CN105364724A - Cutting device and method for fracturing sample - Google Patents
Cutting device and method for fracturing sample Download PDFInfo
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- CN105364724A CN105364724A CN201410426005.0A CN201410426005A CN105364724A CN 105364724 A CN105364724 A CN 105364724A CN 201410426005 A CN201410426005 A CN 201410426005A CN 105364724 A CN105364724 A CN 105364724A
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Abstract
The invention discloses a cutting device and method for a fracturing sample, and belongs to the field of coal-bed gas well fracturing fracture progress physical simulation experiments. The device comprises a worktable and rotation control system, a spray nozzle, a solid cutting agent control box, a solid cutting agent container, a floating guide rail, a floating installation plate, a liquid cutting agent leading-in pipe, a liquid cutting agent booster pump, a fixed guide rail, a clamp and a recycling groove. A solid cutting agent and a fluid cutting agent are mixed through the cutting device for the fracturing sample so as to cut the fracturing sample, so that the probability of breakage of the fracturing sample in the cutting process is reduced, and the production cost of the fracturing sample is reduced.
Description
Technical field
The present invention relates to coal bed gas well fracturing fracture expansion physical simulation experiment field, a kind of particularly cutter sweep of pressure break test specimen and method.
Background technology
In common fracturing fracture expansion physical simulation experiment, coal rock specimen is common fracturing model, this coal rock specimen is used for providing experimental data for on-the-spot pressure break, but the development degree of micro cracks in oil of the raw material of this coal rock specimen due to raw material in process is different, the intensity of bearing processing dynamics is low, and then easily broken, thus make cutting and drill through difficulty to become large, therefore prepare prerequisite and key technology that coal rock specimen becomes fracturing fracture expansion physical simulation experiment.
Prepare in the technology of coal rock specimen existing, usually adopt following methods: first, by dish saw, the raw material of coal rock specimen is cut, make raw material reach shape needed for experiment and size; Secondly, polishing machine is used to carry out surface finish to the raw material after cutting; 3rd, by the raw material of platform drill after polishing drills through simulation well; Finally, epoxy glue solidification simulation well is used.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem: prepare in the process of coal rock specimen existing, due to when coiling saw and cutting the raw material of coal rock specimen, can due to cutting process mid-game saw generation vibrations by a relatively large margin, make coal rock specimen broken before the forming, thus reduce coal rock specimen be prepared into power, and then the experimental data that impact provides for on-the-spot pressure break.
Summary of the invention
In order to solve raw material breakable problem in process of existing coal rock specimen, embodiments provide a kind of cutter sweep and method of pressure break test specimen.Described technical scheme is as follows:
First aspect, provide a kind of cutter sweep of pressure break test specimen, described preparation facilities comprises:
Work stage and Rotable Control System, nozzle, solid cutting agent control cabinet, solid cutting agent container, travelling guide rail, travelling installing plate, liquid cutting agent ingress pipe, liquid cutting agent booster pump, fixed guide, fixture and accumulator tank, wherein:
Described solid cutting agent container and described liquid cutting agent booster pump are fixed on described travelling installing plate, wherein, described liquid cutting agent ingress pipe is connected with described liquid cutting agent booster pump, and described nozzle is vertically installed on the downside of described liquid cutting agent booster pump; Described solid cutting agent control cabinet is vertically installed on the downside of described solid cutting agent container; Described solid cutting agent control cabinet is connected with described nozzle;
Described travelling installing plate is installed in the slide rail of described travelling guide rail;
Described travelling guide rails assembling is on the slide rail of described fixed guide;
Described fixed guide is installed along the cell wall of described accumulator tank;
Described work stage and Rotable Control System are placed in the bottom centre in described accumulator tank,
Described fixture horizontal setting is in described accumulator tank inside sidewalls, and vertical with the described work stage horizontal direction in described work stage and Rotable Control System.
