Flexible liquefied air energy storage rock breaking device filled in hole
By designing flexible energy storage tubes and modular adsorption filling components, the problems of flexibility and assembly efficiency of liquefied air rock breaking devices have been solved, enabling efficient rock breaking that can adapt to blasting holes of different depths and reducing transportation and storage costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA GEZHOUBA GROUP CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-08
AI Technical Summary
Existing liquefied air rock-breaking devices lack flexibility, making it difficult to adapt to the needs of blasting holes of different depths, and have high transportation and storage costs.
It adopts a flexible energy storage tube, a liquid injection tube, an initiator, and multiple adsorption filling components. The flexible energy storage tube can be bent to adapt to complex geological channels, and the adsorption filling components are modularly designed for on-site assembly and liquid injection.
It improves the flexibility and on-site assembly efficiency of rock breaking devices, reduces transportation and storage costs, and enhances safety and adaptability.
Smart Images

Figure CN224215963U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rock-breaking device technology, and in particular to a flexible liquefied air energy storage rock-breaking device filled with in-hole material. Background Technology
[0002] Liquefied air rock breaking technology is a method that involves compressing and cooling air into a liquid state, injecting it into a specially designed rock breaking device, filling it into a pre-drilled blast hole, and then using an excitation device to heat the liquefied air, causing it to rapidly vaporize and expand, thereby breaking the rock.
[0003] In practice, depending on the different geological conditions at the site, it is necessary to drill blasting holes of different depths and fill these holes with liquefied air rock-breaking devices of the appropriate specifications. The length of the container is prefabricated according to the depth of the blasting hole.
[0004] When using liquefied air (LIB) rock breaking, drilling and blasting are required based on the site's geological conditions. During this blasting process, blasting holes of varying depths need to be drilled at different locations. To improve blasting efficiency, LIB rock breaking devices of different specifications need to be filled into these holes at different depths. The required dimensions of these devices vary significantly; deeper holes can reach 10 meters in length, necessitating corresponding 10-meter-long devices. Existing LIB rock breaking devices are typically prefabricated components of standard dimensions, resulting in poor flexibility in use. Furthermore, transporting large quantities of prefabricated LIB rock breaking devices poses significant risks. Therefore, using prefabricated LIB rock breaking devices cannot meet the needs of blasting holes at different depths, requiring large inventories of devices of various specifications, leading to high costs and low efficiency. Therefore, to increase the adoption of LIB rock breaking devices, a flexible LIB energy storage rock breaking device is needed that is flexible in use, can be injected on-site, and can be quickly assembled. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a flexible liquefied air energy storage rock breaking device filled in the hole, which can quickly adjust the length according to the needs, and can be injected with liquid and quickly assembled on site.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model provides a flexible liquefied air energy storage rock breaking device filled in the hole, including an injection pipe, an initiator and multiple adsorption filling components, wherein it also includes an axially flexible energy storage pipe that is flexible in a non-explosive state, and the flexible energy storage pipe is a long strip-shaped bag with one end closed and the other end open.
[0007] In the preferred embodiment, the detonator includes a detonating head and an ignition bridge wire. The detonating head is connected to a detonation control wire and is located at the open end of the flexible energy storage tube.
[0008] The ignition bridge wire is a resistance metal wire. One end of the ignition bridge wire is electrically connected to the detonator, and the other end extends along the axial direction of the injection tube into the flexible energy storage tube.
[0009] In a preferred embodiment, an annular connecting plate is also provided. The cross-section of the annular connecting plate is an I-shaped ring structure, and an annular groove is formed on its inner side. The outer walls of the detonating head and the injection tube are both embedded in the middle of the annular connecting plate.
[0010] The outer wall of the annular connecting plate forms an interference fit sealing surface with the open end of the flexible energy storage tube. A fixing tape is provided on the outside of the open end of the flexible energy storage tube. The open end of the flexible energy storage tube is fixed to the annular groove of the annular connecting plate by the fixing tape in a spiral winding manner.
[0011] In a preferred embodiment, each adsorption filling component includes a filling box, which is an axially through hollow cylindrical structure. A fixed cylinder is coaxially arranged inside the filling box, and an annular cavity is formed between the fixed cylinder and the inner wall of the filling box.
[0012] The fixing cylinder is a cylindrical structure. Both ends of the fixing cylinder extend through and to the openings at both ends of the filling box, forming an axially continuous series hole. Both the filling box and the fixing cylinder are made of cardboard.
