CN212409501U - Flexible fracturing pipe blasting device for gas expansion blasting - Google Patents
Flexible fracturing pipe blasting device for gas expansion blasting Download PDFInfo
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- CN212409501U CN212409501U CN202021696395.0U CN202021696395U CN212409501U CN 212409501 U CN212409501 U CN 212409501U CN 202021696395 U CN202021696395 U CN 202021696395U CN 212409501 U CN212409501 U CN 212409501U
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Abstract
The utility model discloses a gas inflation blasting flexibility send and splits a pipe blast apparatus, send the burst pipe including flexibility, flexibility send the burst pipe including flexible body, flexibility send the burst pipe still including be used for to fill the inflation head of blasting medium in the flexible body, the inflation head is located the one end of flexible body, the inflation head is kept away from the one end of flexible body is used for connecting the gas tube, just the inflation head switch-on the inner space of flexible body, the gas tube is used for being connected with outside air supply. The utility model provides a flexible fracturing pipe utilizes the inflation head to pack the blasting medium in the big gun hole to flexible body intussuseption, has improved the safety in utilization of fracturing pipe. The fracturing pipe is good in 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 blasting device.
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 carbon dioxide cracking tube commonly used in the market at present is an outer-hole inflation cracking tube, and when the carbon dioxide cracking tube is used on site, the carbon dioxide cracking tube is firstly inflated outside a hole, then is connected and installed, and is placed in the hole for detonation. If the pipe body is cracked due to leakage of the cracking pipe in the connecting installation or placing process, safety accidents are easily caused, and the safety of field workers cannot be guaranteed; and the tube is perforated after the inflation is finished, so that the tube is heavier when perforated, and the operation is not convenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas expansion blasting flexibility send and split a tub blasting device, aim at solving and adopt the hole to aerify the problem that causes the incident easily outward.
In order to achieve the purpose, the utility model provides a flexible fracturing pipe blasting device for gas expansion blasting, which comprises a flexible fracturing pipe;
the flexible fracturing pipe comprises a flexible pipe body;
the flexible fracturing pipe further comprises an inflation head used for filling blasting media into the flexible pipe body, the inflation head is arranged at one end of the flexible pipe body, one end, far away from the flexible pipe body, of the inflation head is used for being connected with an inflation pipe, the inflation head is communicated with the inner space and the outer space of the flexible pipe body, and the inflation pipe is used for being connected with an external air supply source.
Preferably, one end of the flexible pipe body is connected with a filling head, the filling head is provided with the inflation 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, an inflation through hole communicated with the inner space and the outer space of the flexible pipe body is formed in the filling head, an inflation valve communicated with the inner space and the outer space of the flexible pipe body is arranged in the inflation through hole, and an air inlet of the inflation valve is connected with the inflation head.
Preferably, the inflation valve is a one-way valve.
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, a tapered thread through hole is formed in the filling head and comprises a small-diameter end and a large-diameter end, the small-diameter end is provided with the excitation pipe, one end, far away from the filling head, of the excitation pipe is arranged in the inner cavity of the flexible fracturing pipe, and a tapered sealing plug is connected in the large-diameter end in a threaded fit mode.
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, an exhaust threaded through hole communicated with the inner space and the outer space of the flexible pipe body is formed in the sealing head, a safety valve communicated with the inner space and the outer space of the flexible pipe body is arranged in the exhaust threaded through hole, and one end, far away from the flexible pipe body, of the exhaust threaded through hole 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 utilizes the inflation head to fill the blasting medium in the blast hole into the flexible pipe body, thereby improving the use safety of the fracturing pipe; in addition, 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.
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:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
301 | Exhaust threaded through |
| 101 | Flexible pipe body | 4 | |
| 102 | Inflating |
5 | Inflation valve |
| 2 | Filling |
6 | |
| 201 | Inflatable through |
601 | |
| 202 | Tapered threaded through |
602 | |
| 2021 | Small diameter end | 7 | |
| 2022 | End of |
8 | |
| 3 | Sealing head | 9 | Hollow screw |
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 send and splits pipe blasting device.