Optionally, described work stage and Rotable Control System, comprising: internal fixtion back shaft, telescopic head, inner support plate, thrust ball bearing and rotating control shaft; Wherein,
Described work stage is placed horizontally on described rotating control shaft, and described work stage and described rotating control shaft are fixed;
There are at least four grooves in described rotating control shaft inwall, each groove interval predetermined angular, the corresponding through-hole groove of described each groove;
Described telescopic head is positioned at outside the axial wall of described internal fixtion back shaft, and is positioned at same level with described each groove, and can be chimeric with described groove;
It is inner that described inner support plate, described thrust ball bearing and described internal fixtion back shaft are nested in described rotating control shaft, wherein, described internal fixtion back shaft is fixed on bottom described accumulator tank, described inner support plate level is positioned on described internal fixtion back shaft, described thrust ball bearing is positioned on described inner support plate, and is connected with bottom described work stage.
Further, described telescopic head, comprising: bulb, spring, back of the body cap and plug; Wherein,
Described plug and described back of the body cap are fixed on described internal fixtion back shaft inside sidewalls;
Described bulb and described spring are nested in described back of the body cap, and described bulb is connected with described plug by described spring.
Optionally, described device also comprises: hybrid chamber and mixing nozzle, wherein,
It is inner that described nozzle is nested in described hybrid chamber;
Described solid cutting agent control cabinet is communicated with by conduit with described hybrid chamber;
Described mixing nozzle is vertically installed on the downside of described hybrid chamber.
Second aspect, provides a kind of cutting method of pressure break test specimen, and in the cutter sweep for pressure break test specimen as described in relation to the first aspect, described method comprises:
Pressure break sample is positioned in described work stage, by described fixture, described pressure break sample is fixed;
According to the solid cutting parameter preset, described solid cutting agent control cabinet controls the solid cutting agent in described solid cutting agent container, and the liquid cutting agent controlled with liquid cutting agent booster pump mixes, and is cut described pressure break sample by described nozzle.
Optionally, the solid cutting parameter that described basis is preset, described solid cutting agent control cabinet controls the solid cutting agent in described solid cutting agent container, and the liquid cutting agent controlled with liquid cutting agent booster pump mixes, by described nozzle, described pressure break sample is cut, comprising:
According to described default solid cutting parameter, travelling installing plate in the cutter sweep of described pressure break test specimen is along with the movement of the travelling guide rail in the cutter sweep of described pressure break test specimen, by being installed on the liquid cutting agent booster pump of travelling installing plate in described travelling guide rail by liquid cutting agent, mix with the solid cutting agent in the described solid cutting agent container controlled by described solid cutting agent control cabinet, by described nozzle, the described pressure break sample in described work stage is cut.
Further, the described liquid cutting agent booster pump by being installed on travelling installing plate in described travelling guide rail is by liquid cutting agent, mix with the solid cutting agent in the described solid cutting agent container controlled by described solid cutting agent control cabinet, by described nozzle, the described pressure break sample in described work stage is cut, comprising:
According to the liquid pressure that described liquid cutting agent booster pump promotes liquid cutting agent, in the hybrid chamber in the cutter sweep of described pressure break test specimen, form vacuum pressure differential;
According to described vacuum pressure differential, the solid cutting agent in described solid cutting agent solvent is mixed in described liquid cutting agent by described solid cutting agent control cabinet, forms solid-liquid mixing cutting agent;
By mixing nozzle in the cutter sweep of described pressure break test specimen, described solid-liquid cutting agent is cut the described pressure break sample in described work stage.
Further, describedly by mixing nozzle in the cutter sweep of described pressure break test specimen, described solid-liquid cutting agent to be cut the described pressure break sample in described work stage, comprising:
Control the rotation of lower described work stage according to the Rotable Control System in the cutter sweep of described pressure break test specimen, the described pressure break test specimen in described work stage is cut.
Optionally, the described rotation controlling lower described work stage according to the Rotable Control System in the cutter sweep of described pressure break test specimen, before being cut by the described pressure break test specimen in described work stage, also comprises:
By the rotating control shaft in the Rotable Control System in the cutter sweep of described pressure break test specimen, the work stage be connected with described rotating control shaft is rotated;
When described rotating control shaft rotates along with the thrust ball bearing in described Rotable Control System, telescopic head in internal fixtion back shaft in described Rotable Control System is chimeric with the groove of described rotating control shaft inwall, the fixing work stage be connected with described rotating control shaft.
