is connected to the end cover.
[0018] In the scheme, the outer cylinder and the end cover are detachably connected to form the shell, so that the piston assembly is assembled in the shell.
[0019] Further, the end cover is provided with a vent hole communicated with the second chamber.
[0020] In the scheme, the compressible fluid in the third chamber is air, the second chamber is communicated with the external air through the vent hole, when the air in the third chamber leaks, the air can enter the external air from the vent hole, and contact with the product is avoided.
[0021] Further, the end cover is provided with a connecting hole on one side of the third chamber, and the connecting hole is used to connect a pressure gauge for detecting the pressure in the third chamber.
[0022] In the scheme, the pressure gauge is connected through the connecting hole, the pressure value in the third chamber can be detected, and the use state of the accumulator can be monitored.
[0023] Further, the end cover is provided with an air inlet and an air outlet communicated with the third chamber, the air inlet is used to connect an air inlet valve, and the air outlet is used to connect an air outlet valve.
[0024] In the scheme, the air inlet valve can be connected through the air inlet, and an external air source device can be connected, the third chamber can be inflated, and the air outlet valve can be connected through the air outlet, so that the gas in the third chamber can be discharged.
[0025] Compared with the prior art, the beneficial effects of the utility model are:
[0026] The third chamber is arranged in the second chamber, when the sealing between the piston assembly and the third chamber fails, the compressible fluid can leak from the third chamber into the second chamber, and since the piston assembly is sealingly connected with the shell, the compressible fluid in the second chamber cannot enter the first chamber and contact the fluid product, thereby avoiding affecting the product quality.
[0027] The double-layer leakage-proof accumulator is provided with the first sealing assembly and the second sealing assembly, the sealing between the piston body and the shell and between the movable rod and the sleeve can be improved, and the possibility of leakage of the compressible fluid or the fluid product is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 is a sectional view of the double-layer leakage-proof accumulator along an axial direction of the utility model;
[0029] Figure 2 is an enlarged view of A of Figure 1
[0030] Figure 3 is an enlarged view of B of Figure 1
[0031] Figure 4 is an enlarged view of C of Figure 1
[0032] Figure 5 is a front view of the double-layer leakage-proof accumulator of the utility model;
[0033] Figure 6 is a top view of the double-layer leakage-proof accumulator of the utility model.
[0034] In the drawings: 1, shell; 11, first chamber; 12, second chamber; 13, outer cylinder body; 14, end cover; 141, air hole; 142, connecting hole; 143, air inlet; 144, air outlet; 145, end ring groove; 146, end sealing ring; 147, standby mounting port; 15, interface; 2, piston assembly; 21, piston body; 211, piston ring; 22, movable rod; 3, sleeve; 31, third chamber; 4, sealing ring; 5, first sealing assembly; 51, first O-shaped sealing ring; 52, second O-shaped sealing ring; 53, first Y-shaped sealing ring; 6, second sealing assembly; 61, second Y-shaped sealing ring; 62, third Y-shaped sealing ring. DETAILED DESCRIPTION
[0035] The drawings are only used for illustrative description, and cannot be understood as a limitation to the patent; in order to better illustrate the embodiments, some components in the drawings can be omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted. The positional relationship described in the drawings is only used for illustrative description, and cannot be understood as a limitation to the patent.
[0036] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore the terms describing the positional relationship in the drawings are only used for illustrative description, and cannot be understood as a limitation to the patent, and for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0037] The technical scheme of the present application will be further described in detail below through specific embodiments and in conjunction with the drawings:
[0038] Embodiment 1
[0039] Reference Figures 1 to 6 The present embodiment discloses a double-layer leak-proof energy accumulator, comprising a shell 1 with an inner cavity, a piston assembly 2 is sealingly and slidably connected in the shell 1 to divide the inner cavity into a first chamber 11 and a second chamber 12, the first chamber 11 is used for communicating fluid products, a sleeve 3 connected with the shell 1 is arranged in the second chamber 12, and one end of the piston assembly 2 facing the second chamber 12 is sealingly and slidably connected in the sleeve 3 to form a sealed third chamber 31 in the sleeve 3, and the third chamber 31 is used for containing compressible fluid. Wherein, the fluid product in the first chamber 11 can be paste material and the like, and the compressible fluid in the third chamber 31 can be air.