The flexible fracturing pipe comprises a flexible fracturing pipe 1, wherein the flexible fracturing pipe 1 comprises a flexible pipe body 101, the flexible fracturing pipe 1 further comprises an inflating head 102 used for filling blasting media into the flexible pipe body 101, the inflating head 102 is arranged at one end of the flexible pipe body 101, one end, far away from the flexible pipe body 101, of the inflating head 102 is used for being connected with an inflating pipe, the inflating head 102 is communicated with the inner space and the outer space of the flexible pipe body 101, and the inflating pipe is used for being connected with an external air supply source.
The flexible fracturing pipe 1 utilizes the inflation head 2 to fill the flexible pipe body 101 with the blasting medium in the blast hole, so that the serious safety problem caused by the fact that the pressure inside the flexible pipe body 101 is increased due to external reasons when a mode of filling the blasting medium outside the blast hole is adopted is avoided, the use safety of the fracturing pipe is improved, and the flexible fracturing pipe is suitable for the field of geotechnical engineering blasting; in addition, the fracturing pipe 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 the 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 the one end of dress head 2 and be connected with sealed head 3, fill and be equipped with the switch-on the head 2 the inflation through-hole 201 of flexible pipe body 101 inner and outer space, be equipped with the switch-on in the inflation through-hole 201 the inflation valve 5 of flexible pipe body 101 inner and outer space, the air inlet of inflation valve 5 is connected with fill head 102, fill and be connected with on the head 2 and arouse pipe 6, arouse pipe 6 to keep away from fill the one end of dress head 2 and locate 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, the inflation valve 5 is a one-way valve.
The inflation valve 5 adopts a one-way valve to prevent the filled gas from reversely leaking, and the inflation efficiency is improved.
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 6, one end of the excitation tube 6, which is far away from the filling head 2, is arranged in the internal cavity of the flexible fracturing tube 1, a tapered sealing plug 7 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 601 of the excitation tube 6, and the minimum diameter of the tapered threaded through hole 202 is smaller than the diameter of the tube head 602 of the excitation tube 6.
After the excitation tube 6 is placed in the flexible tube body 101, the conical sealing plug 7 is used for blocking the conical threaded through hole 202, fixing the excitation tube 6 and preventing the excitation tube 6 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 602 of the excitation tube 6.
The technical scheme of the utility model, flexible body 101 encapsulation finishes the back, inflation head 102 passes through the gas tube and is connected with the external air supply source, fill earlier to filling in the flexible body 101 and predetermine a volume of liquid carbon dioxide, make the increase of pressure in the flexible body 101, flexible body 101 hardness increases, be convenient for carry out subsequent hole operation down, treat that flexible body 101 accomplishes down the hole, fill the back, continue to fill dress surplus liquid carbon dioxide, furthermore, because the effect of pore wall confined pressure, can form similar "coupling" structure after filling the dress and accomplishing, promote follow-up blasting effect, arouse 6 lines of powder charge and control its excitation, liquid carbon dioxide phase transition in the flexible body 101, intraductal pressure increases rapidly, flexible body 101 explodes, gaseous overflowing is to outer acting, thereby reach the purpose of broken rock mass.
In another embodiment, the sealing head 3 is formed with a vent screw through hole 301 communicating with the inner space and the outer space of the flexible pipe body 101, a safety valve 8 communicating with the inner space and the outer space of the flexible pipe body 101 is arranged in the vent screw through hole 301, and one end of the vent screw through hole 301 far away from the flexible pipe body 101 is connected with a hollow screw 9 through screw thread fit.
Specifically, the inner diameter of the vent threaded through hole 301 is larger than the inner hole diameter of the hollow screw 9.
Preferably, the inner diameter of the exhaust threaded through hole 301 is 2 mm.
Preferably, the screw inner hole of the hollow screw 9 is 1 mm.
The safety pressure of the safety valve 8 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 8, the safety valve 8 is conducted, and the gas in the pipe is discharged from a screw inner hole of the hollow screw 9 to reduce the pressure in the pipe, so that the safety of the gas expansion blasting flexible fracturing pipe blasting device during use is ensured; after the pressure in the pipe is reduced to be lower than the preset safety value of the safety valve 8, the channel of the safety valve 8 is closed, and sealing is realized again.
In another embodiment, a plurality of flexible fracturing tubes 1 form a connecting tube through other related devices, a preset amount of liquid carbon dioxide can be injected into the flexible tube 101, after the flexible tube 101 has enough hardness, 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 flexible tube 101 is continuously filled with the liquid carbon dioxide through an inflation tube, 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 the blasting operation.