Optionally, it is characterized in that, the solid cutting parameter that described basis is preset, described solid cutting agent control cabinet controls the solid cutting agent in described solid cutting agent container, the liquid cutting agent controlled with liquid cutting agent booster pump mixes, after by described nozzle described pressure break sample being cut, also comprise:
Recovery cleaning is carried out by the waste material of the accumulator tank in the cutter sweep of described pressure break test specimen to the described pressure break test specimen after cutting.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: by the cutter sweep of pressure break test specimen mixing solid cutting agent and liquid cutting agent, pressure break test specimen is cut, reduce the probability that pressure break test specimen is damaged in cutting process, thus reduce the production cost of pressure break test specimen.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the cutter sweep of a kind of pressure break test specimen that the embodiment of the present invention provides;
Fig. 2 is the structural representation of Rotable Control System in the cutter sweep of a kind of pressure break test specimen that the embodiment of the present invention provides;
Fig. 3 is a kind of cutter sweep further groove of pressure break test specimen of providing of the embodiment of the present invention and the structural representation of telescopic head;
Fig. 4 is the structural representation of telescopic head in the cutter sweep of a kind of pressure break test specimen that the embodiment of the present invention provides;
Fig. 5 is the structural representation of the cutter sweep of the another kind of pressure break test specimen that the embodiment of the present invention provides;
Fig. 6 is the schematic flow sheet of the cutting method of a kind of pressure break test specimen that the embodiment of the present invention provides;
Fig. 7 is the schematic flow sheet of the cutting method of the another kind of pressure break test specimen that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiments provide a kind of cutter sweep of pressure break test specimen, with reference to shown in Fig. 1, described preparation facilities comprises: work stage 110 and Rotable Control System 120, nozzle 130, solid cutting agent control cabinet 140, solid cutting agent container 150, travelling guide rail 160, travelling installing plate 170, liquid cutting agent ingress pipe 180, liquid cutting agent booster pump 190, fixed guide 200, fixture 210 and accumulator tank 220, wherein:
Solid cutting agent container 150 and liquid cutting agent booster pump 190 are fixed on travelling installing plate 170, and wherein, liquid cutting agent ingress pipe 180 is connected with liquid cutting agent booster pump 190, and nozzle 130 is vertically installed on the downside of liquid cutting agent booster pump 190; Solid cutting agent control cabinet 140 is vertically installed on the downside of solid cutting agent container 150; Solid cutting agent control cabinet 140 is connected with nozzle 130;
Travelling installing plate 170 is installed in the slide rail of travelling guide rail 160;
Travelling guide rail 160 is installed on the slide rail of fixed guide 200;
Fixed guide 200 is installed along the cell wall of accumulator tank 220;
Work stage 110 and Rotable Control System 120 are placed in the bottom centre in accumulator tank 220,
Fixture 210 horizontal setting is in accumulator tank inside sidewalls, and vertical with the work stage horizontal direction in work stage 110 and Rotable Control System 120.
Optionally, as shown in Figure 2, work stage 110 and Rotable Control System 120, comprising: internal fixtion back shaft 121, telescopic head 122, inner support plate 123, thrust ball bearing 124 and rotating control shaft 125; Wherein,
Work stage 110 is placed horizontally on rotating control shaft 125, and work stage 110 is fixed with rotating control shaft 125;
There are at least four grooves 1251 in rotating control shaft 125 inwall, between each groove, 1251 every predetermined angular, the corresponding through-hole groove 12511 of each groove 1251;
Telescopic head 122 is positioned at outside the axial wall of internal fixtion back shaft 121, and is positioned at same level with each groove 1251, and can be chimeric with groove 1251;
Here telescopic head 122 is positioned at the frame for movement of internal fixtion back shaft 121 place and each groove 1251, and specifically as shown in Figure 3, telescopic head 122 is embedded in groove 1251.
It is inner that inner support plate 123, thrust ball bearing 124 and internal fixtion back shaft 121 are nested in rotating control shaft 125, wherein, internal fixtion back shaft 121 is fixed on bottom accumulator tank 220, inner support plate 123 is placed horizontally on internal fixtion back shaft 121, thrust ball bearing 124 is positioned on inner support plate 123, and is connected with bottom work stage 110.
