CN107884307A - A kind of isothermal adsorption device for changing gas humidity - Google Patents
A kind of isothermal adsorption device for changing gas humidity Download PDFInfo
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- CN107884307A CN107884307A CN201711451786.9A CN201711451786A CN107884307A CN 107884307 A CN107884307 A CN 107884307A CN 201711451786 A CN201711451786 A CN 201711451786A CN 107884307 A CN107884307 A CN 107884307A
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- humidity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/02—Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder
- G01N7/04—Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder by absorption or adsorption alone
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Abstract
The invention provides one kind can change gas humidity isothermal adsorption device.The present invention is connected two air accumulators so that gas uniformly mixes by humidity conditioner with steam generator, and vavuum pump is set in connecting tube, reduce experimental error, the change of humidity can be monitored in real time in humidity conditioner connection hygronom, and by switch valve humidity can be controlled to change, sample is loaded by the axle press pump and confined pressure pump that are connected in adsorption chamber end port, and constant temperature water bath system is set outside adsorption chamber, the experiment of trip temperature, stress and gas humidity change to raw coal Adsorption Effect can be entered.The present invention can make raw coal carry out the adsorption isotherm experiment under gas with various damp condition, and can not coaxially it be pressed and adsorption isotherm experiment under the conditions of confined pressure various factors coupling, can in real simulation process of coal mining gas adsorption isotherm experiment, the experimental provision is simple to operation, using effect is good, easy to spread.
Description
Technical field
The present invention relates to experimental apparatus technical field, specially a kind of isothermal adsorption device for changing gas humidity.
Background technology
China is as coal production big country, during coal mining activity, it is easy to natural environmental condition is destructively descended, than
Such as it is mixed into the original damp condition of the larger gas and changing of humidity.Contain abundant coal bed gas resource in coal seam, its main component
It is gas.Coal petrography characterization of adsorption is one of important parameter of coal-bed gas exploitation, and coal petrography characterization of adsorption closes with the change of various conditions
System always pays close attention to for numerous researchers, and wherein crustal stress is the sensitive prime factor of its change, but with seam mining depth
Increase, the air humidity brought into therewith also increase, thus, influence of the gas humidity to coal petrography characterization of adsorption can not be ignored, coal petrography
The relation of characterization of adsorption and temperature, existing many researchers did research, but it is real to carry out the isothermal adsorption under gas with various humidity
Test also fewer, the influence of the humidity of learning gas to coal gas adsorption amount is significant.So far, also without available
In the isothermal adsorption device for changing gas humidity, it is therefore necessary to carry out certain improvement to existing adsorbent equipment to simulate coal
Ore deposit exploits the change of gas on-site humidity.
Therefore establish the experimental provision and change to simulate the humidity of gas during coal-bed gas exploitation to coal seam characterization of adsorption
The experiment of influence, while using being tested at research different loads and temperature and various factors coupling effect, can preferably grind
Study carefully raw coal Adsorption law, be that coal bed gas extraction etc. provides Technical Reference.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of isothermal adsorption device for changing gas humidity, it is
The adsorption isotherm experiment that gas humidity changes in process of coal mining provides hardware foundation.
To realize object above, the present invention is achieved by the following technical programs：The isothermal that gas humidity can be changed is inhaled
Adsorption device, including gas supply system, vacuum degassing system, humidity control system, gas adsorption system and pressure-loaded system；
Described gas supply system is made up of the first air accumulator, the second air accumulator, steam generator and booster pump, in the first storage
Gas tank, the second air accumulator, be equipped with steam generator corresponding to valve and pressure gauge, and they access same root
Total pipeline；Described vacuum degassing system is made up of vavuum pump and the 4th switch valve, and vavuum pump and the 4th switch valve access gas
The total pipeline of body feed system；Described humidity control system is humidity control case, and humidity sensor is provided with humidity control case
Device, humidity sensor are connected with display；In the total pipeline access humidity control case of gas supply system；Described gas absorption
The composition of system includes reference chamber, adsorption chamber and water bath thermostat, and reference chamber is respectively enterd from the escape pipe of humidity control case
And adsorption chamber, reference chamber and adsorption chamber are in water bath thermostat；Described pressure-loaded system is by axle press pump and confined pressure pump
Composition, axle press pump and confined pressure pump connect the axle crimping mouth and confined pressure interface of adsorption chamber respectively.