[0013] The filling box is filled with an adsorbent material that disperses and adsorbs liquefied air. The adsorbent material is distributed in the annular cavity between the fixed cylinder and the inner wall of the filling box.
[0014] In the preferred embodiment, the adsorbent is a porous medium.
[0015] In the preferred embodiment, multiple filling boxes are disposed inside the flexible energy storage tube and are arranged coaxially in sequence inside the flexible energy storage tube along the axial direction of the injection tube.
[0016] The outer wall of the filling box abuts against the inner wall of the flexible energy storage tube, forming a radial support structure with a flexible columnar shape.
[0017] In a preferred embodiment, the filling box includes a lower shell and a cover. The lower shell is a cylindrical hollow structure, and a filling opening is provided at the upper end of the lower shell.
[0018] The cover is an openable disc-shaped structure that covers the filling opening of the lower shell. The cover has an upper clearance hole at the center.
[0019] The fixed cylinder has an upper clearance hole that passes through the cover at the top, and a lower clearance hole is provided at the bottom of the filling box. The upper clearance hole, lower clearance hole and series hole are coaxially arranged to form a coaxial through channel.
[0020] In the preferred embodiment, multiple overflow holes are distributed on both the outer wall of the filling box and the fixed cylinder.
[0021] In a preferred embodiment, the injection tube extends axially into the flexible energy storage tube, the upper end of the injection tube extends out of the open end of the flexible energy storage tube and is provided with an injection connector, the injection connector is also provided with a sealing cap, and the lower end of the injection tube passes through the series holes of multiple filling boxes and extends to the inside of the sealed end of the flexible energy storage tube.
[0022] In the preferred embodiment, a limiting cap is fitted at the lower end of the injection tube, and the outer diameter of the limiting cap is larger than the inner diameter of the series hole.
[0023] This utility model provides a flexible liquefied air energy storage rock-breaking device filled with internal cavity. Compared with the prior art, the combination of the above structures has the following advantages:
[0024] First, the rock-breaking device includes a flexible energy storage tube, a liquid injection tube, a detonator, and multiple adsorption and filling components. The flexible energy storage tube is a long, narrow bag. The liquid injection tube runs through all the adsorption and filling components and connects them in series. Each adsorption component includes a filling box and adsorption material. The detonating head of the detonator is located at the open end of the flexible energy storage tube. The ignition bridge wire of the detonator extends into the flexible energy storage tube. The open end of the flexible energy storage tube is sealed and fixed to the detonating head by a fastener. The liquid injection tube is used to inject liquefied air into the flexible energy storage tube. The adsorption and filling components can support the flexible energy storage tube and adsorb liquefied air. The detonator can heat the liquefied air in the flexible energy storage tube to ignite the liquefied air in the flexible energy storage tube, thereby achieving the rock-breaking effect. Furthermore, the device can be assembled on-site, and it can be filled with liquefied air after being inserted into the blast hole, which has the advantage of high safety.
[0025] Secondly, the rock-breaking device uses a flexible energy storage tube as a liquefied air container, which is highly portable. The flexible energy storage tube is easy to cut on site, and can be easily assembled into rock-breaking devices of different lengths to adapt to blasting holes of different depths. This can greatly improve the flexibility of the use of the rock-breaking device.
[0026] Third, the adsorption filling component of the rock-breaking device includes a filling box and adsorption material. The filling box can support the flexible energy storage tube, facilitating the injection of liquefied air into the flexible energy storage tube. Furthermore, the filling box can be modularly assembled in series and installed inside the flexible energy storage tube. This can greatly improve the on-site assembly efficiency of the rock-breaking device. Attached Figure Description
[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0028] Figure 1 This is a schematic diagram of the structure of the flexible liquefied air energy storage rock-breaking device filled with boreholes according to this utility model.
[0029] Figure 2 This is a utility model Figure 1 A cross-sectional view of the adsorption filling component in the image.
[0030] Figure 3 This is a schematic diagram of the installation structure of this utility model during operation;
[0031] Figure 4 This is a utility model Figure 1 Exploded view of the annular connecting plate in the middle;
[0032] Figure 5 This is a utility model Figure 4 Assembly diagram.
