CN212275225U - Carbon dioxide rock breaking dynamic pressure acquisition experimental device - Google Patents
Carbon dioxide rock breaking dynamic pressure acquisition experimental device Download PDFInfo
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- CN212275225U CN212275225U CN202021273323.5U CN202021273323U CN212275225U CN 212275225 U CN212275225 U CN 212275225U CN 202021273323 U CN202021273323 U CN 202021273323U CN 212275225 U CN212275225 U CN 212275225U
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Abstract
The utility model discloses a broken rock dynamic pressure acquisition experimental apparatus of carbon dioxide belongs to mining machinery engineering field, and the device includes the blasting cartridge, the blasting cartridge includes detonating mechanism (3) and feed mechanism (4), the blasting cartridge includes the storage shell (1) and the inboard cavity (2) of preserving in the outside, the fixed pressure sensor that is equipped with in the cavity (2) of preserving, pressure sensor passes through sensor connecting wire (18) connection and lies in data acquisition appearance (15) in the blasting cartridge outside. The utility model provides a lack the broken rock effect that causes to the broken rock dynamic pressure change research of carbon dioxide not good or the extravagant problem of raw materials, the device can gather research carbon dioxide combustion process pressure variation, easy operation, convenient to use in laboratory developments.
Description
Technical Field
The utility model belongs to the technical field of mining machinery engineering, concretely relates to broken rock dynamic pressure acquisition experimental apparatus of carbon dioxide.
Background
The exploration and exploitation of underground resources, broken rock is a technical requirement for tunneling, and common broken rock tunneling methods comprise blasting by explosives, hydraulic fracturing and the like. A recently emerging fracturing technique: the carbon dioxide combustion impact fracturing is convenient to transport and fill due to the fact that the carbon dioxide is stored stably, operation convenience and safety are greatly improved, engineering progress is effectively increased, and the carbon dioxide is being used more and more.
However, the arrangement of the initiation network is mostly carried out on the site according to experience in the current carbon dioxide rock breaking process, and the arrangement deviation degree of the initiation network is large due to the lack of research on the dynamic pressure change process of the carbon dioxide rock breaking process. If the number of the carbon dioxide rock breaking devices used by the detonating network is too small, the detonating effect is poor easily, multiple detonations are needed, even the detonating network needs to be rearranged, and the rock breaking effect is reduced. If too many carbon dioxide rock breaking devices are used by the detonating network, the waste of raw materials is easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a broken rock dynamic pressure acquisition experimental apparatus of carbon dioxide is provided, solved and lacked broken rock dynamic pressure change research of carbon dioxide and the broken rock effect that causes is not good or the extravagant problem of raw materials, the device can gather research carbon dioxide combustion process pressure variation, easy operation, convenient to use in the laboratory.
In order to solve the technical problem, the utility model discloses a technical scheme does:
the utility model provides a broken rock dynamic pressure of carbon dioxide gathers experimental apparatus, includes the explosion tube, the explosion tube includes detonating mechanism and feed mechanism, the explosion tube includes the storage shell in the outside and the inboard storage cavity, the fixed pressure sensor that is equipped with in the storage cavity, pressure sensor passes through the sensor connecting wire and connects the data acquisition appearance that is located the explosion tube outside.
The top end of the explosion cylinder is provided with a pressure transmission hole penetrating through the sensor connecting wire, a first rubber tube tightly attached to the sensor connecting wire is sleeved outside the sensor connecting wire, a first bolt is sleeved outside the first rubber tube, an inner thread matched with an outer thread of the first bolt is arranged on the inner side of the pressure transmission hole, and an elastic gasket is sleeved on the outer thread of the first bolt.
The detonation mechanism comprises a detonator positioned in the storage cavity, and the detonator is connected with the capacitor through a capacitor connecting wire.
The charging voltage of the capacitor is 150V.
The capacitor connecting wire runs through the explosion hole on the storage shell, the cover of capacitor connecting wire outside is equipped with hug closely in the second rubber tube of capacitor connecting wire, the cover of second rubber tube outside is equipped with the second bolt, explosion hole inboard be equipped with the internal thread of the external screw thread looks adaptation of second bolt.
