CN207315376U - Portable safety gas fracturing pipe group - Google Patents
Portable safety gas fracturing pipe group Download PDFInfo
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- CN207315376U CN207315376U CN201721268524.4U CN201721268524U CN207315376U CN 207315376 U CN207315376 U CN 207315376U CN 201721268524 U CN201721268524 U CN 201721268524U CN 207315376 U CN207315376 U CN 207315376U
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Abstract
The utility model provides a kind of Portable safety gas fracturing pipe group.If the gas fracturing pipe group is sequentially concatenated by connecting tube to be formed by dry gas fracturing pipe；Each gas fracturing Guan Jun includes outer tube, inner tube, ignites conducting wire and electroluminescent igniter head；Outer tube is pressure-resistant plastic tube, is worn on the end cap at its both ends and is connected to metal interface；Inner tube is straight tube paper tube, is built-in with the pyrotechnic compound that high pressure causes combustion, blocking is arranged with inner tube both ends；Ignite conducting wire and run through inner tube, and its both ends is pierced by after blocking and is fixed on metal interface respectively；Electroluminescent igniter head is arranged in inner tube, and is electrically connected with igniting conducting wire.The utility model is ignited explosion using pressure-air and pyrotechnic compound, bursting work is completed using the powerful thrust of gas, pyrotechnic compound is not combustible and explosive articles under normal pressure in gas fracturing pipe, it is not susceptible to explode in operation, the security in operating process is substantially increased, and the smog after explosion is safe from harm environment.
Description
Technical field
A kind of mining equipment is the utility model is related to, specifically a kind of Portable safety gas fracturing pipe group.
Background technology
In the past, no matter outdoor or underground mine was exploited and excavated, using explosive blasting method.In recent years, due to
Security risk is big, easily the shortcomings of blasting fume poisoning occurs during explosive buying, transport and the dangerous high and use of storage, rises
On-explosive crushes exploitation and digging mode, most commonly liquid carbon dioxide exploitation equipment, former using gas expansion for doing work
Manage to reach rupture to medium, run through and demolition purpose.But carbon dioxide exploitation device is to use original of the steel as equipment
Material, from assembling, filling liquid and joint connection in site and placement, armamentarium uses manual operation, and labor strength is very big,
Work efficiency is low, and compared with explosive is convenient to use, these factors have impact on the extensive use of this technology.
Utility model content
The purpose of this utility model is just to provide a kind of Portable safety gas fracturing pipe group, which compares
Carbon dioxide exploitation device for have the advantages that it is easy to assembly quick, compared to for explosive blasting with higher security.
What the purpose of this utility model was realized in：A kind of Portable safety gas fracturing pipe group, the gas fracturing
If pipe group is sequentially to be concatenated by dry gas fracturing pipe and formed；Each gas fracturing pipe includes：
Outer tube, is straight tube pressure-resistant plastic tube body, its both ends is connected with end cap, the gold for being connected to circular tube shaped is worn on the end cap
Belong to interface, external screw thread is formed with the exposed junction of the metal interface；
Inner tube, is straight tube paper tube, is built-in with the pyrotechnic compound that high pressure causes combustion, and the stifled of closure tube chamber is arranged with inner tube both ends
Plug；
Ignite conducting wire, through said inner tube, and its both ends be pierced by respectively where end the blocking after, be fixed in where end
The metal interface that covers of outer tunnel end on；And
Electroluminescent igniter head, is arranged in said inner tube, and the ignition conducting wire with penetrating inner tube is electrically connected；
It is attached between two neighboring gas fracturing pipe by connecting tube, the connecting tube has identical with the outer tube
Structure；The conducting wire for the metal interface at connecting tube both ends to be connected is additionally provided with the connecting tube；Connecting tube
It is attached between the metal interface of end and the metal interface of gas fracturing tube end by clamp nut.
The outer tube bore of all gas fracturing pipe of the gas fracturing Guan Zuzhong is mutually communicated；Positioned at gas fracturing pipe group
The metal interface of one end is grounded with silk plug sealing-in and on connecting, and the metal interface positioned at the fracturing pipe group other end is connected by gas
Siphunculus is connected with air compressor, and is electrically connected by conducting wire with electronic starter.