Further, as shown in Figure 4, telescopic head 122, comprising: bulb 1221, spring 1222, back of the body cap 1223 and plug 1224; Wherein,
Plug 1224 is fixed on internal fixtion back shaft 121 inside sidewalls with back of the body cap 1223;
Bulb 1221 and spring 1222 are nested in be carried on the back in cap 1223, and bulb 1221 is connected with plug 1224 by spring 1222.
Here the cutter sweep of pressure break test specimen that provides of the embodiment of the present invention, solid cutting agent is used to mix with liquid cutting agent, namely, solid cutting agent can be the high rigidity solid particles such as quartz sand, diamond dust, garnet and haydite, liquid cutting agent can be water, solid cutting agent and liquid cutting agent are mixed to form high-pressure spray by preset ratio, and then impact pressure break surface of test piece after being accelerated by nozzle, utilize the particle in solid cutting agent to realize cutting to the erosion effect of material.This incision principle is: the cutting power of the mixing jet that solid cutting agent and liquid cutting agent are formed under equal pressure condition, is greater than the cutting power of the jet of pure water, is applicable to cutting hard material.
Optionally, see Fig. 5, be applied to the cutter sweep of the pressure break test specimen shown in Fig. 1, described device also comprises: hybrid chamber 230 and mixing nozzle 240, wherein,
It is inner that nozzle 130 is nested in hybrid chamber 230;
Solid cutting agent control cabinet 140 is communicated with by conduit with hybrid chamber 230;
Mixing nozzle 240 is vertically installed on the downside of hybrid chamber 230.
Rear mixing cutting method is applicable in the cutter sweep of the pressure break test specimen shown in Fig. 5, namely the water in liquid cutting agent booster pump 190 is sprayed by mixing nozzle 240 via hybrid chamber 230 by nozzle 130, because the pressure of liquid cutting agent can generate a vacuum pressure differential in hybrid chamber 230, by this vacuum pressure differential, the solid cutting agent that solid cutting agent control cabinet 140 controls is mixed in hybrid chamber 230, finally mixed cutting agent is sprayed by mixing nozzle 240, the carrying out of pressure break sample is cut.
Embodiments provide a kind of cutting method of pressure break test specimen, see Fig. 6, be applied in the cutter sweep of the pressure break test specimen shown in Fig. 1, the method comprises:
Step 301, is positioned in work stage by pressure break sample, is fixed pressure break sample by fixture.
Step 302, according to the solid cutting parameter preset, solid cutting agent control cabinet controls the solid cutting agent in solid cutting agent container, and the liquid cutting agent controlled with liquid cutting agent booster pump mixes, and is cut pressure break sample by nozzle.
In sum, the cutting method of the pressure break test specimen that the embodiment of the present invention provides, by the cutter sweep of pressure break test specimen mixing solid cutting agent and liquid cutting agent, pressure break test specimen is cut, reduce the probability that pressure break test specimen is damaged in cutting process, thus reduce the production cost of pressure break test specimen.
Embodiments provide the cutting method of another kind of pressure break test specimen, see Fig. 7, be applied in the cutter sweep of the pressure break test specimen shown in Fig. 1 to Fig. 5, as based on the more preferred embodiment provided embodiment illustrated in fig. 6, the present embodiment, by the cutter sweep of pressure break test specimen mixing solid cutting agent and liquid cutting agent, is described in detail the process that pressure break test specimen cuts.The cutting method of this pressure break test specimen, comprising:
Step 401, is positioned in work stage by pressure break sample, is fixed pressure break sample by fixture.
Wherein, as shown in Figure 1, pressure break sample is positioned on workbench 110, by be fixed in Fig. 1 in accumulator tank 220 wall in parallel direction two fixtures 210 be fixed.
Here pressure sample take raw coal as raw material, wherein, before cutting pressure break sample, need choose in fracturing experiments district original size be greater than cutting after pressure break specimen size 30% ~ 50%, and the raw coal that profile is complete, and plane maximum for raw coal is positioned on workbench 110, and fixes to clamp raw coal by fixture 210.