The feeding mechanism comprises a feeding hole and an exhaust hole which are arranged on the storage shell, a feeding pipeline is respectively communicated with the feeding hole and the storage shell, an exhaust pipeline is respectively communicated with the exhaust hole and the exhaust pipeline, and the feeding hole is movably connected with a carbon dioxide supply steel cylinder.
And a filter screen is arranged at one end of the exhaust pipeline close to the storage shell.
The feed port with the exhaust hole inboard all is equipped with the internal thread with third bolt external screw thread looks adaptation.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model provides a broken rock dynamic pressure acquisition experimental apparatus of carbon dioxide has solved and has lacked broken rock effect not good or the extravagant problem of raw materials that leads to the fact to the broken rock dynamic pressure variation research of carbon dioxide, and the device can gather the pressure variation in the research carbon dioxide combustion process in the laboratory developments, easy operation, convenient to use.
1. The pressure sensor and the data acquisition instrument are arranged, so that the pressure change in the carbon dioxide combustion process can be conveniently acquired and researched.
2. The setting of explosion tube and detonating mechanism makes things convenient for at laboratory simulation blasting scene, convenient and practical.
3. The arrangement of the piston, the oil pressure bin, the feeding pipeline and the exhaust pipeline realizes an automatic closing device.
4. The airtight arrangement of pressure transmission hole and initiating hole has constructed inclosed blasting environment, obtains more accurate pressure curve.
5. The setting of filter screen can prevent the business turn over of powder, guarantees that the liquid raw materials that carbon dioxide carried powder heating medicine gets into from the charge-in pipeline and stores the cavity, and the concentration of inside powder heating medicine is guaranteed to powder heating medicine can not pass through the filter screen.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the pressure transmission hole sealing structure of the present invention;
FIG. 3 is a schematic structural view of the storage case of the blasting cartridge of the present invention;
fig. 4 is a schematic structural view of the feeding mechanism of the present invention.
Description of reference numerals:
1-storage shell, 2-storage cavity, 3-detonating mechanism, 4-feeding mechanism, 5-detonating hole, 6-filter screen, 7-feeding pipeline, 8-exhausting pipeline, 9-piston, 10-oil pressure bin, 11-feeding hole, 12-exhausting hole, 13-oil pressure hole, 14-pressure transmission hole, 15-data acquisition instrument, 16-capacitor, 17-carbon dioxide supply steel cylinder, 18-sensor connecting line, 19-first rubber tube, 20-first bolt and 21-gasket.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the dynamic pressure acquisition experimental device for rock breaking by carbon dioxide comprises a blasting cartridge, wherein the blasting cartridge comprises a blasting mechanism 3 and a feeding mechanism 4, the blasting cartridge comprises an outer storage shell 1 and an inner storage cavity 2, the storage cavity 2 is a cavity, a pressure sensor is fixedly arranged in the storage cavity 2 through a screw, and the pressure sensor is connected with a data acquisition instrument 15 positioned on the outer side of the blasting cartridge through a sensor connecting wire 18.
The initiation mechanism 3 comprises an initiator located within the storage cavity 2, the initiator being connected to a capacitor 16 by a capacitive connection. The capacitor connecting wire is a copper wire. The initiator may use a conventional electric detonator. The electric detonator is detonated by the initiation energy provided by the instant discharge of the large-capacity capacitor, so that the raw material is detonated. Here, the raw material is liquid carbon dioxide, and a powder heating agent is added, and the powder heating agent is energy gathering agent powder mentioned in patent document CN 105884562A.
Preferably, the charging voltage of the capacitor 16 is 150V.
The feeding mechanism 4 comprises a feeding hole 11 and an exhaust hole 12 which are arranged on the storage shell 1, a feeding pipeline 7 is respectively communicated with the feeding hole 11 and the storage shell 1, an exhaust pipeline 8 is respectively communicated with the exhaust hole 12 and the exhaust pipeline 8, and the feeding hole 11 is movably connected with a carbon dioxide supply steel cylinder 17. The raw material is fed into the storage chamber 2 through the feed hole 11, and as the raw material is gradually filled in the storage chamber 2, air in the storage chamber 2 is discharged through the exhaust hole 12.
