CN114112846B - Rock permeability measuring device for geology - Google Patents
Rock permeability measuring device for geology Download PDFInfo
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- CN114112846B CN114112846B CN202111402224.1A CN202111402224A CN114112846B CN 114112846 B CN114112846 B CN 114112846B CN 202111402224 A CN202111402224 A CN 202111402224A CN 114112846 B CN114112846 B CN 114112846B
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- perforating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
Abstract
The invention relates to a rock permeability measuring device, in particular to a rock permeability measuring device for geology, which comprises a main supporting frame, a fixed cylinder, a supporting sliding rail frame, a rotating cylinder, a blocking ring and the like; a fixed cylinder is fixedly arranged above the main supporting frame, a supporting sliding rail frame is fixedly arranged on the top surface of the fixed cylinder, a rotating cylinder is rotatably connected to the bottom of the fixed cylinder, the rotating cylinder is rotatably connected with the main supporting frame, and a blocking ring is fixedly connected to the bottom of the rotating cylinder. The sliding circular frame can move downwards to squeeze air in the fixed cylinder and the rotating cylinder under the influence of the gravity of the weight, and gas or liquid in the fixed cylinder and the rotating cylinder gradually infiltrates through the rock sample, so that the device can measure the gas permeability and the liquid permeability of the rock sample.
Description
Technical Field
The invention relates to a rock permeability measuring device, in particular to a rock permeability measuring device for geology.
Background
The rock permeability is the ability of fluid to flow in rock under a certain pressure difference, the rock seepage has an important influence on the rock mechanical property, the rock seepage can change the stress condition of the rock, and the rock deformation, fracture, softening, mud or erosion are caused, so that the stability of the rock mass is endangered, the permeability is a parameter for representing the gas or liquid conducting ability of soil or the rock, and in the petroleum and natural gas exploration field, the permeability is an important index for measuring the fluid passing allowing ability of a rock core, and the rock permeability directly influences the yield of oil and gas wells.
The quality of the permeability of the rock is generally expressed by the value of the permeability, the method for measuring the permeability of the rock is based on Darcy's law, the permeability is measured by adopting a permeameter with single structure at present, and one set of permeameter can only measure the permeability of the rock by using gas or liquid, so that only one parameter of the gas permeability or the liquid permeability can be measured, the pressure cannot be regulated by the existing permeameter, the measurement of the permeability of the rock under different stress conditions cannot be completed, the tightness between the permeameter and the rock is difficult to be ensured, and the measured permeability value is easy to be inaccurate.
Disclosure of Invention
Therefore, there is a need for a device for measuring the permeability of rock for geology, which can measure the gas permeability and the liquid permeability of a rock sample, can enhance the tightness between the rock sample and a detection device, and can measure the permeability of the rock under different stress conditions, so as to solve the problems.
In view of the above, the present invention provides a rock permeability measurement device for geology, comprising a main support frame, and further comprising:
the fixed cylinder is fixedly arranged above the main supporting frame, the supporting sliding rail frame is fixedly arranged on the top surface of the fixed cylinder, the rotary cylinder is rotationally connected to the bottom of the fixed cylinder, and the rotary cylinder is rotationally connected with the main supporting frame; the bottom of the rotary cylinder is fixedly connected with the baffle ring;
the pressure sensor is fixedly arranged below the rotating cylinder and is used for detecting the pressure in the rotating cylinder;
the main support frame is fixedly provided with an electric push rod for driving;
the pressure control assembly is arranged in the fixed cylinder and is used for applying pressure to the rock sample;
and the cylinder sealing assembly is fixedly arranged on the main support frame and is used for sealing the rotary cylinder.
More preferably, the bottom surface of the blocking ring is in an uneven shape, so that the friction force between the blocking ring and the rock sample is increased to the greatest extent, the blocking ring is tightly attached to the rock sample, and the function of fully isolating the air in the detection rotating cylinder is achieved.
More preferably, the pressure control assembly comprises a sliding circular frame, a distance sensor, weights and a limiting device, wherein the sliding circular frame is connected in the fixed cylinder in a lifting manner, the distance sensor is arranged on the inner wall of the fixed cylinder, three weights are placed in the middle of the sliding circular frame, and the limiting device is connected to the supporting sliding rail frame in a sliding manner.