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 blasting device for gas expansion blasting is characterized by comprising a flexible fracturing pipe (1);
the flexible fracturing pipe (1) comprises a flexible pipe body (101);
the flexible cracking tube (1) further comprises an inflation head (102) used for filling blasting media into the flexible tube body (101), the inflation head (102) is arranged at one end of the flexible tube body (101), one end, far away from the flexible tube body (101), of the inflation head (102) is used for being connected with an inflation tube, the inflation head (102) is communicated with the inner space and the outer space of the flexible tube body (101), and the inflation tube is used for being connected with an external air supply source.
2. The gas expansion blasting flexible fracturing pipe blasting device according to claim 1, wherein one end of the flexible pipe body (101) is connected with an inflating head (2), the inflating head (102) is arranged on the inflating head (2), and one end of the flexible pipe body (101) far away from the inflating head (2) is connected with a sealing head (3).
3. A gas expansion blasting flexible fracturing pipe bursting apparatus as claimed in claim 2 in which at least one of the charging head (2) and the sealing head (3) is fixedly connected to the flexible pipe body (101) by a clamp (4).
4. The gas expansion blasting flexible fracturing pipe blasting device according to claim 2, wherein an inflation through hole (201) communicating the inner space and the outer space of the flexible pipe body (101) is formed in the filling head (2), 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), and an air inlet of the inflation valve (5) is connected with the filling head (102).
5. The gas expansion blasting flexible fracturing pipe blasting device of claim 4, wherein the inflation valve (5) is a one-way valve.
6. The gas expansion blasting flexible fracturing pipe blasting device according to claim 2, wherein the filling head (2) is connected with an excitation pipe (6), and one end of the excitation pipe (6) 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 blasting device according to claim 6, wherein the filling head (2) is formed 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 (6), one end of the exciting pipe (6) 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 connected with a conical sealing plug (7) in a threaded fit manner.
8. The gas expansion blasting flexible fracturing pipe bursting apparatus of claim 7 wherein the minimum diameter of the tapered threaded through hole (202) is greater than the diameter of the body (601) of the activation pipe (6) and the minimum diameter of the tapered threaded through hole (202) is less than the diameter of the head (602) of the activation pipe (6).
9. The gas expansion blasting flexible fracturing pipe blasting device according to claim 2, wherein the sealing head (3) is formed with a vent threaded through hole (301) communicating the inner space and the outer space of the flexible pipe body (101), a safety valve (8) communicating the inner space and the outer space of the flexible pipe body (101) is arranged in the vent threaded through hole (301), and one end of the vent threaded through hole (301) far away from the flexible pipe body (101) is connected with a hollow screw (9) through thread fit.
10. The gas expansion blasting flexible fracturing pipe bursting apparatus of any one of claims 1 to 9 wherein the flexible pipe body (101) is a polymeric pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021696395.0U CN212409501U (en) | 2020-08-14 | 2020-08-14 | Flexible fracturing pipe blasting device for gas expansion blasting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021696395.0U CN212409501U (en) | 2020-08-14 | 2020-08-14 | Flexible fracturing pipe blasting device for gas expansion blasting |
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| CN212409501U true CN212409501U (en) | 2021-01-26 |
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|---|---|---|---|
| CN202021696395.0U Active CN212409501U (en) | 2020-08-14 | 2020-08-14 | Flexible fracturing pipe blasting device for gas expansion blasting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854538A (en) * | 2020-08-14 | 2020-10-30 | 葛洲坝易普力(湖南)科技有限公司 | Flexible fracturing pipe blasting device for gas expansion blasting and using method thereof |
| CN114184090A (en) * | 2021-12-16 | 2022-03-15 | 方莹 | Flexible fracturing device filled in hole and using method thereof |
-
2020
- 2020-08-14 CN CN202021696395.0U patent/CN212409501U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854538A (en) * | 2020-08-14 | 2020-10-30 | 葛洲坝易普力(湖南)科技有限公司 | Flexible fracturing pipe blasting device for gas expansion blasting and using method thereof |
| CN114184090A (en) * | 2021-12-16 | 2022-03-15 | 方莹 | Flexible fracturing device filled in hole and using method thereof |
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