[0040] In the present embodiment, the first chamber 11, the second chamber 12 and the third chamber 31 are connected by the sleeve 3, the shell 1 and the piston assembly 2, the first chamber 11 communicates the fluid product, the sealed third chamber 31 contains the compressible fluid, the pressure of the fluid product is transmitted to the compressible fluid through the piston, and the energy is stored and released through the compressible fluid. Since the third chamber 31 is arranged in the second chamber 12, when the seal between the piston assembly 2 and the third chamber 31 fails, the compressible fluid will leak from the third chamber 31 into the second chamber 12, and since the piston assembly 2 is sealingly connected with the shell 1, the compressible fluid entering the second chamber 12 will not enter the first chamber 11 and contact the fluid product, thereby avoiding affecting the product quality.
[0041] With reference to Figure 1 , the shell 1 comprises an outer cylinder 13 and an end cover 14, one end of the outer cylinder 13 is detachably connected with the end cover 14, and the other end of the outer cylinder 13 is provided with an interface 15 for communicating with the fluid product, and the sleeve 3 is coaxially connected with the outer cylinder 13 on the end cover 14.
[0042] With reference to Figure 1 and Figure 4 , specifically, taking the illustrated direction as an example, the outer cylinder 13 is in a substantially cylindrical shape, the upper end of which is closed by the bolted end cover 14, and the lower end of which is provided with the interface 15 in the middle, and the diameter of the interface 15 can be smaller than the inner diameter of the outer cylinder 13. The equipment for producing the fluid product can communicate the pipeline of the fluid product with the interface, so that the fluid product can be filled into the first chamber 11. The shell 1 is designed to be detachably connected with the outer cylinder 13 and the end cover 14, so as to detach the end cover 14 and assemble the piston assembly 2 into the shell 1. The end cover 14 is provided with an end ring groove 145 on the side facing the outer cylinder 13, and the end ring groove 145 is provided with an end sealing ring 146 and is in abutment with the end face of the outer cylinder 13, thereby improving the air tightness of the connection between the end cover 14 and the outer cylinder 13.
[0043] With reference to Figure 1 , the piston assembly 2 comprises a detachably connected piston body 21 and a movable rod 22, the piston body 21 is in sealing sliding connection with the inner side wall of the outer cylinder 13, and the movable rod 22 is in sealing sliding connection with the inner side wall of the sleeve 3. Specifically, the piston body 21 is coaxially arranged with the movable rod 22 and is detachably connected by bolts.
[0044] With reference to Figure 1 , taking the illustrated direction as an example, the piston body 21 divides the inner cavity into the first chamber 11 located below and the second chamber 12 located above. The movable rod 22 extends axially from the upper side of the piston body 21, and the diameter of the movable rod 22 is smaller than the diameter of the piston body 21. The sleeve 3 is coaxially arranged with the movable rod 22 and is detachably connected by bolts on the upper side of the second chamber 12, and the movable rod 22 is in sealing sliding connection in the sleeve 3 to form the third chamber 31. The piston body 21 is provided with an annular groove in the circumferential direction, and the piston ring 211 is sleeved in the annular groove.
[0045] With reference to Figure 1 , the end of the sleeve 3 facing the piston assembly 2 is coaxially connected with a sealing ring 4, the movable rod 22 is connected through the sealing ring 4, and the first sealing assembly 5 is arranged between the sealing ring 4 and the movable rod 22.
[0046] With reference to Figure 1, specifically, in the direction of the drawing, the sleeve 3 is substantially cylindrical, and shoulders are respectively radially extended at the upper end and the lower end of the sleeve 3. The shoulder at the upper end is in abutment with the end cover 14, so as to be bolted with the end cover 14. The shoulder at the lower end is in abutment with the sealing ring 4, so as to be bolted with the sealing ring 4 at the lower end of the sleeve 3. The inner diameter of the sealing ring 4 is the same as the inner diameter of the sleeve 3, and the sealing ring 4 is coaxially connected with the sleeve 3, and the movable rod 22 extends into the sleeve 3 through the sealing ring 4 and is sealingly connected.
