CN104931384A - Vacuum metering device - Google Patents
Vacuum metering device Download PDFInfo
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- CN104931384A CN104931384A CN201510363005.5A CN201510363005A CN104931384A CN 104931384 A CN104931384 A CN 104931384A CN 201510363005 A CN201510363005 A CN 201510363005A CN 104931384 A CN104931384 A CN 104931384A
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Abstract
The invention provides a vacuum metering device and belongs to the technical field of gas metering. The vacuum metering device comprises a desorbing device, a metering device and a sampling bottle, the desorbing device comprises a reaction tank used for containing a sample and a heating device used for heating the reaction tank, the metering device comprises a first metering barrel, a first transition barrel, a second metering barrel, a second transition barrel, an air pump and a vacuum pump which are communicated with one another through a pipeline, multiple pneumatic valves are arranged on the pipeline, the first metering barrel is communicated with the reaction tank, and the second metering barrel is communicated with the sampling bottle. The vacuum metering device is of a double-metering-barrel structure, thereby being capable of measuring gas large in size in one step, and is simple and convenient to operate, few in measuring error and more accurate in result.
Description
Technical field
The present invention relates to gas dosing technical field, in particular to vacuumatic measuring device.
Background technology
At present, market has had some measure the equipment of coal seam or shale air content for desorb, but the most structure of these equipment is simple, the gas volume of each measurement is limited, therefore usually need repetitive measurement to add up, cause operation not convenient, measuring error is large.
Summary of the invention
The object of the present invention is to provide a kind of vacuumatic measuring device, to improve the problems referred to above.
The present invention is achieved in that
This vacuum measuring apparatus comprises desorption apparatus, measuring apparatus and sampling bottle, described desorption apparatus comprises for the retort of splendid attire sample and the heating arrangement for heating retort, described measuring apparatus comprises the first metering cylinder, First Transition cylinder, second metering cylinder, second transitional cylinder, air pump and vacuum pump, described first metering cylinder top to be communicated with described retort by the first pipeline and the first pipeline is provided with the first pneumatic valve, the bottom of described first metering cylinder is communicated with bottom described First Transition cylinder by second pipe, the top of described First Transition cylinder to be communicated with described air pump by the 3rd pipeline and described 3rd pipeline is provided with the 3rd pneumatic valve, described First Transition cylinder top to be also communicated with described vacuum pump by the 4th pipeline and described 4th pipeline is provided with the 4th pneumatic valve, the top of described First Transition cylinder to be also communicated with extraneous air by the 5th pipeline and described 5th pipeline is provided with the 5th pneumatic valve, the top of described first metering cylinder to be also communicated with described second metering cylinder top by the 6th pipeline and described 6th pipeline is provided with the 6th pneumatic valve, be communicated with bottom described second transitional cylinder by the 7th pipeline bottom described second metering cylinder, described second transitional cylinder top to be communicated with described air pump by the 8th pipeline and described 8th pipeline is provided with the 8th pneumatic valve, described second transitional cylinder top to be communicated with extraneous air by the 9th pipeline and described 9th pipeline is provided with the 9th pneumatic valve, described second metering cylinder top to be communicated with described sampling bottle by the tenth pipeline and described tenth pipeline is provided with the tenth pneumatic valve.
As preferably, described retort comprises bottom seal, open-topped tank body and the top cover for blocking opening, described tank wall top is provided with support ring, described top cover is removably connected on described tank body, described first pipeline stretches in retort through described top cover, bracing frame is placed with in described heating arrangement, support frame as described above comprises for the installing plate of placing response tank and the feet for supporting described installing plate, described installing plate is provided with the mounting hole mated with described retort, the aperture of described mounting hole is less than described support ring external diameter.
As preferably, described top cover is provided with the seal bore mated with described first pipeline, the inwall of described seal bore is provided with multiple ring groove, and multiple ring groove is arranged along the length direction uniform intervals of described seal bore, is provided with rubber seal in each ring groove.
As preferably, described first pipeline is provided with tensimeter and flowmeter.
As preferably, all pneumatic valves include interconnective first-class siphunculus and the first supporting seat, first fluid passage is provided with in described first-class siphunculus, described first supporting seat is provided with cylinder and the chute with described first fluid channel connection, the piston rod of described cylinder is connected with the first valve plate, described first valve plate is slidably connected in described chute, and described valve plate can slip into first-class siphunculus and cut off first fluid passage under air cylinder driven.
