CN113513946A - CO (carbon monoxide)2Built-in circuit structure of fracturing device - Google Patents
CO (carbon monoxide)2Built-in circuit structure of fracturing device Download PDFInfo
- Publication number
- CN113513946A CN113513946A CN202110458790.8A CN202110458790A CN113513946A CN 113513946 A CN113513946 A CN 113513946A CN 202110458790 A CN202110458790 A CN 202110458790A CN 113513946 A CN113513946 A CN 113513946A
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- Prior art keywords
- head
- circuit structure
- heater
- rupture disk
- ware
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Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 title claims description 4
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 18
- 239000003245 coal Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000005336 cracking Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention relates to CO2Send and split device field, especially relate to a CO2The built-in circuit structure of the fracturing device comprises electrodes, a sieve tube, a lead, a high-pressure self-tightening sealing structure and a plurality of CO2A fracturing unit body of which CO2The fracturing device body comprises an inflation head, an inflation valve, a liquid storage pipe, a tension type rupture disk, a release head and a heater, wherein the heater is arranged in a sieve pipe, the inflation head, the sieve pipe and the heater are connected and then integrally arranged in the liquid storage pipe, two electrodes are arranged in the inflation head, electrode plugs are fixed at the right end parts of the two electrodes, leads led out by the electrodes are connected with the heater, the leads led out by the electrodes penetrate through the tension type rupture disk reserved with a threading hole after connection, the outside of the pipe is led out by the release head provided with the threading hole and is connected with a socket, and the device is convenient to construct and connect with a lower support CO2The gas-filled head of the fracturing device is connected with an electrode plug. The built-in circuit structure adopted by the invention realizes CO2The circuit of the series connection of the fracture generators is stably transmitted andlong distance implementation of CO2And (3) a fracturing technology.
Description
Technical Field
The invention relates to CO2Send and split device field, especially relate to a CO2A built-in circuit structure of the fracturing device.
Background
China is the biggest raw coal producing country and consuming country in the world, and is also a country with various mine disasters. In various coal mine disasters, gas disasters are serious, and huge economic losses and severe social influences are caused. Meanwhile, coal bed gas (coal bed methane) is also a clean energy source, and has wide development and application prospects.
CO2The fracturing is a novel coal mine gas treatment technology, energy is released through carbon dioxide phase change to fracture coal bodies, and the coal body fracturing method has the advantages of safety, high efficiency, no pollution and the like. When the drilling of the fractured coal body is deep, a plurality of CO are needed2The fracturing device is connected, so that the influence range is wider, the reservoir transformation effect is more obvious, and the gas extraction effect is better. At present, CO2The methods for connecting the circuit of the cracking device are moreFor example, the rupture disk is insulated, so that the carbon dioxide rupture tube body is not conductive, and the wiring devices are welded on two sides of the rupture disk respectively, but the mode easily causes the instability of a circuit, thereby causing phenomena such as misfiring and the like. Another series connection method is described in CN111595205A, in which a threading hole is provided on the rupture disk to allow a wire to pass through, but CO is provided to ensure that the internal pressure reaches a predetermined pressure value2The fracturing device can fracture, and rupture disk thickness design is certain, in case trompil on the rupture disk, and firstly hardly controls predetermined pressure, and secondly the hole sealing effect is hardly guaranteed, in case rupture disk sealing effect is not up to standard, in transport and work progress, takes place the casualties very easily.
The disc-type rupture disk of the traditional shear failure mechanism has close relation between the burst pressure of the CO2 fracturer and the thickness and the material shear strength of the rupture disk, if the pressure of the rupture disk needs to be increased, the thickness of the rupture disk needs to be increased, so that the problem of pressure relief tightness in advance or after pressure relief exists in the use process of the CO2 fracturer due to the fact that the rupture disk is too thick is caused, and huge potential safety hazards are brought to engineering construction.
Disclosure of Invention
The purpose of the invention is to overcome the defects in the prior art and provide a CO which has good sealing performance, convenient operation, safety and high efficiency2A built-in circuit structure of the fracturing device.