[0033] In the diagram: 1. Flexible energy storage tube; 2. Injection tube; 21. Injection connector; 22. Limiting cap; 3. Detonating head; 31. Ignition bridge wire; 4. Filler box; 41. Lower shell; 42. Cover; 43. Fixing cylinder; 44. Overflow hole; 5. Adsorbent material; 6. Fixing tape; 7. Bursting hole; 8. Filler material; 9. Annular connecting plate. Detailed Implementation
[0034] To better understand the purpose, structure, and function of this solution, the embodiments and features described herein can be combined with each other without conflict. The solution will now be described in detail with reference to the accompanying drawings and embodiments.
[0035] Please refer to Figures 1 to 5 The flexible liquefied air energy storage rock breaking device filled in the borehole in this embodiment includes a flexible energy storage pipe 1, an injection pipe 2, an initiator, and multiple adsorption filling components, which can be moderately bent axially in a non-explosive state to adapt to complex geological channels.
[0036] Further as Figure 1 As shown, the flexible energy storage tube 1 is a long strip-shaped bag with one end closed and the other end open; the flexible energy storage tube 1 can be a high-toughness plastic bag, whose tube wall has the ability to resist high pressure deformation, and is made of a high-elasticity material, used to contain liquefied air.
[0037] In this embodiment, each adsorption filling component includes a filling box 4. The filling box 4 has an axially extending series hole. The filling box is filled with adsorbent material 5. All filling boxes 4 are located within the flexible energy storage tube 1. Multiple filling boxes 4 are arranged vertically relative to each other and coaxially along the axial direction of the injection tube 2 within the flexible energy storage tube 1. The injection tube 2 passes through the series hole of all filling boxes 4. The axis of each filling box 4 coincides with the axis of the injection tube 2, thus connecting all filling boxes 4 in series to form a whole, facilitating the overall connection of all filling boxes 4. The liquefied air rock-breaking device is placed inside the flexible energy storage tube 1. The outer peripheral wall of the filling box 4 forms a tight contact with the inner wall of the flexible energy storage tube 1, forming a radial support structure that maintains the columnar shape of the device. This makes the rock-breaking device as a whole present a flexible columnar shape. The lower end of the injection tube 2 is open and located inside the flexible energy storage tube 1. The upper end of the injection tube 2 extends beyond the open end of the flexible energy storage tube 1. The filling box 4 can support the flexible energy storage tube, thus making the liquefied air energy storage rock-breaking device a appropriately flexible columnar structure, which facilitates its installation into the blast hole 7. The upper end of the injection tube 2 is provided with an injection connector 21, which is used to connect to the liquefied air injection device for injecting liquefied air. The injection connector 21 is also provided with a sealing cap, which is used to seal the upper end of the injection tube 2 after the liquefied air injection is completed.
[0038] When implementing Figure 3 As shown, when multiple filling boxes 4 are arranged coaxially along the injection pipe 2 and placed inside the flexible energy storage tube 1, the outer peripheral wall of each filling box 4 is in close contact with the inner wall of the energy storage tube. Through multi-point radial support, the flexible energy storage tube 1 maintains a stable columnar structure. Since the filling boxes 4 and the injection pipe 2 are connected by series holes, allowing for relative rotation, adjacent filling boxes 4 are allowed to deflect at a certain angle. This gives the entire device flexibility based on radial support, enabling it to adapt to irregular hole walls or curved paths in the blasting hole 7. This radial support structure ensures the stability of the liquefied air storage space while allowing the device to adjust its posture according to the duct shape, facilitating placement and positioning in deep or complex ducts, and improving the applicability of rock-breaking operations.
[0039] The detonator includes a detonating head 3 and an ignition bridge wire 31. The detonating head 3 is located at the open end of the flexible energy storage tube 1. One end of the ignition bridge wire 31 is fixed to the conductive terminal of the detonating head 3 by laser welding, forming a circuit connection with the detonating head 3. The other end extends along the axial direction of the injection tube 2 into the flexible energy storage tube 1. The end of the ignition bridge wire 31 maintains a small gap with the inner wall of the flexible energy storage tube 1 to ensure that the heat generated during ignition can effectively trigger the vaporization reaction of liquefied air.
[0040] Furthermore, the ignition bridge wire 31 is a resistance metal wire, or more specifically, a nickel-chromium alloy wire. When energized, the ignition bridge wire 31 can generate a temperature exceeding 600°C within 50-250 μs, thereby igniting the liquefied air within the flexible energy storage tube 1. A fixing component is provided on the outer side of the open end of the flexible energy storage tube 1, sealing and fixing the open end to the detonator head 3. A detonation control wire is connected to the detonator head 3. Under the control of the detonation control wire, the detonator head 3 can energize the ignition bridge wire 31. The ignition bridge wire 31 generates a high temperature, triggering the instantaneous vaporization and expansion of the liquefied air. This releases a shock wave through the overflow hole 44 on the outer wall of the filling box 4, achieving directional rock breaking and thus detonating the rock-breaking device.