As preferably, all pneumatic valves include interconnective second siphunculus and the second supporting seat, second fluid passage is provided with in described second siphunculus, described second supporting seat is provided with air motor and with described second fluid channel connection turn hole, the output shaft of described air motor stretches into and turns hole and be connected with the second valve plate, described second valve plate is rotationally connected with in described second fluid passage, and described second valve plate can rotate and cut off second fluid passage under the driving of air motor.
As preferably, described measuring apparatus comprises the metal box of cuboid, and described first metering cylinder and the second metering cylinder are arranged on described metal box outer wall, and described First Transition cylinder, the second transitional cylinder and all pneumatic valves are arranged in described metal box.
As preferably, all pneumatic valves are all communicated with solenoid valve, described solenoid valve is communicated with air compressor machine, described solenoid valve is electrically connected with controller, described controller is electrically connected with touch screen displays, described solenoid valve and controller are arranged on the inwall of described metal box, and it is outside that described touch screen displays is arranged at described metal box.
As preferably, described First Transition cylinder, the second transitional cylinder and all pipelines all adopt stainless steel.
The invention has the beneficial effects as follows:
This vacuum measuring apparatus adopts two graduated cylinder structure, disposablely can realize the measurement of the gas of larger volume, not only easy and simple to handle, and measuring error is little, and result is relatively more accurate.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the vacuumatic measuring device that Fig. 1 provides for first embodiment of the invention;
The structural representation of the pneumatic valve that Fig. 2 provides for first embodiment of the invention;
The structural representation of the pneumatic valve that Fig. 3 provides for second embodiment of the invention.
Reference numeral gathers:
First metering cylinder 100; First Transition cylinder 200;
Second metering cylinder 300; Second transitional cylinder 400;
Heating arrangement 500; Tank body 510; Support ring 520;
Vacuum pump 600; Air pump 650; Sampling bottle 700;
First pneumatic valve 810; 3rd pneumatic valve 830;
4th pneumatic valve 840; 5th pneumatic valve 850;
6th pneumatic valve 860; 8th pneumatic valve 880;
9th pneumatic valve 890; Tenth pneumatic valve 900;
First-class siphunculus 910; First supporting seat 920;
Cylinder 930; Second siphunculus 940;
Second supporting seat 950; Air motor 960.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this invention product orientation of usually putting or position relationship when using, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In describing the invention, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
First embodiment, with reference to Fig. 1-2, this vacuum measuring apparatus comprises desorption apparatus, measuring apparatus and sampling bottle 700, described desorption apparatus comprises for the retort of splendid attire sample and the heating arrangement 500 for heating retort, described measuring apparatus comprises the first metering cylinder 100, First Transition cylinder 200, second metering cylinder 300, second transitional cylinder 400, air pump 650 and vacuum pump 600, described first metering cylinder 100 top to be communicated with described retort by the first pipeline and the first pipeline to be provided with the first pneumatic valve 810, the bottom of described first metering cylinder 100 is communicated with bottom described First Transition cylinder 200 by second pipe, the top of described First Transition cylinder 200 to be communicated with described air pump 650 by the 3rd pipeline and described 3rd pipeline is provided with the 3rd pneumatic valve 830, described First Transition cylinder 200 top to be also communicated with described vacuum pump 600 by the 4th pipeline and described 4th pipeline is provided with the 4th pneumatic valve 840, the top of described First Transition cylinder 200 to be also communicated with extraneous air by the 5th pipeline and described 5th pipeline is provided with the 5th pneumatic valve 850, the top of described first metering cylinder 100 to be also communicated with described second metering cylinder 300 top by the 6th pipeline and described 6th pipeline is provided with the 6th pneumatic valve 860, be communicated with bottom described second transitional cylinder 400 by the 7th pipeline bottom described second metering cylinder 300, described second transitional cylinder 400 top to be communicated with described air pump 650 by the 8th pipeline and described 8th pipeline is provided with the 8th pneumatic valve 880, described second transitional cylinder 400 top to be communicated with extraneous air by the 9th pipeline and described 9th pipeline is provided with the 9th pneumatic valve 890, described second metering cylinder 300 top to be communicated with sampling bottle 700 by the tenth pipeline and described tenth pipeline is provided with the tenth pneumatic valve 900.