Concrete, pressure break sample is positioned in work stage, by fixture, pressure break sample is fixed, comprises:
A, by the rotating control shaft in the Rotable Control System in the cutter sweep of pressure break test specimen, the work stage be connected with rotating control shaft to be rotated.
Wherein, work stage 110 is fixed on rotating control shaft 125, and can carry out 360 ° of rotations along with rotating control shaft 125, and work stage 110 rotates cutting position and the angle of determining the pressure break sample be positioned in work stage 110 according to rotating control shaft 125.
B, when rotating control shaft rotates along with the thrust ball bearing in Rotable Control System, the telescopic head in the internal fixtion back shaft in Rotable Control System is chimeric with the groove of rotating control shaft inwall, fixes the work stage that is connected with rotating control shaft.
Wherein, telescopic head 122 in internal fixtion back shaft 121 is chimeric with the groove 1251 of rotating control shaft 125 inwall, whether chimericly with groove 1251 this telescopic head 122 is observed, to ensure that the work stage 110 be connected with rotating control shaft 125 is fixed on current location by the through-hole groove 12511 in the groove 1251 shown in Fig. 2.
In the preparation facilities of pressure break test specimen provided by the invention here, the groove 1251 of rotating control shaft 125 inwall as shown in Figure 3, has 4 grooves, wherein 90 °, interval between each groove, be as the criterion with the cutting method realizing the pressure break test specimen that the method embodiment of the present invention provides, specifically do not limit.
Step 402, according to the solid cutting parameter preset, solid cutting agent control cabinet controls the solid cutting agent in solid cutting agent container, and the liquid cutting agent controlled with liquid cutting agent booster pump mixes, and is cut pressure break sample by nozzle.
Here the solid cutting parameter preset at least comprises: jet pressure, nozzle diameter, nozzle material, jet power, flow rate and fluid properties.
Wherein, in the embodiment of the present invention, jet pressure is 300 to 360Mpa, is up to 400MPa; Nozzle diameter is 0.1mm to 0.6mm; Nozzle material: tungsten carbide; Jet power: 25kW to 35kW; Flow rate: 1200m/s to 1600m/s; Fluid properties is: water mulling.Solid cutting agent type is in embodiments of the present invention: garnet; Sand compares: 5% to 10%; Solid cutting agent granularity is 80 order to 120 orders.
Concrete, according to the solid cutting parameter preset, solid cutting agent control cabinet controls the solid cutting agent in solid cutting agent container, and the liquid cutting agent controlled with liquid cutting agent booster pump mixes, and is cut, comprising by nozzle to pressure break sample:
According to the solid cutting parameter preset, travelling installing plate in the cutter sweep of pressure break test specimen is along with the movement of the travelling guide rail in the cutter sweep of pressure break test specimen, by being installed on the liquid cutting agent booster pump of travelling installing plate in travelling guide rail by liquid cutting agent, mix with the solid cutting agent in the solid cutting agent container controlled by solid cutting agent control cabinet, by nozzle, the pressure break sample in work stage is cut.
Wherein, according to the solid cutting parameter preset, the pressure break test specimen be positioned in work stage 110 is cut, cutting defective material is removed after having cut one side, and pull down fixture 210, further, using the one side after this cutting as bottom surface, reorientate other side elevations of cutting, until obtain pressure break test specimen required in fracturing experiments.
Here, in cutting process, jet pressure P and flow rate Q is adjustable,
In same pipe-line system, and in the negligible situation of difference in height, in pipeline, the energy relationship of any two sections is:
Then effluxvelocity:
Wherein, the pressure of P-fluid, MPa; The density of ρ-fluid, g/cm
3; The linear speed of V-fluid, cm/s; C-efflux coefficient (this coefficient by experiment with calculating gained).
Formula (2) is derived by formula (1) and obtains, and formula (2) computational process is as follows:
Suppose the pressure P=360MPa of fluid, fluid density ρ=1.15g/cm
3, efflux coefficient c=3200:
Then fluid line speed
Jet flow:
Q＝VA(3)
Wherein, the linear speed of V-fluid, cm/s; A-jet area is amassed, cm
2, get nozzle diameter 0.03cm.
