CN212409502U - Flexible fracturing pipe for gas expansion blasting - Google Patents
Flexible fracturing pipe for gas expansion blasting Download PDFInfo
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- CN212409502U CN212409502U CN202021696396.5U CN202021696396U CN212409502U CN 212409502 U CN212409502 U CN 212409502U CN 202021696396 U CN202021696396 U CN 202021696396U CN 212409502 U CN212409502 U CN 212409502U
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Abstract
The utility model discloses a gas inflation blasting flexibility fracturing pipe, including flexibility fracturing pipe, flexibility fracturing pipe includes the flexible body, be used for filling blasting medium in the flexible body. The flexible fracturing pipe has good flexibility, can be folded and bent in the transportation process, and is convenient to transport; the flexible fracturing pipe is light in weight, convenient to operate on site and capable of improving working efficiency.
Description
Technical Field
The utility model relates to a send and split the pipe field, concretely relates to gas expansion blasting flexibility sends and splits pipe.
Background
The carbon dioxide expansion blasting technology is a rock breaking method mainly based on physical explosion, an expansion blasting device of the carbon dioxide expansion blasting technology mainly comprises an internal exciting pipe, an external fracturing pipe and supercritical carbon dioxide (higher than 7.38MPa) filled in the internal exciting pipe and the external fracturing pipe, and the technical principle is as follows: the exciting tube is installed in the main tube body, when the exciting current is conducted, the electric ignition head ignites, the heating powder is ignited and rapidly burns to release a large amount of heat, the temperature and the pressure in the cracking tube body are rapidly raised, and the dense-phase liquid CO is enabled to be in a liquid state2Quickly converting into gaseous supercritical state, and when the pressure in main pipe body breaks through the blocking action of energy-releasing end head rupture disk, supercritical state CO2The liquid-gas phase change is generated instantly, and high-pressure gas is formed and discharged from the energy discharge end to do work to the outside, thereby achieving the purpose of breaking rock mass.
The existing gas cracking tube uses a steel tube shell to ensure safety, so that the transportation and operation of the cracking tube are inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas inflation blasting flexibility is sent and is split pipe aims at solving current gas and sends and split the inconvenient problem of pipe transportation.
In order to achieve the above object, the utility model provides a gas expansion blasting flexible fracturing pipe which comprises a flexible fracturing pipe;
the flexible fracturing pipe comprises a flexible pipe body, and blasting media are filled in the flexible pipe body.
Preferably, one end of the flexible pipe body is connected with a filling head, and one end of the flexible pipe body, which is far away from the filling head, is connected with a sealing head.
Preferably, at least one of the filling head and the sealing head is fixedly connected to the flexible pipe body by a clamp.
Preferably, the filling head is provided with an inflation through hole communicated with the inner space and the outer space of the flexible pipe body, and an inflation valve communicated with the inner space and the outer space of the flexible pipe body is arranged in the inflation through hole.
Preferably, the air inlet of the inflation valve is provided with a first sealing ring, and the air outlet of the inflation valve is provided with a second sealing ring.
Preferably, the filling head is connected with an excitation tube, and one end of the excitation tube, which is far away from the filling head, is arranged in the inner chamber of the flexible tube body.
Preferably, be equipped with toper screw thread through-hole on the filling head, toper screw thread through-hole includes minor diameter end, major diameter end, minor diameter end is equipped with arouse the pipe, arouse the pipe and keep away from the one end of filling the head is located the interior cavity of flexible fracturing pipe, be connected with the toper sealing plug through screw-thread fit in the major diameter end.
Preferably, the minimum diameter of the tapered threaded through hole is larger than the diameter of the tube body of the excitation tube, and the minimum diameter of the tapered threaded through hole is smaller than the diameter of the tube head of the excitation tube.
Preferably, the sealing head is provided with an exhaust thread through hole communicated with the inner space and the outer space of the flexible pipe body, a safety valve communicated with the inner space and the outer space of the flexible pipe body is arranged in the exhaust thread through hole, and one end of the exhaust thread through hole, far away from the flexible pipe body, is connected with a hollow screw in a threaded fit mode.
Preferably, the flexible pipe body is a polymer pipe.
In the technical scheme of the utility model, the flexible fracturing pipe has good flexibility, can be folded and bent during transportation, and is convenient for transportation; the flexible fracturing pipe is light in weight, convenient to operate on site and capable of improving working efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic sectional view of the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The utility model provides a gas expansion blasting flexibility fracturing pipe.
Referring to fig. 1, the gas expansion blasting flexible fracturing pipe comprises a flexible fracturing pipe 1, wherein the flexible fracturing pipe 1 comprises a flexible pipe body 101, and the flexible pipe body 101 is filled with blasting media.
The flexible fracturing pipe 1 has good flexibility, can be folded and bent in the transportation process, and is convenient to transport; the flexible fracturing pipe 1 is light in weight, convenient to operate on site and capable of improving working efficiency.