More preferably, the limiting device comprises a reset frame and a special-shaped transmission frame, the support sliding rail frame is connected with the reset frame in a sliding mode, the bottom surface of the reset frame is flush with the top surface of the fixed cylinder, the special-shaped transmission frame is welded at the top end of the telescopic shaft of the electric push rod, the special-shaped transmission frame is connected with the main support frame in a sliding mode, and the reset frame is in limiting fit with the special-shaped transmission frame.
More preferably, the cylinder airtight assembly comprises a sliding rail plate, a special-shaped extrusion frame, a reset spring, a fixed perforated frame and a perforated supporting cylinder, wherein the sliding rail plate is fixedly arranged on the main supporting frame, the special-shaped extrusion frame is connected to the sliding rail plate in a sliding manner, the special-shaped transmission frame is contacted with the special-shaped extrusion frame, the reset spring is connected between the special-shaped extrusion frame and the sliding rail plate, the fixed perforated frame is fixedly arranged on the main supporting frame, the perforated supporting cylinder is connected to the fixed perforated frame in a lifting manner, and the perforated supporting cylinder is contacted with the special-shaped extrusion frame.
More preferably, the device further comprises a liquid discharge assembly, wherein the liquid discharge assembly is arranged below the rotary cylinder, the liquid discharge assembly comprises a discharge pipe, a discharge electromagnetic valve, a discharge frame and a water inlet electromagnetic valve, the discharge pipe is communicated below the rotary cylinder, the discharge electromagnetic valve is arranged on the discharge pipe, the discharge frame is arranged on the fixed perforated frame, the discharge frame is connected with the perforated support cylinder in a sliding mode, and the water inlet electromagnetic valve is arranged below the fixed cylinder.
More preferably, the device further comprises a sealing complement assembly, wherein the sealing complement assembly is arranged below the outer wall of the rotary cylinder and comprises a limiting rod frame, a sliding hole opening frame, a U-shaped sliding rail frame, a hole opening weight block, a sliding circular pipe, a supporting sliding frame and a paraffin rod, the limiting rod frame is fixedly connected below the outer wall of the rotary cylinder, the sliding hole opening frame is connected to the limiting rod frame in a sliding mode, the U-shaped sliding rail frame is connected to the sliding hole opening frame in a sliding mode, the hole opening weight block is connected to the sliding hole opening frame in the same sliding mode, the hole opening weight block is in contact with the U-shaped sliding rail frame, the sliding circular pipe is connected to the sliding circular pipe in the sliding circular pipe, and the paraffin rod is sleeved in the supporting sliding frame and connected to the sliding hole opening frame in a sliding mode.
More preferably, the supporting sliding frame is made of synthetic rubber, has high elasticity and is used for fully clamping the paraffin rod.
More preferably, the paraffin coating device further comprises a paraffin coating assembly, wherein the paraffin coating assembly is arranged on the main support frame, the paraffin coating assembly comprises a sliding limit frame, a motor, a spur gear, a slotted sliding frame, an extrusion spring, a rubber wheel with a clamping column, a pushing plate frame and a supporting spring, the sliding limit frame is connected on the main support frame in a sliding mode, the special-shaped transmission frame is fixedly connected with the sliding limit frame, the motor is fixedly installed on the main support frame, the spur gear is fixedly connected on an output shaft of the motor, the spur gear is fixedly connected above the rotating cylinder, the spur gear is meshed with the spur gear, the slotted sliding frame is connected with the slotted sliding frame in a sliding mode, the extrusion spring is connected between the slotted sliding frame and the slotted sliding frame, the rubber wheel with the clamping column is connected on the slotted sliding frame, the pushing plate frame is in sliding fit with the pushing plate frame, and the supporting spring is connected between the pushing plate frame and the limiting rod frame.
More preferably, the device further comprises a friction ring, and the friction ring is fixedly connected to the top surface of the open-pore supporting cylinder.