The composition of steam generator includes water storage box, the heating wire of tape controller is provided with water storage box, in water storage
The gas outlet of case is provided with the 3rd switch valve, the total pipeline of the gas outlet connection gas supply system of water storage box, on water storage box top
Portion is provided with closure.
Beneficial effect
The invention provides a kind of isothermal adsorption device for changing gas humidity.Possesses following beneficial effect：
The present invention is connected two air accumulators with steam generator by humidity conditioner so that gas mixing,
And vavuum pump is set in connecting tube, experimental error is reduced, humidity can be monitored in real time in humidity conditioner connection hygronom
Change, and can by switch valve control humidity change, pass through the axle press pump and confined pressure pump connected in adsorption chamber end port
Sample is loaded, and constant temperature water bath system is set outside adsorption chamber, trip temperature, stress and gas humidity change can be entered to coal petrography
The experiment that characterization of adsorption influences.The present invention can make raw coal carry out the adsorption isotherm experiment under gas with various damp condition, and
And can not coaxially be pressed with adsorption isotherm experiment under the conditions of confined pressure various factors coupling, being capable of real simulation process of coal mining
The adsorption isotherm experiment of middle gas, the experimental provision is simple to operation, and using effect is good, easy to spread.
Brief description of the drawings
Fig. 1 is the overall structural representation of the present invention；
Fig. 2 is the structural representation of the steam generator of the present invention；
In figure：The air accumulators of 1- first, 2- first switches valve, 3- first pressures table, the air accumulators of 4- second, 5- second switches
Valve, 6- second pressure gauges, the pressure gauges of 7- the 3rd, 8- steam generators, 9- booster pumps, 10- vavuum pumps, 11- the 4th are switched
Valve, 12- humidity control cases, 13- humidity sensors, 14- displays, the switch valves of 15- the 5th, the pressure gauges of 16- the 4th, 17- references
Room, the switch valves of 18- the 6th, 19- adsorption chambers, 20- water bath thermostats, 21- axles press pump, 22- confined pressures pump, 23- water storage boxes, 24-
3rd switch valve, 25 closures, 26- heating wire, 27- controllers.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme：The isothermal adsorption device of gas humidity can be changed, including
Gas supply system, vacuum degassing system, humidity control system, gas adsorption system and pressure-loaded system；Described gas
Feed system is made up of the first air accumulator 1, the second air accumulator 4, steam generator 8 and booster pump 9, the first air accumulator 1,
Valve corresponding to being equipped with second air accumulator 4, steam generator 8 and pressure gauge, and they to access same root total
Pipeline；Described vacuum degassing system is made up of the switch valve 11 of vavuum pump 10 and the 4th, and the switch valve 11 of vavuum pump 10 and the 4th is equal
Access the total pipeline of gas supply system；Described humidity control system is humidity control case 12, is set in humidity control case 12
There is humidity sensor 13, humidity sensor 13 is connected with display 14；The total pipeline access humidity control case of gas supply system
In 12；The composition of described gas adsorption system includes reference chamber 17, adsorption chamber 19 and water bath thermostat 20, from humid control
The escape pipe of case 12 respectively enters reference chamber 17 and adsorption chamber 19, and reference chamber 17 and adsorption chamber 19 are in water bath thermostat 20
In；Described pressure-loaded system is made up of axle press pump 21 and confined pressure pump 22, and axle press pump 21 and confined pressure pump 22 connect absorption respectively
The axle crimping mouth and confined pressure interface of room 19.