Wherein, described heating arrangement 500 comprises heating cabinet, and be marked with high-temp liquid (such as water or oil) in described heating cabinet and the electric heater unit be provided with for maintenance medium temperature, described retort has multiple, all be soaked in described liquid, so that the sample desorb of inside; By the 11 pipeline communication between described first pipeline and vacuum pump 600, described 11 pipeline also simultaneously with the 4th pipeline communication, described 11 pipeline is provided with the 11 pneumatic valve near the position of described first pipeline; Gas is communicated with the 12 pipeline between described first pipeline and the tenth pipeline, described 12 pipeline is provided with the 12 pneumatic valve, so that directly can enter sampling bottle 700 through the first pipeline, the 12 pipeline and the tenth pipeline.
This vacuum measuring apparatus is mainly used in the metering of coal-seam gas, shale gas, and its principle of work and process are such:
The first step, saturated liquid is injected in the first metering cylinder 100, First Transition cylinder 200, second metering cylinder 300 and the second transitional cylinder 400, make to be full of saturated liquid in described first metering cylinder 100 and the second metering cylinder 300, saturated liquid in saturated liquid in First Transition cylinder 200 and described first metering cylinder 100 is identical in quality and ensure that the ullage in First Transition cylinder 200 leaves space, and the saturated liquid in the saturated liquid in the second transitional cylinder 400 and described second metering cylinder 300 is identical in quality and ensure that the ullage in the second transitional cylinder 400 leaves space;
Second step, open the first pneumatic valve 810 and the 3rd pneumatic valve 830 and start vacuum pump 600 and bleed, the gas desorbed in retort enters in the first metering cylinder 100 through the first pipeline, thus by the saturated liquid press-in First Transition cylinder 200 in the first metering cylinder 100, close the first pneumatic valve 810 and the 3rd pneumatic valve 830 afterwards and close vacuum pump 600;
3rd step, open the 5th pneumatic valve 850, air enters in the second transitional cylinder 400, and the air pressure in the gas atmosphere of the first metering cylinder 100 and the second metering cylinder 300 is balanced, after the liquid level stabilizing in the first metering cylinder 100 and the second metering cylinder 300, close the 5th pneumatic valve 850;
4th step, open the 4th pneumatic valve 840, the 6th pneumatic valve 860 and the 9th pneumatic valve 890 booster air pump 650 to inflate, the first metering cylinder 100 is entered with the saturated liquid of oppressing in First Transition cylinder 200, thus make the gas in the first metering cylinder 100 enter in the second metering cylinder 300, saturated liquid in second metering cylinder 300 is pressed in the second transitional cylinder 400, refill after the first metering cylinder 100 until saturated liquid, close the 4th pneumatic valve 840, the 6th pneumatic valve 860 and the 9th pneumatic valve 890 and close air pump 650;
5th step, repeats second step, the 3rd step and the 4th step, completes and enter completely after in the second metering cylinder 300, read and record liquid level position, completing the measurement of gas volume until gas desorption;
6th step; open the 8th pneumatic valve 880 and the tenth pneumatic valve 900; and booster air pump 650 is inflated; the saturated liquid (protection liquid) of oppressing in the second transitional cylinder 400 enters the second metering cylinder 300; thus make the gas in the second metering cylinder 300 enter sampling bottle 700; refill after the second metering cylinder 300 until saturated liquid, close the 8th pneumatic valve 880 and the tenth pneumatic valve 900 and close air pump 650, completing the collection of gas.
In the present embodiment, described retort comprises bottom seal, open-topped tank body 510 and the top cover for blocking opening, described tank body 510 outer wall top is provided with support ring 520, described top cover is removably connected on described tank body 510, described first pipeline stretches in retort through described top cover, bracing frame is placed with in described heating arrangement 500, support frame as described above comprises for the installing plate of placing response tank and the feet for supporting described installing plate, described installing plate is provided with the mounting hole mated with described retort, the aperture of described mounting hole is less than described support ring 520 external diameter.
Wherein, described support ring 520 is bolted on described tank body 510, to process; Described top cover is bolted in described tank body 510 top, to install and remove; Described placement plate is rectangle, and described feet has four, is arranged on the lower surface at described placement plate four angles respectively; When described retort is placed on bracing frame, described retort bottom is through mounting hole, and described support ring 520 is supported on described placement plate.
The object arranging desorption apparatus is like this that structure is simple, and user can pick and place retort like a cork, operates very convenient.
In the present embodiment, described top cover is provided with the seal bore mated with described first pipeline, the inwall of described seal bore is provided with multiple ring groove, and multiple ring groove is arranged along the length direction uniform intervals of described seal bore, is provided with rubber seal in each ring groove.
Wherein, the shape of described seal bore and the first pipeline and size coupling, to improve the sealing that both connect; Rubber seal adopts metal-rubber O-ring seal, so that it adapts to high-temperature work environment.