The invention is realized by the following technical scheme:
CO (carbon monoxide)2The built-in circuit structure of the fracturing device comprises electrodes, a sieve tube, a lead and a plurality of CO2A fracturing unit body of which CO2The fracturing device body comprises an inflation head, an inflation valve, a liquid storage pipe, a tension type rupture disk, a release head and a heater, wherein external threads are arranged at two ends of the inflation head, an internal thread is additionally arranged at the left end of the inflation head and is in threaded connection with the external thread at the right end of the sieve pipe, the heater is placed inside the sieve pipe, and the right end of the heater is fixed inside the sieve pipe; after the inflation head and the sieve tube are connected with the heater, the inflation head and the sieve tube are placed inside the liquid storage tube, and the internal thread at the left end of the liquid storage tube is spirally fastened with the external thread at the left end of the inflation head;
two electrodes are arranged in the inflation head,the joint of the electrode and the inflation head is provided with an insulating rubber sleeve and a high-voltage self-tightening sealing structure, so that the circuit and CO are prevented from being connected2The short circuit of the fracturing device body also plays a role in sealing, and electrode plugs are fixed at the right end parts of the two electrodes; the lead led out by the electrode is connected with the heater, the lead passes through the tension type rupture disk with a reserved threading hole after connection and is led out of the pipe through a release head with a threading hole, and the tension type rupture disk is spirally fastened inside the liquid storage pipe through the release head after threading;
the lead outside the lead-out pipe is connected with the socket, so that the lead is convenient to be connected with the lower support CO during construction2The gas-filled head of the fracturing device is connected with an electrode plug.
Further, the whole spill structure that is integrated into one piece of stretch-draw type rupture disk, destroy through stretch-draw type rupture disk middle part stretch-draw and reach the blasting impact purpose, stretch-draw type rupture disk left end reserves 10 mm's thickness at least to be equipped with the through-hole, the inside high pressure that is equipped with in through-hole guarantees sealed self-tightening seal structure, the right-hand member portion that stretch-draw type rupture disk played the fixed action is the loop configuration.
Furthermore, the high-voltage self-tightening sealing structure is made of insulating materials such as nylon and polytetrafluoroethylene.
Furthermore, a counter bore is arranged in the release head, the height of the counter bore is consistent with that of the rupture disk, and the counter bore is used for collecting the damaged part of the rupture disk after the fracturing work is finished and preventing the damaged part from flying out of or blocking the release hole.
Furthermore, the sieve tube is integrally cylindrical, holes are fully distributed in the tube body, and the sieve tube is made of metal, ceramic or disposable plastic.
Further, the right end part of the electrode is provided with an electrode plug, and the electrode plug is connected with the CO2The lead wires led out of the body inside the fracturing unit body are connected with an external socket, and the front fracturing unit and the rear fracturing unit are connected with the socket through a plug to form a power-on state.
By adopting the technical scheme, the invention has the following technical effects:
A. the invention adopts the mode of connecting the inner parts of the pipe bodies, thereby avoiding the line abrasion in the cracking operation process and avoiding the line abrasionCO is2The cracking device body is conductive and contacts with water or coal rock in the construction environment to cause abnormal resistance and misfire, and CO is realized2Circuit stable transmission and long-distance CO implementation of fracturing device connection2A fracturing technique;
B. the tension type rupture disc adopted by the invention has large end thickness and is easy to be provided with a through hole, and the through hole is provided with a high-pressure self-tightening sealing structure to achieve good sealing effect; compared with a circular plate type rupture disk of a traditional shearing failure mechanism, the thickness of the left end part of the tension type rupture disk has no direct relation with the bursting pressure, so that the purposes of punching, threading and increasing a high-pressure self-tightening sealing structure at the left end part of the tension type rupture disk can be realized, the high-pressure self-tightening sealing structure can realize the sealing function while a thread hole and a lead pass through the tension type rupture disk, the difficult problem of unsmooth internal electrification is completely solved, the increase of the internal pressure is not influenced, and the effect of rupture disk failure when the preset pressure is reached is also not influenced;
C. the heater is arranged in the sieve tube, so that the heater is more stably arranged in the liquid storage tube, the heater is conveniently connected with a lead led out of the heater, and the energy generated after the heater is combusted is fully absorbed by CO in the liquid storage tube2Absorption; holes are fully distributed on the tube body of the sieve tube, thereby avoiding liquid CO2The blocking effect in the filling process also ensures the liquid CO2Free flow within the reservoir;
D. the high-pressure self-tightening sealing structure is made of nylon and polytetrafluoroethylene, so that CO is generated under different pressure conditions2The inner sealing effect of the cracking device and the insulating effect are achieved; in the high-pressure process, the device also has the function of stabilizing the line in the pipe;
E. one end of the release head is provided with a counter bore for collecting a broken part of a flying rupture disk and preventing the end part of the rupture disk from flying out to block a release hole;
drawings
FIG. 1 shows CO2A cross section of a built-in circuit structure of the fracturing device.