The outer tube is the pvc pipe of tolerable 1.0MPa air pressures, and the blocking at said inner tube both ends is by PVC or PE materials
It is made.
The pyrotechnic compound is that can ignite to cause quick-fried primer under condition of high voltage, and the mass percent of its component proportion is：
Potassium hyperchlorate 30%-70%, ammonium nitrate 10%-50%,
Aluminium powder 2%-10%, ammonium oxalate 10%-30%.
Preferably, the quality proportioning of each component is in the pyrotechnic compound：Potassium hyperchlorate 45%, ammonium nitrate 35%, aluminium powder 5%, grass
Sour ammonium 15%.
The condition of high voltage refers to air pressure and is not more than 0.8MPa.
Portable safety gas fracturing pipe group provided by the utility model, by the way that several gas fracturing pipes are sequentially gone here and there
Pick up and, in application, the gas fracturing pipe group of the concatenation is put into the hole of point to be blasted, head end is passed through by air compressor
Metal interface into outer tube injecting compressed air, backward ignite in conducting wire be passed through electric current, make the electricity to connect with ignition conducting wire
Igniter head is caused to ignite, since interior tube cavity is under condition of high voltage, electroluminescent igniter head can ignite the pyrotechnic compound in inner tube, promote
Redox reaction occurs for pyrotechnic compound, and moment produces substantial amounts of high temperature and high pressure gas, and explosion occurs for gas fracturing pipe, inner tube and outer
While pipe is burst, the gases at high pressure in outer tube bore are also together ejected, therefore form powerful gas burst power, this is strong
Big gas burst power can push the materials such as ore open, realize the bursting work to ore etc..
It is attached in the utility model between two neighboring gas fracturing pipe by connecting tube, connecting tube and gas fracturing
The structure of pipe middle external tube is identical, i.e.,：Connecting tube is straight tube pressure-resistant plastic tube body, its both ends is connected with end cap, on the end cap
The metal interface for being connected to circular tube shaped is worn, external screw thread is formed with the exposed junction of the metal interface.During connection：Make connecting tube both ends
Metal interface be connected to each other with the metal interface of two gas fracturing tube ends to be connected, then both are connected by clamp nut
Get up, it is achieved thereby that being fastenedly connected between two gas fracturing pipes.The length of connecting tube can be adjusted as needed,
So that whole gas fracturing pipe group can reach the situation that length is taken into account with plasting damage effect, in the sufficiently large premise of plasting damage effect
Under reduce the usage amount of gas fracturing pipe, reduce cost.
In gas fracturing pipe, outer tube is high voltage bearing plastic tube, plastic tube compared with prior art in liquid carbon dioxide
For steel pipe, have the advantages that light, cost is low；Moreover, end cap is set at the both ends of outer tube, the paper inside can effectively protect
Matter inner tube, avoids the pyrotechnic compound in papery inner tube from revealing and avoid papery inner tube to be drenched by water, can construct in inclement weather.
Outer tunnel end, which covers to wear, connects hollow metal interface, can make between outer tube and outer tube or outer tube and remaining irony or non-ferrous pipe fitting it
Between realize quick connection.The material of inner tube is papery, inherently belongs to wood fiber structure, can be played the role of combustion-supporting.In inner tube
Pyrotechnic compound can be only ignited under elevated pressure conditions, not have the presence of combustible and explosive articles under normal pressure, therefore in transport, storage
And during preparing explosion etc., unexpected possibility occurs and substantially reduces, the safety of related personnel has been effectively ensured.In addition,
Compared to traditional blasting method, due to the characteristic of air high temperature fracturing, mine is carried out when explosion using the gas fracturing pipe group,
Explosion sound is relatively small, no slungshot phenomenon, no airborne dust, no Sasser and shock wave, and will not produce pernicious gas, to quick-fried
Environment near breakpoint is influenced less, suitable for being promoted and applied in association area.
Brief description of the drawings
Fig. 1 is the structure diagram of single gas fracturing pipe in the utility model.
Fig. 2 is the attachment structure schematic diagram between two gas fracturing pipes.