The object arranging rubber seal is the sealing ensureing that retort is connected with the first pipeline, effectively avoids the Leakage Gas of desorb, improves the stability of measurement result.
In the present embodiment, described first pipeline is provided with tensimeter and flowmeter.
Arrange the pressure that manometric object is detection first air in pipeline, the object arranging flowmeter is the flow of detection first air in pipeline, with for reference.
In the present embodiment, all pneumatic valves include interconnective first-class siphunculus 910 and the first supporting seat 920, first fluid passage is provided with in described first-class siphunculus 910, described first supporting seat 920 is provided with cylinder 930 and the chute with described first fluid channel connection, the piston rod of described cylinder 930 is connected with the first valve plate, described first valve plate is slidably connected in described chute, and described valve plate can slip into first-class siphunculus 910 and cut off first fluid passage under cylinder 930 drives.
Wherein, all pneumatic valves comprise the first pneumatic valve 810, the 3rd pneumatic valve 830, the 4th pneumatic valve 840, the 5th pneumatic valve 850, the 6th pneumatic valve 860, the 8th starting valve, the 9th pneumatic valve 890 and the tenth pneumatic valve 900.
The object arranging pneumatic valve is like this that its structure is simple, effectively can realize circulation and the partition of fluid.
In the present embodiment, described measuring apparatus comprises the metal box of cuboid, described first metering cylinder 100 and the second metering cylinder 300 are arranged on described metal box outer wall, and described First Transition cylinder 200, second transitional cylinder 400 and all pneumatic valves are arranged in described metal box.
Wherein, the two ends of described first metering cylinder 100 and the second metering cylinder 300 are all removably connected on described metal box by card article and bolt, so that mounting or dismounting and adjustment; One sidewall of described metal box is the operation window of rotary open-and-close, and described operation window adopts transparent acrylic board to make, so that user can observe the situation in metal box; All pipelines are all arranged in described metal box, to improve the compactedness of structure by repeatedly bending.
The object arranging metal box is to protect measuring apparatus, extends the life-span of measuring apparatus, facilitates the movement of measuring apparatus.
In the present embodiment, all pneumatic valves are all communicated with solenoid valve, described solenoid valve is communicated with air compressor machine, described solenoid valve is electrically connected with controller, described controller is electrically connected with touch screen displays, described solenoid valve and controller are arranged on the inwall of described metal box, and it is outside that described touch screen displays is arranged at described metal box.
The object of such setting is the automaticity improving whole measuring apparatus, facilitates this measuring apparatus of user's easy manipulation.
In the present embodiment, described First Transition cylinder 200, second transitional cylinder 400 and all pipelines all adopt stainless steel.
Wherein, all pipelines comprise the first pipeline, second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline, the 7th pipeline, the 8th pipeline, the 9th pipeline and the tenth pipeline.
Adopt stainless object to be to strengthen the mechanical strength of measuring apparatus, extend the serviceable life of measuring apparatus.
This vacuum measuring apparatus adopts two graduated cylinder structure, disposablely can realize the measurement of the gas of larger volume, not only easy and simple to handle, and measuring error is little, and result is relatively more accurate.
Second embodiment, with reference to Fig. 3, the device that the embodiment of the present invention provides, its technique effect realizing principle and generation is identical with preceding method embodiment, is concise and to the point description, and the not mentioned part of device embodiment part can with reference to corresponding contents in preceding method embodiment.
In the present embodiment, all pneumatic valves include interconnective second siphunculus 940 and the second supporting seat 950, second fluid passage is provided with in described second siphunculus 940, described second supporting seat 950 is provided with air motor 960 and with described second fluid channel connection turn hole, the output shaft of described air motor 960 stretches into and turns hole and be connected with the second valve plate, described second valve plate is rotationally connected with in described second fluid passage, and described second valve plate can rotate and cut off second fluid passage under the driving of air motor 960.