The beneficial effects of the invention are as follows:
1. the sliding circular frame can move downwards to squeeze air in the fixed cylinder and the rotating cylinder under the influence of the gravity of the weight, and gas or liquid in the fixed cylinder and the rotating cylinder gradually infiltrates through the rock sample, so that the device can measure the gas permeability and the liquid permeability of the rock sample.
2. Through the distance sensor who sets up, distance sensor is used for detecting the distance between self and the slip circular frame, and the staff of being convenient for clearly judges the permeability of rock sample through the distance between distance sensor and the slip circular frame, and then reaches the purpose of survey to rock sample permeability.
3. Through the paraffin stick that sets up, before detecting rock sample permeability, make the paraffin stick rotate round around rotating the drum and apply paraffin on rock sample surface, can strengthen the seal between rock sample and the rotating drum, avoid taking place to leak when detecting rock sample permeability.
4. The staff can place the weight according to the demand to according to the quantity of placing the weight to the size of slip circular frame applied pressure is adjusted, and then adjusts later stage slip circular frame and to the air pressurization size, makes this equipment can carry out the measurement of permeability to the rock sample under different stress conditions.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a schematic perspective view of a first embodiment of a pressure control assembly according to the present invention.
Fig. 4 is a schematic perspective view of a first part of the present invention.
Fig. 5 is a schematic view showing a second perspective structure of the pressure control assembly of the present invention.
Fig. 6 is a schematic perspective view of a second part of the present invention.
Fig. 7 is a schematic perspective view of a cylinder closure assembly according to the present invention.
Fig. 8 is a schematic perspective view of a first portion of a liquid discharge assembly according to the present invention.
Fig. 9 is a schematic perspective view of a first portion of a cylinder closure assembly according to the present invention.
Fig. 10 is a schematic perspective view of a second portion of the liquid discharge assembly of the present invention.
FIG. 11 is a schematic perspective view of the airtight complement component of the present invention.
FIG. 12 is a schematic view of a partial perspective view of a seal complement assembly of the present invention.
Fig. 13 is a schematic perspective view of a first portion of a paraffin applicator assembly of the present invention.
Fig. 14 is a schematic perspective view of a second portion of a paraffin applicator assembly of the present invention.
Fig. 15 is a schematic perspective view of a third portion of a paraffin applicator assembly of the present invention.
FIG. 16 is a schematic perspective view of a second portion of a cylinder closure assembly of the present invention.
Reference numerals illustrate: the device comprises a main support frame 1, a fixed cylinder 21, a support slide rail frame 22, a rotary cylinder 23, a blocking ring 24, a pressure sensor 25, a push rod 26, a pressure control assembly 3, a sliding circular frame 31, a distance sensor 32, a weight 33, a reset frame 34, a special-shaped transmission frame 35, a cylinder sealing assembly 4, a slide rail plate 41, a special-shaped extrusion frame 42, a return spring 43, a fixed perforated frame 44, a perforated support cylinder 45, a liquid discharge assembly 5, a discharge pipe 51, a discharge valve 52, a push rod 53, a water inlet solenoid 54, a sealing compensation assembly 6, a limiting rod 61, a sliding perforated frame 62, a U-shaped slide rail frame 63, a sliding circular frame 64, a sliding circular tube 65, a supporting sliding frame 651, a paraffin rod 66, a paraffin wax applying assembly 7, a sliding limiting frame 71, a motor 72, a straight gear 73, a straight gear 74, a straight gear 75, a grooved sliding frame 76, a clamping spring 77, a clamping rubber cylinder 79, a friction ring 79, and a support ring 8.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The utility model provides a rock permeability measuring device for geology, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 13, fig. 16, including main support frame 1, fixed cylinder 21, support slide rail frame 22, rotating cylinder 23, barrier ring 24, pressure sensor 25, electric putter 26, pressure control subassembly 3 and cylinder airtight subassembly 4, fixed cylinder 21 is installed to main support frame 1 top surface fixed mounting, fixed cylinder 21 top surface fixed mounting has support slide rail frame 22, fixed cylinder 21 bottom swivelling type is connected with rotating cylinder 23, rotating cylinder 23 and main support frame 1 swivelling type are connected, rotating cylinder 23 bottom fixed connection has barrier ring 24, barrier ring 24 is used for sealing the gap between rock sample and the rotating cylinder 23, pressure sensor 25 fixed mounting is in rotating cylinder 23 below, pressure sensor 25 is used for detecting the inside of rotating cylinder 23, fixed mounting has electric putter 26 on the main support frame 1, pressure control subassembly 3 sets up in fixed cylinder 21, pressure control subassembly 3 is used for controlling the size of applied pressure, main support frame 1 is fixed airtight subassembly 4.