In figure：1st, outer tube, 2, inner tube, the 3, first end cap, the 4, second end cap, 5, block, 6, ignite conducting wire, 7, electroluminescent igniting
Head, 8, pyrotechnic compound, 9, gasket seal, 10, metal interface, 11, nut, 12, clamp nut, 13, connecting tube, 14, conducting wire.
Embodiment
If Portable safety gas fracturing pipe group provided by the utility model be sequentially concatenated by dry gas fracturing pipe and
Formed.The structure of each gas fracturing pipe is as shown in Figure 1, the connection structure between two neighboring gas fracturing pipe is as shown in Figure 2.
With reference to Fig. 1 and Fig. 2, each gas fracturing Guan Jun includes hollow outer tube 1 and inner tube 2, and inner tube 2 is located in the inner cavity of outer tube 1.
2 length of inner tube is about the 60%-70% of 1 length of outer tube, and 2 outside diameter of inner tube is about the 60%-70% of 1 internal diameter of outer tube.Outer tube 1 is straight barrel type
High pressure resistant plastic tube body, in the head end of outer tube 1（Left side in Fig. 1）The first end cap 3 is provided with, in the tail end of outer tube 1（In Fig. 1
Right side）The second end cap 4 is provided with, the first end cap 3 and the second end cap 4 envelope the initial and end both ends of outer tube 1, the first end cap 3 and
Can be bonded by glue special between two end caps 4 and the initial and end both ends of outer tube 1.Inner tube 2 is the papery tube body of straight barrel type, inside
The initial and end both ends of pipe 2 are separately provided for the blocking 5 of closure tube chamber, block 5 inner cavities that may be provided at 2 initial and end both ends of inner tube
In, blocking also can be bonded by glue special between 5 and 2 tube wall of inner tube.Outer tube 1 and its first end cap 3 and second end at both ends
Lid 4 can be made of PVC material, and outer tube 1 can tolerate the air pressure of 1.0MPa；2 material of inner tube is papery, the blocking 5 at 2 both ends of inner tube
It is made of PVC or PE materials.
The metal interface 10 for being connected to circular tube shaped, metal interface are worn on first end cap 3 and the second end cap 4 at 1 both ends of outer tube
10 parts exposed outside end cap are formed with external screw thread, and certainly, the screw that whole metal interface 10 is arranged to hollow structure is also can
With, one end of metal interface 10 is exposed at outside outer tube 1, and the other end is located in 1 inner cavity of outer tube, the axial line of metal interface 10 with
The axis line location of outer tube 1 is on same straight line.Metal interface 10 passes through two nuts 11（It is located at the both sides of end cap respectively）It is fixed
On end cap, and gasket seal 9 is provided between nut 11 and end cap.
In the interior igniting for causing the pyrotechnic compound 8 of combustion equipped with high pressure and being made of electroluminescent igniter head 7 and ignition conducting wire 6 of inner tube 2
Device.The high copper wire conducting wire of conductivity can be used by igniting conducting wire 6.The both ends for igniting conducting wire 6 are each passed through the blocking at 2 both ends of inner tube
5 and metal interface 10 corresponding with 1 end of outer tube connect, since metal interface 10 is conductor, ignite conducting wire 6 connect with metal
It is to be electrically connected between mouth 10.Electroluminescent igniter head 7 is arranged in inner tube 2, and is electrically connected with the ignition conducting wire 6 through inner tube 2.
Pyrotechnic compound 8 needs to be detonated under elevated pressure conditions in the utility model, even if in atmospheric conditions with naked light
Directly contact will not be detonated, therefore the gas fracturing pipe in the utility model is all non-during transport or spelling
Chang Anquan.Specifically, the quality proportioning of each component is in pyrotechnic compound 8：Potassium hyperchlorate 30%-70%, ammonium nitrate 10%-50%, aluminium powder
2%-10%, ammonium oxalate 10%-30%；Preferably, the quality proportioning of each component is in pyrotechnic compound 8：Potassium hyperchlorate 45%, ammonium nitrate
35%, aluminium powder 5%, ammonium oxalate 15%.The preparation method of pyrotechnic compound 8 is：Each component is mixed by suitable quality proportioning, is then thrown
Enter in kneader stir 1-2 it is small when, mixing.Preparation method is simple and quick, easy to implement.