Detailed Description
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1. CO22The built-in circuit structure of the fracturing device comprises an electrode socket 1, a release head 2, a tension type rupture disk 4, a high-pressure self-tightening sealing structure 5, a heater 6, a liquid storage pipe 7, a sieve pipe 8, an electrode 9, a rubber sleeve 10, an electrode plug 11, an inflation head 12 and an inflation valve 13 inside the inflation head.
The electrode 9 is wrapped by a rubber sleeve 10 and is arranged in the inflation head 12, and the left end part of the electrode 9 is provided with a high-pressure self-tightening sealing structure 5;
wherein, both ends of the inflation head 12 are provided with external threads, and the left end part of the inflation head 12 is additionally provided with internal threads which are spirally connected with the external threads at the right end part of the sieve tube 8;
A lead 103 and a lead 102 led out from the left end part of the inflation head 12 are penetrated into the high-pressure self-tightening sealing structure 5, are placed in a reserved threading hole of the tension type rupture disk, and the tension type rupture disk is fixed between the release head 2 and the liquid storage pipe 7; specifically, the left end part of the tension type rupture disk is 20mm in thickness.
The bottom of the counter bore of the release head 2 is also provided with a threading hole, and the lead 102 and the lead 103 penetrate out of the release head 2 and are connected with the electrode socket 1.
Determining the CO required in the construction process2Number of fracturing units, from each CO2The inflation valve 13 inside the inflation head of the fracturer is filled.
After filling, each CO is connected in sequence2The cracking device comprises an electrode socket 1 and a lower support CO2After the electrode plugs 11 of the liquid storage tubes are connected, the electrode plugs are integrally placed at the left end part and the lower support CO of the release head 22The right end of the liquid storage tube inflation head 12 is connected with the inner space of the back. Connected to the last CO in this way2Fracturing device, the last of which is CO2The lead 102 and the lead 103 inside the fracturing device are connected together to lead all CO2And a closed loop is formed inside the fracturing device, so that the fracturing work is completed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. CO (carbon monoxide)2The built-in circuit structure of the fracturing device comprises electrodes, a sieve tube, a lead, a high-pressure self-tightening sealing structure and a plurality of CO2A fracturing unit body of which CO2The ware body is split including aerifing head, inflation valve, liquid storage pipe, stretch-draw type rupture disk, release head and heater, its characterized in that: external threads are arranged at both ends of the inflating head, wherein internal threads are additionally arranged at the left end part of the inflating head, the internal threads are in spiral connection with the external threads at the right end part of the sieve tube, a heater is arranged inside the sieve tube, and the right end part of the heater is fixed inside the sieve tube; the whole body of the inflation head, the sieve tube and the heater after being connected is placed in the liquid storage tankThe right end part of the liquid storage pipe is connected with the left end part of the inflation head inside the tube;
two electrodes are arranged in the inflation head, and electrode plugs are fixed at the right end parts of the two electrodes; the lead led out by the electrode is connected with the heater, the lead passes through the tension type rupture disk with a reserved threading hole after connection and is led out of the pipe through a release head with a threading hole, and the tension type rupture disk is spirally fastened inside the liquid storage pipe through the release head after threading;
the lead outside the lead-out pipe is connected with the socket, so that the lead is convenient to be connected with the lower support CO during construction2The gas-filled head of the fracturing device is connected with an electrode plug.
2. CO according to claim 12Send and split built-in circuit structure of ware, its characterized in that: and the joint of the inner electrode of the inflation head and the inflation head is provided with an insulating rubber sleeve and a high-pressure self-tightening sealing structure.
3. CO according to claim 12Send and split built-in circuit structure of ware, its characterized in that: the high-pressure self-tightening sealing structure is made of insulating nylon and polytetrafluoroethylene materials.
4. CO according to claim 12Send and split built-in circuit structure of ware, its characterized in that: the whole of the tension type rupture disk is of an integrally formed concave structure.
5. CO according to claim 12Send and split built-in circuit structure of ware, its characterized in that: the left end part of the tension type rupture disk is reserved with a thickness of 10mm at least and is provided with a through hole, and a high-pressure self-tightening sealing structure for ensuring sealing is arranged inside the through hole.
6. CO according to claim 12Send and split built-in circuit structure of ware, its characterized in that: the right end part of the tension type rupture disk, which plays a role in fixing, is of an annular structure.