The pressure control assembly 3 comprises a sliding circular frame 31, a distance sensor 32, weights 33, a reset frame 34 and a special-shaped transmission frame 35, wherein the sliding circular frame 31 is connected in the fixed cylinder 21 in a lifting manner, the distance sensor 32 is fixedly arranged on the inner wall of the fixed cylinder 21, the distance sensor 32 is used for detecting the distance between the pressure control assembly and the sliding circular frame 31, three weights 33 are arranged in the middle of the sliding circular frame 31, the reset frame 34 is connected to the supporting sliding rail frame 22 in a sliding manner, the reset frame 34 is used for clamping the sliding circular frame 31, the bottom surface of the reset frame 34 is flush with the top surface of the fixed cylinder 21, the special-shaped transmission frame 35 is welded at the top end of a telescopic shaft of the electric push rod 26, the special-shaped transmission frame 35 is connected with the main supporting frame 1 in a sliding manner, and the reset frame 34 is in limit fit with the special-shaped transmission frame 35.
The cylinder airtight assembly 4 comprises a sliding rail plate 41, a special-shaped extrusion frame 42, a return spring 43, a fixed perforated frame 44 and a perforated support cylinder 45, wherein the sliding rail plate 41 is fixedly installed on the main support frame 1, the special-shaped extrusion frame 42 is connected to the sliding rail plate 41 in a sliding manner, the special-shaped transmission frame 35 is in contact with the special-shaped extrusion frame 42, the special-shaped transmission frame 35 is used for blocking the special-shaped extrusion frame 42, the return spring 43 is connected between the special-shaped extrusion frame 42 and the sliding rail plate 41, the fixed perforated frame 44 is fixedly installed on the main support frame 1, the perforated support cylinder 45 is connected to the fixed perforated frame 44 in a lifting manner, the perforated support cylinder 45 is in contact with the special-shaped extrusion frame 42, and the special-shaped extrusion frame 42 is used for supporting the perforated support cylinder 45.
When the permeability of the rock sample is required to be detected, a worker manually controls the electric push rod 26 to shrink, the electric push rod 26 shrinks to drive the special-shaped transmission frame 35 to move downwards, the special-shaped transmission frame 35 can push the reset frame 34 to move towards the direction close to the electric push rod 26, the reset frame 34 clamps the sliding circular frame 31, the worker places the weights 33 on the sliding circular frame 31, the size of applying pressure to the sliding circular frame 31 can be adjusted according to the number of the placed weights 33, and then the air pressurization size of the sliding circular frame 31 in the later stage can be adjusted. The special-shaped transmission frame 35 then no longer blocks the special-shaped extrusion frame 42, the reset spring 43 in a compressed state resets to drive the special-shaped extrusion frame 42 to move towards the direction away from the fixed perforated frame 44, the special-shaped extrusion frame 42 no longer supports the perforated support cylinder 45, the perforated support cylinder 45 moves downwards under the influence of gravity, and a worker places a rock sample on the top surface of the perforated support cylinder 45.