Specifically, the one end of flexible pipe body 101 is connected with fills dress head 2, flexible pipe body 101 is kept away from fill dress head 2's one end is connected with sealed head 3, fill and be equipped with the switch-on the head 2 the inflation through-hole 201 of the interior outer space of flexible pipe body 101, be equipped with the switch-on in the inflation through-hole 201 the inflation valve 5 of the interior outer space of flexible pipe body 101, be connected with on the first 2 of filling and arouse the pipe 8, arouse the pipe 8 and keep away from fill dress head 2's one end is located the inside cavity of flexible pipe body 101.
Preferably, at least one of the filling head 2 and the sealing head 3 is fixedly connected to the flexible pipe body 101 by means of a collar 4.
The filling head 2 or the sealing head 3 can be tightly connected to the flexible pipe body 101 by means of the collar 4.
Preferably, the flexible pipe body 101 is a polymer pipe.
The flexible pipe body 101 is made of a high polymer material, so that metal residues are few after the flexible cracking pipe 1 is exploded, and the adverse effect of waste metal residues on the environment is reduced; compared with the traditional gas cracking pipe with the same volume, the hole wall of the flexible pipe body 101 made of the high polymer material is thinner, so that more liquid carbon dioxide can be filled in the pipe body, and the blasting effect is enhanced; the flexible cracking tube 1 has low production cost, and the cost of the tube body with the same model and specification is about one fourth of that of the traditional gas cracking tube; the flexible cracking pipe 1 has high strength, can bear pressure over 20Mpa and is far higher than pressure of 8-12Mpa of liquid carbon dioxide, and prevents the liquid carbon dioxide from leaking due to the breakage of the pipe body.
Preferably, a tapered threaded through hole 202 is formed in the filling head 2, the tapered threaded through hole 202 comprises a small-diameter end 2021 and a large-diameter end 2022, the small-diameter end 2021 is provided with the excitation tube 8, one end of the excitation tube 8, which is far away from the filling head 2, is arranged in the inner cavity of the flexible tube body 101, a tapered sealing plug 9 is connected in the large-diameter end 2022 in a threaded fit manner, the minimum diameter of the tapered threaded through hole 202 is greater than the diameter of the tube body 801 of the excitation tube 8, and the minimum diameter of the tapered threaded through hole 202 is smaller than the diameter of the tube head 802 of the excitation tube 8.
After the exciting tube 8 is placed in the flexible tube body 101, the conical sealing plug 9 is used for blocking the conical threaded through hole 202, fixing the exciting tube 8 and preventing the exciting tube 8 from being ejected out when the pressure in the tube body rises; the small diameter end 2021 of the tapered threaded through bore 202 is used to capture the tip 802 of the excitation tube 8.
Preferably, the inflation valve 5 is a one-way valve.
Preferably, a first sealing ring 6 is arranged at the air inlet of the inflation valve 5, and a second sealing ring 7 is arranged at the air outlet of the inflation valve 5.
The inflation valve 5 adopts a one-way valve to prevent the filled gas from reversely leaking, so that the inflation efficiency is improved; when the pressure in the pipe is increased, the sealing ring is pressed upwards, so that the sealing performance is enhanced.
The technical scheme of the utility model, flexible body 101 encapsulation finishes the back, through aerifing through-hole 201 and the inflation valve 5 liquid carbon dioxide of filling in to flexible body 101, place this gas expansion blasting flexibility fracturing pipe in the big gun hole again, make and arouse 8 lines of excitation pipe and control it and arouse, liquid carbon dioxide phase transition in the flexible body 101, the pressure in the pipe increases rapidly, when the intraductal pressure is greater than flexible body 101 and can bear pressure, flexible body 101 explodes and splits, gas spills over and does work to the outside, thereby reach the purpose of broken rock mass.
In another embodiment, the sealing head 3 is provided with an exhaust threaded through hole 301 communicating with the inner space and the outer space of the flexible pipe body 101, a safety valve 10 communicating with the inner space and the outer space of the flexible pipe body 101 is arranged in the exhaust threaded through hole 301, and one end of the exhaust threaded through hole 301, which is far away from the pipe body of the flexible pipe body 101, is connected with a hollow screw 11 through thread fit.
Specifically, the inner diameter of the vent threaded through hole 301 is larger than the inner hole diameter of the hollow screw 11.
Preferably, the inner diameter of the exhaust threaded through hole 301 is 2 mm.
Preferably, the screw inner hole of the hollow screw 11 is 1 mm.