7. Root of herbaceous plantA CO according to claim 12Send and split built-in circuit structure of ware, its characterized in that: and the lead wire led out from the electrode is connected with the heater in a series circuit structure or a parallel circuit structure.
8. CO according to claim 12Send and split built-in circuit structure of ware, its characterized in that: a counter bore is formed in the release head, and the height of the counter bore is consistent with that of the rupture disk.
9. CO according to claim 12Send and split built-in circuit structure of ware, its characterized in that: the sieve tube is integrally cylindrical, holes are fully distributed in a tube body, and the sieve tube is made of metal, ceramic or disposable plastic products.
10. CO according to claim 12Send and split built-in circuit structure of ware, its characterized in that: the right end part of the electrode is provided with an electrode plug from CO2The lead wires led out of the body inside the fracturing unit body are connected with an external socket, and the front fracturing unit and the rear fracturing unit are connected with the socket through a plug to form a power-on state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458790.8A CN113513946B (en) | 2021-04-27 | 2021-04-27 | CO2 sends and splits built-in circuit structure of ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458790.8A CN113513946B (en) | 2021-04-27 | 2021-04-27 | CO2 sends and splits built-in circuit structure of ware |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113513946A true CN113513946A (en) | 2021-10-19 |
| CN113513946B CN113513946B (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110458790.8A Active CN113513946B (en) | 2021-04-27 | 2021-04-27 | CO2 sends and splits built-in circuit structure of ware |
Country Status (1)
| Country | Link |
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| CN (1) | CN113513946B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004012965A1 (en) * | 2002-07-19 | 2004-02-12 | Nippon Kayaku Kabushiki Kaisha | Gas generator |
| CN204730767U (en) * | 2015-05-05 | 2015-10-28 | 山东名世矿业机械有限公司 | A kind of carbon dioxide fracturing apparatus |
| CN204788091U (en) * | 2015-06-25 | 2015-11-18 | 永州市鑫东森机械装备有限公司 | Starting drive of detonating ware of carbon dioxide |
| CN105401930A (en) * | 2015-09-02 | 2016-03-16 | 煤科集团沈阳研究院有限公司 | Carbon dioxide phase change coal seam fracturing device and utilization method |
| CN106288972A (en) * | 2016-10-18 | 2017-01-04 | 陕西金土地矿业有限公司 | Coal seam sealing of hole carbon dioxide fracturing device |
| CN106703773A (en) * | 2015-08-03 | 2017-05-24 | 中国矿业大学 | Liquid carbon dioxide bomb, propping agent blasting anti-reflection method and device |
| CN207585444U (en) * | 2017-11-13 | 2018-07-06 | 河北石探机械制造有限责任公司 | Carbon dioxide fracturing device |
| CN111521069A (en) * | 2020-05-21 | 2020-08-11 | 煤科集团沈阳研究院有限公司 | Carbon dioxide phase change directional pressure relief fracturing device for tunneling and use method thereof |
-
2021
- 2021-04-27 CN CN202110458790.8A patent/CN113513946B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004012965A1 (en) * | 2002-07-19 | 2004-02-12 | Nippon Kayaku Kabushiki Kaisha | Gas generator |
| CN204730767U (en) * | 2015-05-05 | 2015-10-28 | 山东名世矿业机械有限公司 | A kind of carbon dioxide fracturing apparatus |
| CN204788091U (en) * | 2015-06-25 | 2015-11-18 | 永州市鑫东森机械装备有限公司 | Starting drive of detonating ware of carbon dioxide |
| CN106703773A (en) * | 2015-08-03 | 2017-05-24 | 中国矿业大学 | Liquid carbon dioxide bomb, propping agent blasting anti-reflection method and device |
| CN105401930A (en) * | 2015-09-02 | 2016-03-16 | 煤科集团沈阳研究院有限公司 | Carbon dioxide phase change coal seam fracturing device and utilization method |
| CN106288972A (en) * | 2016-10-18 | 2017-01-04 | 陕西金土地矿业有限公司 | Coal seam sealing of hole carbon dioxide fracturing device |
| CN207585444U (en) * | 2017-11-13 | 2018-07-06 | 河北石探机械制造有限责任公司 | Carbon dioxide fracturing device |
| CN111521069A (en) * | 2020-05-21 | 2020-08-11 | 煤科集团沈阳研究院有限公司 | Carbon dioxide phase change directional pressure relief fracturing device for tunneling and use method thereof |
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| Publication number | Publication date |
|---|---|
| CN113513946B (en) | 2023-03-31 |
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