The object arranging pneumatic valve is like this its compact conformation, effectively can realize circulation and the partition of fluid.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.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 (9)
1. a vacuumatic measuring device, it is characterized in that, comprise desorption apparatus, measuring apparatus and sampling bottle, described desorption apparatus comprises for the retort of splendid attire sample and the heating arrangement for heating retort, described measuring apparatus comprises the first metering cylinder, First Transition cylinder, second metering cylinder, second transitional cylinder, air pump and vacuum pump, described first metering cylinder top to be communicated with described retort by the first pipeline and the first pipeline is provided with the first pneumatic valve, the bottom of described first metering cylinder is communicated with bottom described First Transition cylinder by second pipe, the top of described First Transition cylinder to be communicated with described air pump by the 3rd pipeline and described 3rd pipeline is provided with the 3rd pneumatic valve, described First Transition cylinder top to be also communicated with described vacuum pump by the 4th pipeline and described 4th pipeline is provided with the 4th pneumatic valve, the top of described First Transition cylinder to be also communicated with extraneous air by the 5th pipeline and described 5th pipeline is provided with the 5th pneumatic valve, the top of described first metering cylinder to be also communicated with described second metering cylinder top by the 6th pipeline and described 6th pipeline is provided with the 6th pneumatic valve, be communicated with bottom described second transitional cylinder by the 7th pipeline bottom described second metering cylinder, described second transitional cylinder top to be communicated with described air pump by the 8th pipeline and described 8th pipeline is provided with the 8th pneumatic valve, described second transitional cylinder top to be communicated with extraneous air by the 9th pipeline and described 9th pipeline is provided with the 9th pneumatic valve, described second metering cylinder top to be communicated with described sampling bottle by the tenth pipeline and described tenth pipeline is provided with the tenth pneumatic valve.
2. vacuumatic measuring device according to claim 1, it is characterized in that, described retort comprises bottom seal, open-topped tank body and the top cover for blocking opening, described tank wall top is provided with support ring, described top cover is removably connected on described tank body, described first pipeline stretches in retort through described top cover, bracing frame is placed with in described heating arrangement, support frame as described above comprises for the installing plate of placing response tank and the feet for supporting described installing plate, described installing plate is provided with the mounting hole mated with described retort, the aperture of described mounting hole is less than described support ring external diameter.
3. vacuumatic measuring device according to claim 2, it is characterized in that, described top cover is provided with the seal bore mated with described first pipeline, the inwall of described seal bore is provided with multiple ring groove, multiple ring groove is arranged along the length direction uniform intervals of described seal bore, is provided with rubber seal in each ring groove.
4. vacuumatic measuring device according to claim 1, is characterized in that, described first pipeline is provided with tensimeter and flowmeter.
5. vacuumatic measuring device according to claim 1, it is characterized in that, all pneumatic valves include interconnective first-class siphunculus and the first supporting seat, first fluid passage is provided with in described first-class siphunculus, described first supporting seat is provided with cylinder and the chute with described first fluid channel connection, the piston rod of described cylinder is connected with the first valve plate, described first valve plate is slidably connected in described chute, and described valve plate can slip into first-class siphunculus and cut off first fluid passage under air cylinder driven.
6. vacuumatic measuring device according to claim 1, it is characterized in that, all pneumatic valves include interconnective second siphunculus and the second supporting seat, second fluid passage is provided with in described second siphunculus, described second supporting seat is provided with air motor and with described second fluid channel connection turn hole, the output shaft of described air motor stretches into and turns hole and be connected with the second valve plate, described second valve plate is rotationally connected with in described second fluid passage, and described second valve plate can rotate and cut off second fluid passage under the driving of air motor.
7. vacuumatic measuring device according to claim 1, it is characterized in that, described measuring apparatus comprises the metal box of cuboid, described first metering cylinder and the second metering cylinder are arranged on described metal box outer wall, and described First Transition cylinder, the second transitional cylinder and all pneumatic valves are arranged in described metal box.
8. vacuumatic measuring device according to claim 7, it is characterized in that, all pneumatic valves are all communicated with solenoid valve, described solenoid valve is communicated with air compressor machine, described solenoid valve is electrically connected with controller, described controller is electrically connected with touch screen displays, and described solenoid valve and controller are arranged on the inwall of described metal box, and it is outside that described touch screen displays is arranged at described metal box.
9. vacuumatic measuring device according to claim 1, is characterized in that, described First Transition cylinder, the second transitional cylinder and all pipelines all adopt stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363005.5A CN104931384A (en) | 2015-06-26 | 2015-06-26 | Vacuum metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363005.5A CN104931384A (en) | 2015-06-26 | 2015-06-26 | Vacuum metering device |
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| CN104931384A true CN104931384A (en) | 2015-09-23 |
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| CN201510363005.5A Pending CN104931384A (en) | 2015-06-26 | 2015-06-26 | Vacuum metering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107807068A (en) * | 2017-09-28 | 2018-03-16 | 四川省科源工程技术测试中心 | The full-automatic PVT constant volumes site desorption instrument of shale gas |
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Application publication date: 20150923 |