The safety pressure of the safety valve 10 is preset to be 15-30 Mpa, when partial liquid carbon dioxide in the flexible pipe body 101 is subjected to phase change due to other external reasons, the pressure in the pipe rises, when the pressure is larger than the preset safety value of the safety valve 10, the safety valve 10 is conducted, the gas in the pipe is discharged from a screw inner hole of the hollow screw 11 to reduce the pressure in the pipe, and the safety of the gas in the process of expanding, blasting and flexibly cracking the pipe is ensured; and after the pressure in the pipe is reduced to be lower than the preset safety value of the safety valve 10, the passage of the safety valve 10 is closed, and sealing is realized again.
In another embodiment, the flexible fracturing tubes 1 form a connecting tube through other related devices, liquid carbon dioxide can be injected into the flexible tube body 101, the assembled connecting tube is placed in a blast hole according to specific requirements, a gap between the connecting tube and the blast hole is filled, the excitation tubes 8 in the flexible fracturing tubes 1 are connected in series through a lead, and are connected with a power supply and an external controller through the lead, and the excitation tubes 8 are triggered by the external controller to complete blasting.
The above is only the preferred embodiment of the present invention, not limiting the scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. The flexible fracturing pipe for gas expansion blasting is characterized by comprising a flexible fracturing pipe (1);
the flexible fracturing pipe (1) comprises a flexible pipe body (101), and blasting media are filled in the flexible pipe body (101).
2. The gas expansion blasting flexible fracturing pipe as claimed in claim 1, wherein one end of the flexible pipe body (101) is connected with a filling head (2), and one end of the flexible pipe body (101) far away from the filling head (2) is connected with a sealing head (3).
3. The gas expansion burst flexibilized fracturing tube of claim 2 wherein at least one of said filling head (2) and said sealing head (3) is fixedly connected to said flexible tube body (101) by means of a clamp (4).
4. The gas expansion blasting flexible fracturing pipe as claimed in claim 2, wherein the filling head (2) is provided with an inflation through hole (201) communicating the inner space and the outer space of the flexible pipe body (101), and an inflation valve (5) communicating the inner space and the outer space of the flexible pipe body (101) is arranged in the inflation through hole (201).
5. The gas expansion blasting flexible fracturing pipe as claimed in claim 4, wherein the gas inlet of the inflation valve (5) is provided with a first sealing ring (6), and the gas outlet of the inflation valve (5) is provided with a second sealing ring (7).
6. The gas expansion blasting flexible fracturing pipe as claimed in claim 2, wherein the filling head (2) is connected with an excitation pipe (8), and one end of the excitation pipe (8) far away from the filling head (2) is arranged in the inner cavity of the flexible pipe body (101).
7. The gas expansion blasting flexible fracturing pipe as recited in claim 6, wherein the filling head (2) is provided with a conical threaded through hole (202), the conical threaded through hole (202) comprises a small diameter end (2021) and a large diameter end (2022), the small diameter end (2021) is provided with the exciting pipe (8), one end of the exciting pipe (8) far away from the filling head (2) is arranged in the inner cavity of the flexible fracturing pipe (1), and the large diameter end (2022) is internally connected with a conical sealing plug (9) through thread fit.
8. The gas expanded blast flexible fracturing pipe of claim 7, wherein the minimum diameter of said tapered threaded through hole (202) is greater than the diameter of the body (801) of said activation pipe (8), and the minimum diameter of said tapered threaded through hole (202) is less than the diameter of the head (802) of said activation pipe (8).
9. The gas expansion blasting flexible fracturing pipe as claimed in claim 2, wherein the sealing head (3) is provided with a gas discharge threaded through hole (301) communicating the inner space and the outer space of the flexible pipe body (101), a safety valve (10) communicating the inner space and the outer space of the flexible pipe body (101) is arranged in the gas discharge threaded through hole (301), and one end of the gas discharge threaded through hole (301) far away from the flexible pipe body (101) is connected with a hollow screw (11) through thread fit.
10. The gas expanded explosive flexible fracturing tube as claimed in any one of claims 1 to 9, wherein said flexible tube body (101) is a polymer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021696396.5U CN212409502U (en) | 2020-08-14 | 2020-08-14 | Flexible fracturing pipe for gas expansion blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021696396.5U CN212409502U (en) | 2020-08-14 | 2020-08-14 | Flexible fracturing pipe for gas expansion blasting |
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| Publication Number | Publication Date |
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| CN212409502U true CN212409502U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021696396.5U Active CN212409502U (en) | 2020-08-14 | 2020-08-14 | Flexible fracturing pipe for gas expansion blasting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829399A (en) * | 2020-08-14 | 2020-10-27 | 葛洲坝易普力(湖南)科技有限公司 | Gas expansion blasting flexible fracturing pipe and using method thereof |
-
2020
- 2020-08-14 CN CN202021696396.5U patent/CN212409502U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829399A (en) * | 2020-08-14 | 2020-10-27 | 葛洲坝易普力(湖南)科技有限公司 | Gas expansion blasting flexible fracturing pipe and using method thereof |
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