[0047] With reference to Figure 1 and Figure 2 , the first sealing assembly 5 comprises a first O-shaped sealing ring 51, a second O-shaped sealing ring 52 and a first Y-shaped sealing ring 53 arranged in sequence from bottom to top, and the inner side wall of the sealing ring 4 is sequentially provided with a first sealing groove, a second sealing groove and a third sealing groove in the axial direction from bottom to top, the first O-shaped sealing ring 51 is clamped in the first sealing groove, the second O-shaped sealing ring 52 is clamped in the second sealing groove, and the first Y-shaped sealing ring is clamped in the third sealing groove. In the direction of the drawing, the first O-shaped sealing ring 51, the second O-shaped sealing ring 52 and the first Y-shaped sealing ring 53 are arranged in sequence from bottom to top. The Y-shaped sealing ring has good pressure resistance, and the O-shaped sealing ring has small size. In this embodiment, the first Y-shaped sealing ring is arranged close to one side of the third chamber, so that it directly bears the pressure of the compressible fluid. The first O-shaped sealing ring and the second O-shaped sealing ring are arranged below the first Y-shaped sealing ring, which play a further auxiliary sealing role, and have small overall space occupation and good sealing performance.
[0048] With reference to Figure 1 , the second sealing assembly 6 is arranged between the piston body 21 and the shell 1, that is, between the inner side wall of the piston body 21 and the outer cylinder 13. The second sealing assembly 6 is arranged to improve the sealing performance between the piston body 21 and the outer cylinder 13, so as to avoid the communication between the first chamber 11 and the second chamber 12.
[0049] With reference to Figure 1 and Figure 3 , specifically, the second sealing assembly 6 comprises a second Y-shaped sealing ring 61 and a third Y-shaped sealing ring 62, and the outer side wall of the piston body 21 is provided with a fourth sealing groove and a fifth sealing groove in the axial direction, the second Y-shaped sealing ring 61 is clamped in the fourth sealing groove, and the third Y-shaped sealing ring 62 is clamped in the fifth sealing groove. The second Y-shaped sealing ring 61 and the third Y-shaped sealing ring 62 arranged in sequence coaxially make the second sealing assembly 6 have good sealing effect.
[0050] With reference to Figure 1 , Figure 4 and Figure 6The end cover 14 is provided with a vent hole 141 which is in communication with the second chamber 12. In this embodiment, the compressible fluid in the third chamber 31 is air, and the second chamber 12 is in communication with the outside air through the vent hole 141, so that the pressure in the second chamber 12 is equal to the atmospheric pressure. When the air in the third chamber 31 leaks, the leaked air can enter the outside air through the vent hole 141 and be discharged, avoiding contact with the product.
[0051] Embodiment 2
[0052] With reference to Figure 1 , this embodiment is similar to Embodiment 1, and discloses a double-layer leak-proof accumulator, which comprises a shell 1 having an inner cavity, a piston assembly 2 is sealingly and slidably connected in the shell 1 to divide the inner cavity into a first chamber 11 and a second chamber 12, the first chamber 11 is used to communicate with fluid products, and a sleeve 3 connected with the shell 1 is arranged in the second chamber 12, one end of the piston assembly 2 towards the second chamber 12 is sealingly and slidably connected in the sleeve 3 to form a sealed third chamber 31 in the sleeve 3, and the third chamber 31 is used to contain a compressible fluid.
[0053] The difference between this embodiment and Embodiment 1 is that, with reference to Figure 4 and Figure 6 , the end cover 14 is provided with a connecting hole 142 on one side of the third chamber 31, and the connecting hole 142 is used to connect a pressure gauge for detecting the pressure in the third chamber 31. By connecting the pressure gauge through the connecting hole 142, the pressure value in the third chamber 31 can be detected to monitor the use state of the accumulator.
[0054] Embodiment 3
[0055] With reference to Figure 1 , this embodiment is similar to Embodiment 1 or Embodiment 2, and discloses a double-layer leak-proof accumulator, which comprises a shell 1 having an inner cavity, a piston assembly 2 is sealingly and slidably connected in the shell 1 to divide the inner cavity into a first chamber 11 and a second chamber 12, the first chamber 11 is used to communicate with fluid products, and a sleeve 3 connected with the shell 1 is arranged in the second chamber 12, one end of the piston assembly 2 towards the second chamber 12 is sealingly and slidably connected in the sleeve 3 to form a sealed third chamber 31 in the sleeve 3, and the third chamber 31 is used to contain a compressible fluid.