The worker manually controls the electric push rod 26 to extend, the electric push rod 26 extends to drive the special-shaped transmission frame 35 to move upwards, the special-shaped transmission frame 35 can push the special-shaped extrusion frame 42 to move towards the direction close to the fixed perforated frame 44, the special-shaped extrusion frame 42 pushes the perforated support cylinder 45 and the rock sample to move upwards, the rock sample is enabled to be in contact with the blocking ring 24, and the blocking ring 24 can seal gaps between the rock sample and the rotating cylinder 23. The deformed transmission frame 35 pushes the reset frame 34 to move towards the direction away from the electric push rod 26, so that the reset frame 34 does not clamp the sliding circular frame 31, the sliding circular frame 31 can move downwards to squeeze air in the fixed cylinder 21 and the rotating cylinder 23 under the influence of the gravity of the weight 33, and air in the fixed cylinder 21 and the rotating cylinder 23 can flow downwards through holes in a rock sample. The distance sensor 32 is used for detecting the distance between the distance sensor 32 and the sliding circular frame 31, the distance sensor 32 can transmit detection data to a computer end, after a certain time, gas gradually permeates through the rock sample, the sliding circular frame 31 gradually moves downwards, and staff can judge the permeability of the rock sample through the distance between the distance sensor 32 and the sliding circular frame 31.
Example 2
On the basis of embodiment 1, as shown in fig. 8, 9 and 10, the device further comprises a liquid discharge assembly 5, the liquid discharge assembly 5 is arranged below the rotary cylinder 23, the liquid discharge assembly 5 is used for adding and discharging water, the liquid discharge assembly 5 comprises a discharge pipe 51, a discharge electromagnetic valve 52, a discharge rack 53 and a water inlet electromagnetic valve 54, the discharge pipe 51 is communicated below the rotary cylinder 23, the discharge electromagnetic valve 52 is arranged on the discharge pipe 51, the discharge rack 53 for water delivery is arranged on the fixed perforated rack 44, the discharge rack 53 is connected with the perforated support cylinder 45 in a sliding mode, and the water inlet electromagnetic valve 54 for water inlet is arranged below the fixed cylinder 21.
The water inlet electromagnetic valve 54 is connected with an external water inlet pipe, when a rock sample is in contact with the blocking ring 24, when the reset frame 34 clamps the sliding circular frame 31, a worker controls the electric push rod 26 to stop stretching and opens the water inlet electromagnetic valve 54, the external water inlet pipe conveys water into the fixed cylinder 21 and the rotating cylinder 23 through the water inlet electromagnetic valve 54, when the water level reaches one third of the rotating cylinder 23, the worker closes the water inlet electromagnetic valve 54, the external water inlet pipe does not convey water into the fixed cylinder 21 and the rotating cylinder 23 any more, then the worker continues to control the electric push rod 26 to stretch, so that the special-shaped transmission frame 35 pushes the reset frame 34 to move in the direction away from the electric push rod 26, the reset frame 34 does not clamp the sliding circular frame 31 any more, the sliding circular frame 31 can move downwards under the influence of gravity of the weights 33, the sliding circular frame 31 extrudes air in the fixed cylinder 21 and the rotating cylinder 23, the water in the rotating cylinder 23 can permeate through holes in the rock sample, and after a certain time, the worker judges the permeability of the rock sample through data detected by the distance sensor 32. The drain frame 53 is connected to an external drain pipe, and after the completion of the detection, the operator opens the drain solenoid valve 52 to drain the water in the rotary cylinder 23 through the drain pipe 51 and the drain solenoid valve 52, and the drained water is drained from the external drain pipe through the drain frame 53.
Example 3
On the basis of embodiment 1, as shown in fig. 11, 12, 14 and 15, the device further comprises a sealing complement component 6, the sealing complement component 6 is arranged below the outer wall of the rotary cylinder 23, the sealing complement component 6 is used for enhancing the sealing performance between a rock sample and the rotary cylinder 23, the sealing complement component 6 comprises a limiting rod frame 61, a sliding open hole frame 62, a U-shaped sliding rail frame 63, an open hole weight 64, a sliding circular tube 65, a supporting sliding frame 651 and a paraffin rod 66, the limiting rod frame 61 is fixedly connected below the outer wall of the rotary cylinder 23, the sliding open hole frame 62 is connected on the limiting rod frame 61 in a sliding manner, the limiting rod frame 61 is used for blocking the sliding open hole frame 62, the sliding open hole frame 62 is connected with the U-shaped sliding rail frame 63 in a sliding manner, the opening weight 64 is connected with the sliding open hole frame 62 in a sliding manner, the sliding open hole frame 63 is connected with the sliding frame 65, the supporting circular tube 651 is arranged in the sliding frame 65, the paraffin rod 66 is sleeved in the supporting sliding frame, and the paraffin rod 66 is used for clamping the paraffin rod 66 on the surface of the sliding open hole frame 62.