Jet flow
Jet hydraulic power:
W＝PQ(4)
Wherein, W-jet hydraulic power, w; As Q-jet flow=65cm
3/ s; During P-jet pressure=360Mpa, jet hydraulic power W=360 × 65=23400W.
By above-mentioned calculating, can obtain:
Jet impact force:
Wherein, F-jet impact force, kN; Q-jet flow, cm
3/ s; ρ-jet media density, g/cm
3; A-jet area is amassed, cm
2.
Jet propulsive thrust:
Wherein, T-jet propulsive thrust, N; K-thrust design factor (this coefficient by experiment with calculating gained); Q-jet flow, cm
3/ s; P-jet pressure, MPa.
By above-mentioned calculating, the high-speed jet in cutting process can be controlled according to the pressure P of fluid and flow rate Q, to ensure that cutting sample can not be broken in cutting process, and the otch even uniform that cuts can be ensured.
Further, optionally, by nozzle, the pressure break sample in work stage is cut, comprising:
Step 402a, according to the liquid pressure that liquid cutting agent booster pump promotes liquid cutting agent, forms vacuum pressure differential in the hybrid chamber in the cutter sweep of pressure break test specimen.
Step 402b, according to vacuum pressure differential, the solid cutting agent in solid cutting agent solvent is mixed in liquid cutting agent by solid cutting agent control cabinet, forms solid-liquid mixing cutting agent.
Step 402c, is cut solid-liquid cutting agent the pressure break sample in work stage by mixing nozzle in the cutter sweep of pressure break test specimen.
Wherein, control the rotation of lower work stage according to the Rotable Control System in the cutter sweep of pressure break test specimen, the pressure break test specimen in work stage is cut.
Here liquid cutting agent is for water, as shown in Figure 5, high-speed water jet is formed when water passes through nozzle 130 via liquid cutting agent booster pump, and certain vacuum pressure differential is formed in hybrid chamber 230, make solid cutting agent control cabinet 140 that solid cutting agent is entered hybrid chamber 230 under the acting in conjunction of solid cutting agent self gravitation and vacuum pressure differential, and mix with high-speed water jet in hybrid chamber 230, spray finally by mixing nozzle 240 and form solid-liquid mixing cutting agent, that is, solid cutting agent water jet.
Step 403, carries out recovery cleaning by the waste material of the accumulator tank in the cutter sweep of pressure break test specimen to the pressure break test specimen after cutting.
In sum, the cutting method of the pressure break test specimen that the embodiment of the present invention provides, by the cutter sweep of pressure break test specimen mixing solid cutting agent and liquid cutting agent, pressure break test specimen is cut, the vibration brought in cutting process due to mixed cutting agent is little, ensure that pressure break test specimen is not easily broken in cutting process, and otch is smooth; On the other hand, the solid cutting parameter preset of mixed cutting agent easily adjusts, and can adjust, achieve the cutting to different material according to the attribute of cutting raw material.
In addition, after the cutting of pressure break test specimen, also comprise:
1, choose the central point of a plane of pressure break test specimen, intend well with the vertical drill delivery in this key store of the minor diameter hollow boring bit in platform drill, simulation borehole depth requires to determine with the fracturing experiments of reality;
2, the simulation wellbore hole of external diameter 15mm, long 170mm is processed into the seamless steel pipe of external diameter 15mm, internal diameter 6mm;
3, simulation well intraocular in step 1 injects epoxy glue, and the simulation wellbore hole of inserting in step 2 is waited solidifying, obtains finished product fracturing model.