Furthermore, a filter screen 6 is arranged at one end of the exhaust pipeline 8 close to the storage shell 1. The filter screen 6 can prevent the powder from entering and exiting, and ensures that the powder heating medicine can not pass through the filter screen when the liquid raw material enters the storage cavity 2 from the feed pipeline 7, thereby ensuring the concentration of the powder heating medicine inside.
The inner sides of the feed hole 11 and the exhaust hole 12 are provided with inner threads matched with the outer threads of the third bolt. And after the storage cavity 2 is filled with the raw materials, the third bolt can be used for sealing the feeding hole 11 and the exhaust hole 12, and the detonation simulation is carried out.
The operation steps are as follows:
1. feeding: a carbon dioxide supply cylinder 17 is connected to the feed port 11 in advance, and the raw material containing liquid carbon dioxide and powdery exothermic compound is introduced into the storage chamber 2 through the feed pipe 7.
2. A sealing device: when the storage case 1 is filled with the raw materials, the feed hole 11 and the exhaust hole 12 are closed by the third bolt.
3. And (3) detonation test: the capacitor 16 is charged and when the voltage reaches 150V, the initiator is detonated and the material is detonated.
4. Pressure analysis: the pressure sensor dynamically captures the pressure change during the detonation process and performs pressure analysis in the data collector 15.
Example 2
As shown in fig. 2, the difference between embodiment 2 and embodiment 1 is only that: the top end of the explosive cartridge is provided with a pressure transmission hole 14 penetrating through the sensor connecting wire 18, the sensor connecting wire 18 is sleeved with a first rubber tube 19 tightly attached to the sensor connecting wire 18, a first bolt 20 is sleeved on the outer side of the first rubber tube 19, an inner thread matched with the outer thread of the first bolt 20 is arranged on the inner side of the pressure transmission hole 14, and an elastic gasket is sleeved on the outer thread of the first bolt 20. The elastic gasket is pressed by tightening the first bolt 20 and the pressure transmission hole 14, so that a better sealing effect is achieved.
The capacitor connecting wire runs through explosion hole 5 on the storage shell 1, the capacitor connecting wire cover be equipped with hug closely in the second rubber tube of capacitor connecting wire, second rubber tube outside cover is equipped with the second bolt, 5 inboards of explosion hole be equipped with the internal thread of the external screw thread looks adaptation of second bolt.
Through the airtight setting of pressure transmission hole 14 with initiating hole 5, further strengthened the seal of blasting environment, be convenient for obtain more accurate pressure variation.
Example 3
As shown in fig. 3 and 4, the only difference between embodiment 3 and embodiment 1 is that: example 1 the opening and closing of the inlet port 11 and the outlet port 12 is carried out manually by hand, and example 3 the automatic closing of the device is carried out by means of the piston 9.
Specifically, the method comprises the following steps: store 2 lower halves of cavity by big-end-up's two rectangle cavities, piston 9 interference is placed store 2's lower half, piston 9 comprises big-end-up's two rectangle pistons, and the height of the big piston of below is less than store 2's big rectangle cavity's height, charge-in pipeline 7 with exhaust duct 8 all passes the piston, and quilt the piston with store 2 divisions of cavity and be two parts, store 1 bottom of shell and be equipped with oil pressure hole 13, oil pressure hole 13 with be located the oil pressure storehouse 10 of piston 9 bottom is linked together.
The principle of the automatic closing device achieved by said piston 9 is as follows:
after detonation, carbon dioxide in the storage cavity 2 is combusted to generate stamping, and the piston 9 is pushed downwards, so that the feeding pipeline 7 and the exhaust pipeline 8 are blocked by the piston wall, and the tightness of internal reaction is ensured.