As shown in Fig. 2, two neighboring gas fracturing pipe is attached by connecting tube 13 in utility model.Connecting tube
13 have identical structure with outer tube 1, i.e.,：Connecting tube 13 is the pressure-resistant plastic tube body of straight tube, at the head and the tail both ends of connecting tube 13
The first end cap 3 and the second end cap 4 have been respectively and fixedly connected with, the metal interface 10 for being connected to circular tube shaped has been worn on two end caps, in metal
External screw thread is formed with the exposed junction of interface 10, is attached between metal interface 10 and corresponding end cap by two nuts, spiral shell
Gasket seal is equipped between female and end cap.It is equipped with connecting tube 13 and is used to connect two end caps at 13 both ends of connecting tube
Conducting wire 14.The conducting wire 14 is equal to the ignition conducting wire 6 in gas fracturing pipe.Connecting tube 13 is different from gas fracturing pipe
It is that inner tube is not provided with connecting tube, while is not provided with pyrotechnic compound and electroluminescent igniter head.
When connecting two gas fracturing pipes using connecting tube 13, one end of a clamp nut 12 is socketed in first previous
On the metal interface 10 of a gas fracturing pipe tail end, the metal interface 10 of 13 head end of connecting tube is then set to stretch into clamp nut 12
The other end, by the metal interface 10 of 13 head end of precession connecting tube, makes the realization pair in clamp nut 12 of two metal interfaces 10
Connect.After the same method by the metal interface 10 of 13 tail end of connecting tube and the metal interface 10 of the latter gas fracturing pipe head end
Connected using clamp nut 12, it is achieved thereby that being connected former and later two gas fracturing pipes by connecting tube 13.It is this
Connection mode operates also more convenient, quick, therefore to form whole gas fracturing pipe group be also than faster by concatenation
's.
Since the metal interface 10 of connecting tube 13 and its both ends is hollow structure, connected using connecting tube 13 adjacent
After two gas fracturing pipes, the inner cavity of two outer tubes 1 is still in connected state, so that whole gas fracturing Guan Zuzhong
The inner cavity of outer tube 1 mutually penetrate through.Furthermore the metal interface 10 at 13 both ends of connecting tube is metal material, and in connecting tube
The conducting wire 14 for connecting the metal interface 10 at 13 both ends of connecting tube is provided with 13, therefore after the use connection of connecting tube 13
Ignition conducting wire 6 in two gas fracturing pipes is to be in status of electrically connecting, so that the ignition of whole gas fracturing Guan Zuzhong
Conducting wire 6 forms cascaded structure.
Several gas fracturing pipes are sequentially concatenated to form gas fracturing Guan Zuhou, make the metal of gas fracturing pipe group tail end
Interface is used with silk plug nut seal and connects upper ground wire, and gas fracturing pipe group of the concatenation after good is put into the hole of point to be blasted
Interior, the metal interface of gas fracturing pipe group tail end is located at the bottom in hole.Lead to the metal interface of gas fracturing pipe group head end
Cross air communicating pipe with air compressor to be connected, and be electrically connected by conducting wire with electronic starter.Air compressor is opened, is led to
The inner cavity for crossing gas fracturing pipe group head end metal interface to gas fracturing pipe group middle external tube is passed through compressed air, controls gas fracturing
The air pressure of Guan Zuzhong is no more than 0.8MPa, closes air compressor afterwards, stops gas injection, and the gas that will connect gas fracturing pipe group
Body communicating pipe shuts, blocks., can by air compressor since the inner cavity of all outer tubes of gas fracturing Guan Zuzhong communicates
The inner cavity of all outer tubes is set all to be passed into compressed air.Air pressure in inner tube is identical with the air pressure in outer tube, is no more than
0.8MPa。
Withdraw air compressor and clear out a gathering place, after all personnel and field device evacuate to safety zone, by long-range
Remote control electronic starter powers on, and triggering electronic starter switch, makes to be passed through electric current in ignition conducting wire, and then make each gas
Body fracturing Guan Zhongyu ignites electroluminescent igniter head that conducting wire connects and ignites, since interior tube cavity is under condition of high voltage, it is electroluminescent
Igniter head can ignite the pyrotechnic compound in inner tube, promote pyrotechnic compound that redox reaction occurs, it is high that moment produces substantial amounts of high temperature
Calm the anger body, explosion occurs for gas fracturing pipe（Inner and outer tubes are burst）, temperature that pyrotechnic compound produces after being ignited in 30ms
Not less than 500 DEG C, explosion velocity is not less than 4000m/s, and quick-fried appearance is not less than 650L/kg, and caused powerful gas push power can push away
Open a mine stone etc., complete bursting work.