[0041] like Figure 3 As shown, the flexible liquefied air energy storage rock-breaking device filled in the hole can be assembled on-site according to the corresponding depth of the rock-breaking hole. Specifically, after determining the length of the rock-breaking device, a certain length of flexible energy storage tube 1 is first cut out, and one end of the cut flexible energy storage tube 1 is sealed; the corresponding number of adsorption filling components are connected in series using the injection pipe 2; the connected adsorption filling components are placed inside the adsorption filling components; the detonator is installed; and the open end of the flexible energy storage tube 1 is sealed and fixed to the detonator head 3 and the injection pipe 2 using fasteners; the flexible energy storage tube 1 is placed into the rock-breaking hole; the injection connector 21 and the liquefied air injection device are connected, and the liquefied air injection device injects liquefied air into the flexible energy storage tube 1; the upper end of the rock-breaking hole is sealed with filling material 8 (soil or gravel); finally, the rock-breaking device is detonated to complete the rock-breaking process.
[0042] Specifically, the rock-breaking device can be filled with liquefied air after being inserted into the blast hole 7, which has the advantage of high safety. In addition, it uses a flexible energy storage tube as a liquefied air container, which is highly portable. Furthermore, the flexible energy storage tube is easy to cut on site, and rock-breaking devices of different lengths can be easily assembled to adapt to blast holes 7 of different depths, which can greatly improve the flexibility of the use of the rock-breaking device.
[0043] The adsorption filling component of the rock breaking device includes a filling box 4 and an adsorption material 5. The filling box 4 can support the flexible energy storage tube, which facilitates the injection of liquefied air into the flexible energy storage tube. The filling box 4 can be modularly assembled in series and installed into the flexible energy storage tube, which can greatly improve the on-site assembly efficiency of the rock breaking device.
[0044] In a preferred embodiment, such as Figure 4 , 5As shown, an annular connecting plate 9 is also provided. The cross-section of the annular connecting plate 9 is an I-shaped ring structure, and an annular groove is formed on its inner side. The outer walls of the detonating head 3 and the injection tube 2 are fixed in the middle area of the annular connecting plate 9, forming a tight rigid connection between the two and the annular connecting plate 9 to prevent loosening due to vibration or external force during operation. The annular connecting plate 9 is inserted into the open end of the flexible energy storage tube 1, so that the inner wall of the open end of the flexible tube 1 and the inner wall of the annular groove achieve a preliminary seal through interference contact. Then, the open end of the flexible energy storage tube 1 is further folded outward and covers the outer edge of the annular groove. The fixing component uses fixing tape 6, and the open end of the folded flexible energy storage tube 1 is tightly bound to the annular groove of the annular connecting plate 9 by spiral winding the fixing tape 6. The winding direction of the fixing tape 6 extends along the axial direction of the annular connecting plate 9, covering the entire length of the annular groove, forming a continuous pressure sealing band. The flexible energy storage tube 1 and the annular groove form a physical sealing layer. Combined with the spiral winding pressure of the fixing tape 6, the leakage path of liquefied air is effectively blocked. The fixing tape 6 can conveniently and quickly seal the open end of the flexible energy storage tube 1, avoiding the complicated operation of traditional threading or welding processes, and improving on-site construction efficiency.
[0045] In a preferred embodiment, such as Figure 2 As shown, the adsorbent material 5 is a porous material made of paper or straw. The porous structure of the adsorbent material 5 can disperse and adsorb liquefied air, which can improve the stability of liquefied air explosion.
[0046] Specifically, the adsorbent material 5 adsorbs liquefied air through its porous structure, preventing the liquid medium from flowing freely within the flexible energy storage tube 1 and ensuring the uniformity of the explosion energy distribution.
[0047] In a preferred embodiment, the filling box 4 is a hollow cylindrical box, and a fixing cylinder 43 is provided inside the filling box 4. The fixing cylinder 43 is coaxially arranged with the filling box 4, and the fixing cylinder 43 has a cylindrical structure. Both ends of the fixing cylinder 43 extend through and to the openings at both ends of the filling box 4, forming an axially through series hole. The series hole is located inside the fixing cylinder 43, and an annular cavity is formed between the fixing cylinder 43 and the inner wall of the filling box 4.