[0056] The difference between this embodiment and Embodiment 1 is that, with reference to Figure 4 and Figure 6The end cover 14 is provided with an air inlet 143 and an air outlet 144 which are communicated with the third chamber 31, the air inlet 143 is used to connect an air inlet valve, and the air outlet 144 is used to connect an air outlet valve. The air inlet valve can be connected to the air inlet 143 and connected to an external air source device, so that the third chamber 31 can be inflated. The air outlet valve can be connected to the air outlet 144, so that the gas in the third chamber 31 can be discharged. In the general use state, the air inlet 143 and the air outlet 144 are in a closed state, and the corresponding air inlet or air outlet is opened when needed.
[0057] Reference Figure 1 The spare mounting port 147 is communicated with the third chamber 31, and is used to connect other devices which can be needed, such as sensors and controllers. When not used or connected, the spare mounting port 147 is still closed, so as to prevent the air in the third chamber 31 from leaking.
[0058] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, all the embodiments are not exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A double-leakage-proof accumulator, characterized by: The utility model provides a kind of piston assembly and sleeve for fluid product, including the shell (1) with inner cavity, the piston assembly (2) is sealingly slidably connected in the shell (1) to divide the inner cavity into first chamber (11) and second chamber (12), the first chamber (11) is used to communicate fluid product, the sleeve (3) is equipped in the second chamber (12) and is connected with the shell (1), one end of the piston assembly (2) towards the second chamber (12) is sealingly slidably connected in the sleeve (3) to form airtight third chamber (31) in the sleeve (3), and the third chamber (31) is used to contain compressible fluid.
2. The dual leak-proof accumulator of claim 1, wherein: The piston assembly (2) includes detachably connected piston body (21) and movable rod (22), the piston body (21) is sealingly slidably connected with the inner side wall of the shell (1), and the movable rod (22) is sealingly slidably connected with the inner side wall of the sleeve (3).
3. The dual leak-proof accumulator of claim 2, wherein: The sleeve (3) is coaxially connected with sealing ring (4) at one end towards the piston assembly (2), the movable rod (22) is connected through the sealing ring (4), and a first sealing assembly (5) is arranged between the sealing ring (4) and the movable rod (22).
4. The dual leak-proof accumulator of claim 3, wherein: The first sealing assembly (5) includes first O-shaped sealing ring (51), second O-shaped sealing ring (52) and first Y-shaped sealing ring (53) arranged in sequence from bottom to top, the inner side wall of the sealing ring (4) is sequentially provided with first sealing groove, second sealing groove and third sealing groove in the axial direction from bottom to top, the first O-shaped sealing ring (51) is clamped in the first sealing groove, the second O-shaped sealing ring (52) is clamped in the second sealing groove, and the first Y-shaped sealing ring is clamped in the third sealing groove.
5. The dual leak-proof accumulator of claim 2, wherein: The second sealing assembly (6) is arranged between the piston body (21) and the shell (1).
6. The dual leak-proof accumulator of claim 5, wherein: The second sealing assembly (6) includes second Y-shaped sealing ring (61) and third Y-shaped sealing ring (62), and the outer side wall of the piston body (21) is provided with fourth sealing groove and fifth sealing groove in the axial direction, the second Y-shaped sealing ring (61) is clamped in the fourth sealing groove, and the third Y-shaped sealing ring (62) is clamped in the fifth sealing groove.
7. The dual leak-proof accumulator of claim 1, wherein: The shell (1) includes outer cylinder body (13) and end cover (14), one end of the outer cylinder body (13) is detachably connected with the end cover (14), the other end of the outer cylinder body (13) is provided with interface (15) for communicating fluid product, and the sleeve (3) is connected on the end cover (14).
8. The dual stage leak proof accumulator of claim 7, wherein: The end cover (14) is provided with air hole (141) communicated with the second chamber (12).
9. The dual leak-proof accumulator of claim 7, wherein: The end cover (14) is provided with connecting hole (142) on one side of the third chamber (31), and the connecting hole (142) is used for connecting pressure gauge for detecting pressure in the third chamber (31).
10. The dual leak-proof accumulator of claim 7, wherein: The end cover (14) is provided with air inlet (143) and air outlet (144) communicated with the third chamber (31), the air inlet (143) is used for connecting air inlet valve, and the air outlet (144) is used for connecting air outlet valve.