When the electric push rod 26 is retracted to the lowest position, a worker manually loads the paraffin rod 66 between the sliding perforated frame 62 and the supporting sliding frame 651, the supporting sliding frame 651 clamps the paraffin rod 66, then the perforated weight 64 is placed on the sliding perforated frame 62, under the gravity action of the perforated weight 64, the perforated weight 64 pushes the U-shaped sliding rail frame 63 and the upper device thereof to move downwards, so that the paraffin rod 66 is tightly attached to the surface of a rock sample, then the worker manually rotates the U-shaped sliding rail frame 63 and the upper device thereof, the U-shaped sliding rail frame 63 and the upper device thereof rotate for one circle, further the paraffin rod 66 coats paraffin on the surface of the rock sample, and the tightness between the rock sample and the rotating cylinder 23 can be further enhanced through the coated paraffin.
Example 4
On the basis of the embodiment 1, as shown in fig. 13, 14 and 15, the paraffin coating device further comprises a paraffin coating assembly 7, the paraffin coating assembly 7 is arranged on the main support frame 1, the paraffin coating assembly 7 is used for coating paraffin on a rock sample, the paraffin coating assembly 7 comprises a sliding limit frame 71, a motor 72, a spur gear 73, a spur gear 74, a slotted sliding frame 75, a pressing spring 76, a rubber wheel 77 with a clamping column, a push plate frame 78 and a supporting spring 79, the sliding limit frame 71 is connected to the main support frame 1 in a sliding mode, the special-shaped transmission frame 35 is fixedly connected with the sliding limit frame 71, a motor 72 for driving is fixedly arranged on the main support frame 1, a spur gear 73 is fixedly connected to an output shaft of the motor 72, a spur gear 74 is fixedly connected above the rotating cylinder 23, the spur gear 73 is meshed with the spur gear 74, the slotted sliding frame 75 is connected with the slotted sliding frame 62 in a sliding mode, the pressing spring 76 is connected between the slotted sliding frame 75 and the slotted sliding frame 75, the rubber wheel 77 with the clamping column is connected to the limiting rod frame 61 in a sliding mode, the push plate frame 78 is connected with the clamping column 77 with the clamping column, the push plate frame 78 is matched with the limiting frame 78, and the limiting frame 78 is matched with the sliding limit frame 71, and the limiting frame 78 is matched with the limiting frame 71.
When the special-shaped transmission frame 35 moves downwards, the special-shaped transmission frame 35 drives the sliding limiting frame 71 to move downwards, the sliding limiting frame 71 pushes the pushing plate frame 78 to move downwards, the pushing plate frame 78 does not block the rubber wheel 77 with the clamping column, the rubber wheel 77 with the clamping column and an upper device thereof are influenced by gravity to move downwards, the paraffin rod 66 is in contact with the surface of a rock sample, then the limiting rod frame 61 blocks the sliding perforated frame 62, the pushing plate frame 78 continues to be separated from the rubber wheel 77 with the clamping column, and under the gravity action of the perforating weight 64, the perforating weight 64 pushes the U-shaped sliding rail frame 63 and the upper device thereof to move downwards, so that the paraffin rod 66 is tightly attached to the surface of the rock sample. Then the manual motor 72 of starting of staff, motor 72 output shaft rotation drive spur gear 73 rotates, spur gear 73 drives spur gear 74 and rotates drum 23 rotation, rotates drum 23 and drives spacing pole frame 61 and last device rotation, and slip spacing frame 71 is spacing to push pedal frame 78 for paraffin stick 66 coats rock sample surface, has saved the trouble that needs manual rotation U-shaped slide rail frame 63 and last device, then the staff turns off motor 72, makes motor 72 stop the operation. When the special-shaped transmission frame 35 moves upwards, the special-shaped transmission frame 35 drives the sliding limiting frame 71 to move upwards, the sliding limiting frame 71 pushes the pushing plate frame 78 to move upwards, and the pushing plate frame 78 drives the rubber wheel 77 with the clamping column to move upwards for resetting.