When the reaction is finished and the data acquisition is finished, and the blasting cartridge is cooled, the feeding hole 11 is closed, oil is injected into the oil pressure bin 10 through the oil pressure hole 13, the piston 9 is pressed to the divided feeding pipeline 7 and the divided exhaust pipeline 8 to be in a communicated state respectively under the action of oil pressure, and at the moment, high-pressure gas in the blasting cartridge can be discharged through the exhaust pipeline 8.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
As used herein, unless otherwise specified the use of the ordinal adjectives "first", "second", "third", etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this description, will appreciate that other embodiments can be devised which do not depart from the scope of the invention as described herein. Moreover, it should be noted that the language used in the specification has been principally selected for readability and instructional purposes, and may not have been selected to delineate or circumscribe the inventive subject matter. Accordingly, many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the appended claims. The disclosure of the present invention is intended to be illustrative, but not limiting, of the scope of the invention, which is set forth in the following claims.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a broken rock dynamic pressure of carbon dioxide gathers experimental apparatus which characterized in that: the explosion-proof device comprises an explosion tube, wherein the explosion tube comprises an initiation mechanism (3) and a feeding mechanism (4), the explosion tube comprises a storage shell (1) on the outer side and a storage cavity (2) on the inner side, a pressure sensor is fixedly arranged in the storage cavity (2), and the pressure sensor is connected with a data acquisition instrument (15) on the outer side of the explosion tube through a sensor connecting wire (18).
2. The carbon dioxide rock breaking dynamic pressure acquisition experimental device according to claim 1, characterized in that: the top end of the explosion cylinder is provided with a pressure transmission hole (14) penetrating through the sensor connecting wire (18), the outer side of the sensor connecting wire (18) is sleeved with a first rubber tube (19) tightly attached to the sensor connecting wire (18), the outer side of the first rubber tube (19) is sleeved with a first bolt (20), the inner side of the pressure transmission hole (14) is provided with an internal thread matched with the external thread of the first bolt (20), and the external thread of the first bolt (20) is sleeved with an elastic gasket.
3. The carbon dioxide rock breaking dynamic pressure acquisition experimental device according to claim 1, characterized in that: the detonation mechanism (3) comprises a detonator positioned in the storage cavity (2), and the detonator is connected with a capacitor (16) through a capacitor connecting line.
4. The carbon dioxide rock breaking dynamic pressure acquisition experimental device according to claim 3, characterized in that: the charging voltage of the capacitor (16) is 150V.
5. The carbon dioxide rock breaking dynamic pressure acquisition experimental device according to claim 3, characterized in that: the capacitor connecting wire runs through explosion hole (5) on storage shell (1), the cover of capacitor connecting wire outside is equipped with hug closely in the second rubber tube of capacitor connecting wire, second rubber tube outside cover is equipped with the second bolt, explosion hole (5) inboard be equipped with the internal thread of the external screw thread looks adaptation of second bolt.
6. The carbon dioxide rock breaking dynamic pressure acquisition experimental device according to claim 1, characterized in that: the feeding mechanism (4) comprises a feeding hole (11) and an exhaust hole (12) which are arranged on the storage shell (1), a feeding pipeline (7) is respectively communicated with the feeding hole (11) and the storage shell (1), an exhaust pipeline (8) is respectively communicated with the exhaust hole (12) and the exhaust pipeline (8), and the feeding hole (11) is movably connected with a carbon dioxide supply steel cylinder (17).
7. The carbon dioxide rock breaking dynamic pressure acquisition experimental device according to claim 6, characterized in that: and a filter screen (6) is arranged at one end of the exhaust pipeline (8) close to the storage shell (1).
8. The carbon dioxide rock breaking dynamic pressure acquisition experimental device according to claim 6, characterized in that: the inner sides of the feed hole (11) and the exhaust hole (12) are provided with inner threads matched with the outer threads of the third bolt.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021273323.5U CN212275225U (en) | 2020-07-01 | 2020-07-01 | Carbon dioxide rock breaking dynamic pressure acquisition experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021273323.5U CN212275225U (en) | 2020-07-01 | 2020-07-01 | Carbon dioxide rock breaking dynamic pressure acquisition experimental device |
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| CN212275225U true CN212275225U (en) | 2021-01-01 |
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| CN202021273323.5U Active CN212275225U (en) | 2020-07-01 | 2020-07-01 | Carbon dioxide rock breaking dynamic pressure acquisition experimental device |
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