Wherein curing time is 48 hours, is only described for 48 hours in the embodiment of the present invention, is as the criterion, does not specifically limit with the cutting method realizing the pressure break test specimen that the embodiment of the present invention provides.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the cutter sweep of a pressure break test specimen, it is characterized in that, described preparation facilities comprises: work stage and Rotable Control System, nozzle, solid cutting agent control cabinet, solid cutting agent container, travelling guide rail, travelling installing plate, liquid cutting agent ingress pipe, liquid cutting agent booster pump, fixed guide, fixture and accumulator tank, wherein:
Described solid cutting agent container and described liquid cutting agent booster pump are fixed on described travelling installing plate, wherein, described liquid cutting agent ingress pipe is connected with described liquid cutting agent booster pump, and described nozzle is vertically installed on the downside of described liquid cutting agent booster pump; Described solid cutting agent control cabinet is vertically installed on the downside of described solid cutting agent container; Described solid cutting agent control cabinet is connected with described nozzle;
Described travelling installing plate is installed in the slide rail of described travelling guide rail;
Described travelling guide rails assembling is on the slide rail of described fixed guide;
Described fixed guide is installed along the cell wall of described accumulator tank;
Described work stage and Rotable Control System are placed in the bottom centre in described accumulator tank;
Described fixture horizontal setting is in described accumulator tank inside sidewalls, and vertical with the described work stage horizontal direction in described work stage and Rotable Control System.
2. device according to claim 1, is characterized in that, described work stage and Rotable Control System, comprising: internal fixtion back shaft, telescopic head, inner support plate, thrust ball bearing and rotating control shaft; Wherein,
Described work stage is placed horizontally on described rotating control shaft, and described work stage and described rotating control shaft are fixed;
There are at least four grooves in described rotating control shaft inwall, each groove interval predetermined angular, the corresponding through-hole groove of described each groove;
Described telescopic head is positioned at outside the axial wall of described internal fixtion back shaft, and is positioned at same level with described each groove, and can be chimeric with described groove;
It is inner that described inner support plate, described thrust ball bearing and described internal fixtion back shaft are nested in described rotating control shaft, wherein, described internal fixtion back shaft is fixed on bottom described accumulator tank, described inner support plate level is positioned on described internal fixtion back shaft, described thrust ball bearing is positioned on described inner support plate, and is connected with bottom described work stage.
3. device according to claim 2, is characterized in that, described telescopic head, comprising: bulb, spring, back of the body cap and plug; Wherein,
Described plug and described back of the body cap are fixed on described internal fixtion back shaft inside sidewalls;
Described bulb and described spring are nested in described back of the body cap, and described bulb is connected with described plug by described spring.
4., according to the arbitrary described device of claims 1 to 3, it is characterized in that, described device also comprises: hybrid chamber and mixing nozzle, wherein,
It is inner that described nozzle is nested in described hybrid chamber;
Described solid cutting agent control cabinet is communicated with by conduit with described hybrid chamber;
Described mixing nozzle is vertically installed on the downside of described hybrid chamber.
5. a cutting method for pressure break test specimen, is characterized in that, in the cutter sweep for pressure break test specimen as claimed in claim 1, described method comprises:
Pressure break sample is positioned in described work stage, by described fixture, described pressure break sample is fixed;
According to the solid cutting parameter preset, described solid cutting agent control cabinet controls the solid cutting agent in described solid cutting agent container, and the liquid cutting agent controlled with liquid cutting agent booster pump mixes, and is cut described pressure break sample by described nozzle.
6. method according to claim 5, it is characterized in that, the solid cutting parameter that described basis is preset, described solid cutting agent control cabinet controls the solid cutting agent in described solid cutting agent container, the liquid cutting agent controlled with liquid cutting agent booster pump mixes, by described nozzle, described pressure break sample is cut, comprising:
According to described default solid cutting parameter, travelling installing plate in the cutter sweep of described pressure break test specimen is along with the movement of the travelling guide rail in the cutter sweep of described pressure break test specimen, by being installed on the liquid cutting agent booster pump of travelling installing plate in described travelling guide rail by liquid cutting agent, mix with the solid cutting agent in the described solid cutting agent container controlled by described solid cutting agent control cabinet, by described nozzle, the described pressure break sample in described work stage is cut.
7. method according to claim 6, it is characterized in that, the described liquid cutting agent booster pump by being installed on travelling installing plate in described travelling guide rail is by liquid cutting agent, mix with the solid cutting agent in the described solid cutting agent container controlled by described solid cutting agent control cabinet, by described nozzle, the described pressure break sample in described work stage is cut, comprising:
According to the liquid pressure that described liquid cutting agent booster pump promotes liquid cutting agent, in the hybrid chamber in the cutter sweep of described pressure break test specimen, form vacuum pressure differential;
According to described vacuum pressure differential, the solid cutting agent in described solid cutting agent solvent is mixed in described liquid cutting agent by described solid cutting agent control cabinet, forms solid-liquid mixing cutting agent;
By mixing nozzle in the cutter sweep of described pressure break test specimen, described solid-liquid cutting agent is cut the described pressure break sample in described work stage.