Claims (4)
1. a kind of Portable safety gas fracturing pipe group, it is characterized in that, if the gas fracturing pipe group is by dry gas fracturing pipe
Sequentially concatenate and formed；Each gas fracturing pipe includes：
Outer tube, is straight tube pressure-resistant plastic tube body, its both ends is connected with end cap, is worn on the end cap and is connected to the metal of circular tube shaped and connects
Mouthful, it is formed with external screw thread on the exposed junction of the metal interface；
Inner tube, is straight tube paper tube, is built-in with the pyrotechnic compound that high pressure causes combustion, the blocking of closure tube chamber is arranged with inner tube both ends；
Ignite conducting wire, through said inner tube, and its both ends be pierced by respectively where end the blocking after, end is outer where being fixed in
On the metal interface in pipe end-cap；And
Electroluminescent igniter head, is arranged in said inner tube, and the ignition conducting wire with penetrating inner tube is electrically connected；
It is attached between two neighboring gas fracturing pipe by connecting tube, the connecting tube has the knot identical with the outer tube
Structure, i.e.,：The connecting tube is straight tube pressure-resistant plastic tube body, its both ends is connected with end cap, is worn on the end cap and be connected to circular tube shaped
Metal interface, be formed with external screw thread on the exposed junction of the metal interface；It is additionally provided with the connecting tube for that will connect
The conducting wire that the metal interface at adapter both ends connects；The metal for connecting the metal interface and gas fracturing tube end of tube end connects
It is attached between mouthful by clamp nut.
2. Portable safety gas fracturing pipe group according to claim 1, it is characterized in that, the gas fracturing Guan Zuzhong's
The outer tube bore of all gas fracturing pipe is mutually communicated；Metal interface silk plug sealing-in and company positioned at gas fracturing pipe group one end
Ground wire is connected, the metal interface positioned at the fracturing pipe group other end is connected by communicating pipe with air compressor, and by leading
Line is electrically connected with electronic starter.
3. Portable safety gas fracturing pipe group according to claim 1, it is characterized in that, the outer tube is tolerable
The pvc pipe of 1.0MPa air pressures, the blocking at said inner tube both ends are made of PVC or PE materials.
4. Portable safety gas fracturing pipe group according to claim 1, it is characterized in that, the pyrotechnic compound is condition of high voltage
It can ignite down and cause quick-fried primer, the condition of high voltage refers to air pressure and is not more than 0.8MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721268524.4U CN207315376U (en) | 2017-09-29 | 2017-09-29 | Portable safety gas fracturing pipe group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721268524.4U CN207315376U (en) | 2017-09-29 | 2017-09-29 | Portable safety gas fracturing pipe group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207315376U true CN207315376U (en) | 2018-05-04 |
Family
ID=62428158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721268524.4U Active CN207315376U (en) | 2017-09-29 | 2017-09-29 | Portable safety gas fracturing pipe group |
Country Status (1)
| Country | Link |
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| CN (1) | CN207315376U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986685A (en) * | 2020-01-02 | 2020-04-10 | 中南大学 | Gas energy pipe, fracturing device and fracturing method |
| CN112344800A (en) * | 2020-11-27 | 2021-02-09 | 广西中爆电子科技有限公司 | Electronic gas exciting tube and manufacturing method thereof |
-
2017
- 2017-09-29 CN CN201721268524.4U patent/CN207315376U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986685A (en) * | 2020-01-02 | 2020-04-10 | 中南大学 | Gas energy pipe, fracturing device and fracturing method |
| CN110986685B (en) * | 2020-01-02 | 2023-08-22 | 中南大学 | Gas energy pipe, fracturing device and fracturing method |
| CN112344800A (en) * | 2020-11-27 | 2021-02-09 | 广西中爆电子科技有限公司 | Electronic gas exciting tube and manufacturing method thereof |
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