[0048] The filling box 4 includes a lower shell 41 and a cover 42. The upper end of the lower shell 41 is provided with a filling opening, which allows the filling box 4 to be filled with adsorbent material 5. The adsorbent material 5 is distributed in the annular cavity between the fixed cylinder 43 and the inner wall of the filling box 4. The adsorbent material 5 efficiently absorbs and stores the low-temperature gas in the liquefied air through capillary action and physical adsorption mechanism. At the same time, its porous structure can evenly distribute the pressure and prevent local overheating or leakage during explosion.
[0049] The cover 42 covers the filling opening of the lower housing 41. The cover 42 is provided with an upper clearance hole, and the upper end of the fixed cylinder 43 passes through the upper clearance hole on the cover 42.
[0050] The bottom of the filling box 4 is provided with a lower clearance hole, and the upper clearance hole, lower clearance hole, and series hole are coaxially arranged to form a coaxial through channel, so that the series hole passes through the entire filling box 4. Both the filling box 4 and the fixed cylinder 43 are made of cardboard. Liquefied air is injected into the flexible energy storage tube 1 through the injection pipe 2, and diffuses into the annular cavity of the filling box 4 through the lower opening of the injection pipe 2. The filling box 4 has the advantages of low cost and modular assembly.
[0051] During implementation, the filling box 4 is quickly assembled with the injection tube 2 through the series hole, supporting on-site adjustment of the quantity as needed to adapt to different blast hole depths.
[0052] In a preferred embodiment, multiple overflow holes 44 are distributed on the outer wall of the filling box 4 and the fixed cylinder 43. The overflow holes 44 are circular through holes with the same diameter. The overflow holes 44 can allow the liquefied air in the plastic bag to flow into the filling box 4 quickly, so that it can be fully adsorbed by the adsorbent material 5, thereby improving the absorption efficiency of the liquefied air and helping to achieve a more uniform energy release.
[0053] When implementing Figure 2 As shown, the filling box 4 fills the hollow cavity with adsorbent material 5 through the filling opening of the lower shell 41, and then seals the filling opening through the cover 42 to form a complete adsorption unit. The top end of the fixed cylinder 43 passes through the upper clearance hole of the cover 42 and is fixed to the cover 42, and its bottom end extends into the interior of the lower shell 41, so that the axis of the fixed cylinder 43 coincides with the axis of the filling box 4. The upper clearance hole, the lower clearance hole and the series hole of the fixed cylinder 43 are coaxially arranged to ensure that the injection pipe 2 can smoothly pass through all the filling boxes 4 along the axial direction to form a series structure. When liquefied air is injected into the flexible energy storage pipe 1 through the injection pipe 2, the liquefied air will first gather in the fixed cylinder. Inside the 43, some liquefied air permeates into the adsorbent material 5 through the overflow hole 44 on the outer wall of the filling box 4 and the fixed cylinder 43, and then fully contacts the adsorbent material 5 filled in the annular cavity. The porous structure of the adsorbent material 5 enables dispersed storage. At the same time, the rigid frame of the fixed cylinder 43 and the filling box 4 ensures the axial positioning accuracy of the injection pipe 2 through the coaxially set clearance holes and series holes, so that multiple filling boxes 4 form a stable support array along the injection pipe 2, maintaining the columnar shape of the flexible energy storage tube 1. When the detonator is triggered, the uniformly distributed liquefied air can rapidly undergo phase change and expand, generating more powerful and uniform rock-breaking energy and improving the rock-breaking effect.
[0054] In a preferred embodiment, a limiting cap 22 is fitted at the lower end of the injection tube 2. The outer diameter of the limiting cap 22 is larger than the inner diameter of the series hole. The limiting cap 22 can prevent the adsorption filling component from falling from the lower end of the injection tube 2, which facilitates the series assembly of the adsorption filling component by the injection tube 2.
[0055] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this application.
[0056] Where there is no conflict, the above embodiments and features described herein can be combined with each other.
[0057] To enable those skilled in the art to better understand the present invention, the above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.
[0058] It should also be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein.