8. method according to claim 7, is characterized in that, is describedly cut the described pressure break sample in described work stage by described solid-liquid cutting agent by mixing nozzle in the cutter sweep of described pressure break test specimen, comprising:
Control the rotation of lower described work stage according to the Rotable Control System in the cutter sweep of described pressure break test specimen, the described pressure break test specimen in described work stage is cut.
9. method according to claim 8, is characterized in that, the described rotation controlling lower described work stage according to the Rotable Control System in the cutter sweep of described pressure break test specimen, before being cut by the described pressure break test specimen in described work stage, also comprises:
By the rotating control shaft in the Rotable Control System in the cutter sweep of described pressure break test specimen, the work stage be connected with described rotating control shaft is rotated;
When described rotating control shaft rotates along with the thrust ball bearing in described Rotable Control System, telescopic head in internal fixtion back shaft in described Rotable Control System is chimeric with the groove of described rotating control shaft inwall, the fixing work stage be connected with described rotating control shaft.
10. method according to claim 5, it is characterized in that, the solid cutting parameter that described basis is preset, described solid cutting agent control cabinet controls the solid cutting agent in described solid cutting agent container, the liquid cutting agent controlled with liquid cutting agent booster pump mixes, after by described nozzle described pressure break sample being cut, also comprise:
Recovery cleaning is carried out by the waste material of the accumulator tank in the cutter sweep of described pressure break test specimen to the described pressure break test specimen after cutting.
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| CN201410426005.0A CN105364724B (en) | 2014-08-26 | 2014-08-26 | The cutter device and method of pressure break test specimen |
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| CN201410426005.0A CN105364724B (en) | 2014-08-26 | 2014-08-26 | The cutter device and method of pressure break test specimen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453627A (en) * | 2018-02-05 | 2018-08-28 | 中国石油化工股份有限公司胜利油田分公司 | A kind of high-pressure grinding material water jet rock coring drilling machine |
| CN109318141A (en) * | 2018-11-05 | 2019-02-12 | 浙江瑞昭科技有限公司 | A kind of fixation device for fastener production |
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| US20030148709A1 (en) * | 2002-02-05 | 2003-08-07 | The Johns Hopkins University | Porous, lubricated nozzle for abrasive fluid suspension jet |
| JP4310504B2 (en) * | 1999-02-25 | 2009-08-12 | Ｔｄｋ株式会社 | Θ-axis adjustment mechanism for workpiece mounting table |
| CN102519769A (en) * | 2011-12-21 | 2012-06-27 | 中联煤层气有限责任公司 | Coal sample preparation device for true three-dimensional permeability determination |
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| US4656791A (en) * | 1984-09-27 | 1987-04-14 | Libbey-Owens-Ford Company | Abrasive fluid jet cutting support |
| JP4310504B2 (en) * | 1999-02-25 | 2009-08-12 | Ｔｄｋ株式会社 | Θ-axis adjustment mechanism for workpiece mounting table |
| US20030148709A1 (en) * | 2002-02-05 | 2003-08-07 | The Johns Hopkins University | Porous, lubricated nozzle for abrasive fluid suspension jet |
| CN102519769A (en) * | 2011-12-21 | 2012-06-27 | 中联煤层气有限责任公司 | Coal sample preparation device for true three-dimensional permeability determination |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453627A (en) * | 2018-02-05 | 2018-08-28 | 中国石油化工股份有限公司胜利油田分公司 | A kind of high-pressure grinding material water jet rock coring drilling machine |
| CN109318141A (en) * | 2018-11-05 | 2019-02-12 | 浙江瑞昭科技有限公司 | A kind of fixation device for fastener production |
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| Publication number | Publication date |
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| CN105364724B (en) | 2017-12-05 |
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