Example 5
On the basis of the embodiment 1, as shown in fig. 16, the device further comprises a friction ring 8, wherein the friction ring 8 is fixedly connected to the top surface of the perforated support cylinder 45, and the friction ring 8 is used for increasing friction between the friction ring 8 and a rock sample.
The staff places the rock sample on friction ring 8, can increase the friction between friction ring 8 and the rock sample, and it can follow paraffin stick 66 rotation when avoiding scribbling paraffin to rock sample surface, prevents that the rock sample position can take place the skew and produces the problem that can't guarantee the airtight between rotation drum 23 and the rock sample.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. Rock permeability measuring device for geology, including main carriage (1), characterized by still including: a fixed cylinder (21), a fixed cylinder (21) is fixedly arranged above the main support frame (1), a support slide rail frame (22) is fixedly arranged on the top surface of the fixed cylinder (21), a rotary cylinder (23) is rotatably connected to the bottom of the fixed cylinder (21), and the rotary cylinder (23) is rotatably connected with the main support frame (1);
the blocking ring (24) is fixedly connected with the bottom of the rotary cylinder (23);
the pressure sensor (25), the pressure sensor (25) is fixedly installed below the rotary cylinder (23), and the pressure sensor (25) is used for detecting the pressure inside the rotary cylinder (23);
an electric push rod (26), wherein the main support frame (1) is fixedly provided with the electric push rod (26) for driving;
a pressure control assembly (3), the pressure control assembly (3) being arranged in the stationary cylinder (21), the pressure control assembly (3) being adapted to apply pressure to the rock sample;
the cylinder sealing assembly (4) is fixedly arranged on the main support frame (1), and the cylinder sealing assembly (4) is used for sealing the rotary cylinder (23);
the pressure control assembly (3) comprises a sliding circular frame (31), a distance sensor (32), weights (33) and a limiting device, wherein the sliding circular frame (31) is connected in the fixed cylinder (21) in a lifting manner, the distance sensor (32) is arranged on the inner wall of the fixed cylinder (21), the weights (33) are placed in the middle of the sliding circular frame (31), and the limiting device is connected to the supporting sliding rail frame (22) in a sliding manner;
the device comprises a rotary cylinder (23), and is characterized by further comprising a sealing complement component (6), wherein the sealing complement component (6) is arranged below the outer wall of the rotary cylinder (23), the sealing complement component (6) comprises a limiting rod frame (61), a sliding perforating frame (62), a U-shaped sliding rail frame (63), a perforating weight (64), a sliding round pipe (65), a supporting sliding frame (651) and a paraffin rod (66), the limiting rod frame (61) is fixedly connected below the outer wall of the rotary cylinder (23), the sliding perforating frame (62) is connected with the sliding perforating frame (62) in a sliding mode on the limiting rod frame (61), the perforating weight (64) is also connected with the sliding perforating frame (62) in a sliding mode, the perforating weight (64) is in contact with the U-shaped sliding rail frame (63), the sliding round pipe (65) is connected with the supporting sliding frame (651), the paraffin rod (66) is connected with the sliding perforating frame (62) in a sliding mode;
the supporting sliding frame (651) is made of synthetic rubber, the supporting sliding frame (651) has high elasticity, and the supporting sliding frame (651) is used for fully clamping the paraffin rod (66);
the paraffin coating device comprises a main support frame (1), the paraffin coating device (7) is arranged on the main support frame (1), the paraffin coating device (7) comprises a sliding limit frame (71), a motor (72), a spur gear (73), a spur gear (74), a slotted sliding frame (75), an extrusion spring (76), a rubber wheel (77) with a clamping post, a push plate frame (78) and a supporting spring (79), the sliding limit frame (71) is connected on the main support frame (1) in a sliding manner, a special-shaped transmission frame (35) is fixedly connected with the sliding limit frame (71), a motor (72) is fixedly arranged on the main support frame (1), the spur gear (73) is fixedly connected on an output shaft of the motor (72), the spur gear (74) is fixedly connected above a rotating cylinder (23), the spur gear (73) is meshed with the spur gear (74), the slotted sliding frame (62) is connected with the slotted sliding frame (75), the extrusion spring (76) is connected between the slotted sliding frame (75) and the slotted sliding frame (62), the rubber wheel (77) is rotatably connected with the clamping post (77), the push plate frame (78) is connected with the rubber wheel (78) in a contact manner, the pushing plate frame (78) is in sliding fit with the sliding limiting frame (71), and a supporting spring (79) is connected between the pushing plate frame (78) and the limiting rod frame (61);