Claims
1. A flexible liquefied air energy storage rock-breaking device filled in a borehole, comprising an injection pipe (2), an initiator, and multiple adsorption and filling components, characterized in that, It also includes a flexible energy storage tube (1) that is axially flexible in a non-explosive state. The flexible energy storage tube (1) is a long strip-shaped bag that is closed at one end and open at the other.
2. The flexible liquefied air energy storage rock-breaking device filled with borehole according to claim 1, characterized in that, The detonator includes a detonating head (3) and an ignition bridge wire (31). The detonating head (3) is connected to a detonation control wire and is located at the open end of the flexible energy storage tube (1). The ignition bridge wire (31) is a resistive metal wire. One end of the ignition bridge wire (31) is electrically connected to the detonator (3), and the other end extends along the axial direction of the injection tube (2) into the flexible energy storage tube (1).
3. The flexible liquefied air energy storage rock-breaking device filled with borehole according to claim 2, characterized in that, It is also provided with an annular connecting plate (9), the cross-section of which is an I-shaped ring structure, and an annular groove is formed on its inner side. The outer walls of the detonator (3) and the injection tube (2) are both embedded in the middle of the annular connecting plate (9). The outer wall of the annular connecting plate (9) forms an interference fit sealing surface with the open end of the flexible energy storage tube (1). A fixing tape (6) is provided on the outer side of the open end of the flexible energy storage tube (1). The open end of the flexible energy storage tube (1) is fixed to the annular groove of the annular connecting plate (9) by the fixing tape (6) in a spiral winding manner.
4. The flexible liquefied air energy storage rock-breaking device filled with borehole according to claim 1, characterized in that, Each adsorption filling component includes a filling box (4), which is an axially through hollow cylindrical structure. A fixed cylinder (43) is coaxially provided inside the filling box (4), and an annular cavity is formed between the fixed cylinder (43) and the inner wall of the filling box (4). The fixed cylinder (43) is a cylindrical structure. Both ends of the fixed cylinder (43) extend through and to the openings at both ends of the filling box (4), forming an axially continuous series hole. Both the filling box (4) and the fixed cylinder (43) are made of cardboard. The filling box (4) is filled with an adsorbent material (5) that disperses and adsorbs liquefied air. The adsorbent material (5) is distributed in the annular cavity between the fixed cylinder (43) and the inner wall of the filling box (4).
5. The flexible liquefied air energy storage rock-breaking device filled with borehole according to claim 4, characterized in that, The adsorbent material (5) is a porous medium material.
6. The flexible liquefied air energy storage rock-breaking device filled with borehole according to any one of claims 4 or 5, characterized in that, Multiple filling boxes (4) are located inside the flexible energy storage tube (1) and are arranged coaxially in the flexible energy storage tube (1) along the axial direction of the injection tube (2); The outer wall of the filling box (4) abuts against the inner wall of the flexible energy storage tube (1) to form a radial support structure in the form of a flexible column.
7. The flexible liquefied air energy storage rock-breaking device filled with borehole according to claim 6, characterized in that, The filling box (4) includes a lower shell (41) and a cover (42). The lower shell (41) is a cylindrical hollow structure, and the upper end of the lower shell (41) is provided with a filling opening. The cover (42) is an openable disc-shaped structure. The cover (42) covers the filling opening of the lower shell (41). The cover (42) has an upper clearance hole at the center. The upper end of the fixed cylinder (43) passes through the upper clearance hole on the cover (42), and the bottom of the filling box (4) is provided with a lower clearance hole. The upper clearance hole, the lower clearance hole and the series hole are coaxially arranged to form a coaxial through channel.
8. The flexible liquefied air energy storage rock-breaking device filled with borehole according to claim 7, characterized in that, Multiple overflow holes (44) are distributed on the outer wall of the filling box (4) and the fixed cylinder (43).
9. The flexible liquefied air energy storage rock-breaking device filled with borehole according to claim 4, characterized in that, The injection tube (2) extends axially into the flexible energy storage tube (1). The upper end of the injection tube (2) extends out of the open end of the flexible energy storage tube (1) and is provided with an injection connector (21). The injection connector (21) is also provided with a sealing cap. The lower end of the injection tube (2) passes through the series holes of multiple filling boxes (4) and extends to the inside of the sealed end of the flexible energy storage tube (1).
10. The flexible liquefied air energy storage rock-breaking device filled with borehole according to claim 9, characterized in that, The lower end of the injection tube (2) is fitted with a limiting cap (22), the outer diameter of which is larger than the inner diameter of the series hole.