the limiting device comprises a reset frame (34) and a special-shaped transmission frame (35), the reset frame (34) is connected to the support sliding rail frame (22) in a sliding mode, the bottom surface of the reset frame (34) is flush with the top surface of the fixed cylinder (21), the special-shaped transmission frame (35) is welded at the top end of a telescopic shaft of the electric push rod (26), the special-shaped transmission frame (35) is connected with the main support frame (1) in a sliding mode, and the reset frame (34) is in limiting fit with the special-shaped transmission frame (35);
the cylinder sealing assembly (4) comprises a sliding rail plate (41), a special-shaped extrusion frame (42), a reset spring (43), a fixed perforating frame (44) and a perforating support cylinder (45), wherein the sliding rail plate (41) is fixedly arranged on the main support frame (1), the special-shaped extrusion frame (42) is connected to the sliding rail plate (41) in a sliding manner, a special-shaped transmission frame (35) is contacted with the special-shaped extrusion frame (42), the reset spring (43) is connected between the special-shaped extrusion frame (42) and the sliding rail plate (41), the fixed perforating frame (44) is fixedly arranged on the main support frame (1), the perforating support cylinder (45) is connected to the fixed perforating frame (44) in a lifting manner, and the perforating support cylinder (45) is contacted with the special-shaped extrusion frame (42);
when the permeability of rock samples needs to be detected, the electric putter (26) is controlled to shrink manually by a worker, the electric putter (26) shrinks and drives the special-shaped transmission frame (35) to move downwards, the special-shaped transmission frame (35) can push the reset frame (34) to move towards the direction close to the electric putter (26) firstly, the reset frame (34) clamps the sliding circular frame (31), the worker places weights (33) on the sliding circular frame (31), the size of applying pressure to the sliding circular frame (31) can be adjusted according to the number of placed weights (33), the air pressurization size of the sliding circular frame (31) at the later stage is adjusted, then the special-shaped transmission frame (35) does not block the special-shaped extrusion frame (42) any more, the reset spring (43) in a compressed state resets and drives the special-shaped extrusion frame (42) to move towards the direction far away from the fixed perforated frame (44), the perforated support cylinder (45) is not supported any more, the perforated support cylinder (45) moves downwards under the influence of gravity, and the worker places the samples on the top surface of the perforated support cylinder (45).
2. The rock permeability measuring device for geology according to claim 1, wherein the bottom surface of the blocking ring (24) is in a concave-convex shape, so that friction force between the blocking ring and the rock sample is maximized, the blocking ring (24) is tightly attached to the rock sample, and the blocking ring plays a role in fully isolating air in the detection rotating cylinder (23).
3. The rock permeability measuring device for geology according to claim 1, further comprising a liquid discharge assembly (5), wherein the liquid discharge assembly (5) is disposed below the rotary cylinder (23), the liquid discharge assembly (5) comprises a discharge pipe (51), a discharge solenoid valve (52), a discharge rack (53) and a water inlet solenoid valve (54), the discharge pipe (51) is communicated below the rotary cylinder (23), the discharge pipe (51) is provided with the discharge solenoid valve (52), the fixed orifice rack (44) is provided with the discharge rack (53), the discharge rack (53) is slidably connected with the orifice support cylinder (45), and the water inlet solenoid valve (54) is disposed below the fixed cylinder (21).
4. A rock permeability measuring device for geology according to claim 3, further comprising a friction ring (8), the friction ring (8) being fixedly connected to the top surface of the open-cell support cylinder (45).
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