The composition of steam generator 8 includes water storage box 23, and the heating wire of tape controller 27 is provided with water storage box 23
26, the 3rd switch valve 24 is provided with the gas outlet of water storage box 23, the gas outlet of water storage box 23 connects the total of gas supply system
Pipeline, closure 25 is provided with the top of water storage box 23.
In use, raw coal sample is put into adsorption chamber 19 first, vavuum pump 10 is opened, rest switch valve is closed, to reality
Experiment device carries out de- application of vacuum, then adsorption chamber 19 and reference chamber 17 are put into the water bath thermostat 20 for setting temperature
In, and apply constant shaft pressure and confined pressure to adsorption chamber 19 simultaneously.The first air accumulator 1 equipped with helium is first opened afterwards, closes the
Six switch valves 18, the 4th switch valve 11 is opened, the 5th switch valve 15 is also opened, gas is passed through reference chamber 17, determines pressure
The 5th switch valve 15 is closed afterwards and opens the 6th switch valve 18, gas is passed through in adsorption chamber 17, determines pressure and with formula meter
Free space volumes are calculated, after treating records of values, vavuum pump 10 is opened and helium is handled to clean, the He of opening second switch valve 5
3rd switch valve 24, methane is passed through, and heats the water of water storage box 23 simultaneously, there is provided a certain amount of vapor, make vapor and first
Alkane mixes, and determining opening the 5th switch valve 15 of opening after humidity reaches experiment setting value by hygronom afterwards steams methane and water
Gas gas enters reference chamber 17, determines pressure, and the 5th switch valve 15 is closed after stable reading and opens the 6th switch valve 18 makes
Gas enters adsorption chamber 19, and methane and water vapor gas start to adsorb in raw coal pore surface, finally establish a Dynamic Adsorption
Poised state, the pressure of gas under the state is determined, calculate what is be adsorbed at a given pressure according to adsorption-desorption formula
Gas volume.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present ".
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of isothermal adsorption device for changing gas humidity, including gas supply system, vacuum degassing system, humid control
System, gas adsorption system and pressure-loaded system；It is characterized in that：Described gas supply system by the first air accumulator (1),
Second air accumulator (4), steam generator (8) and booster pump (9) composition, the first air accumulator (1), the second air accumulator (4),
Valve and pressure gauge corresponding to being equipped with steam generator (8), and they access same root total pipeline；Described
Vacuum degassing system is made up of vavuum pump (10) and the 4th switch valve (11), and vavuum pump (10) and the 4th switch valve (11) access
The total pipeline of gas supply system；Described humidity control system is humidity control case (12), is set in humidity control case (12)
There is humidity sensor (13), humidity sensor (13) is connected with display (14)；The total pipeline access humidity of gas supply system
In control cabinet (12)；The composition of described gas adsorption system includes reference chamber (17), adsorption chamber (19) and water bath thermostat
(20) reference chamber (17) and adsorption chamber (19), reference chamber (17) and absorption, are respectively enterd from the escape pipe of humidity control case (12)
Room (19) is in water bath thermostat (20)；Described pressure-loaded system is made up of axle press pump (21) and confined pressure pump (22),
Axle press pump (21) and confined pressure pump (22) connect the axle crimping mouth and confined pressure interface of adsorption chamber (19) respectively.
2. the isothermal adsorption device according to claim 1 for changing gas humidity, it is characterised in that：Vapor produces dress
Putting the composition of (8) includes water storage box (23), the heating wire (26) of tape controller (27) is provided with water storage box (23), in water storage box
(23) gas outlet is provided with the 3rd switch valve (24), and the gas outlet of water storage box (23) connects the total pipeline of gas supply system,
Closure (25) is provided with the top of water storage box (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711451786.9A CN107884307A (en) | 2017-12-28 | 2017-12-28 | A kind of isothermal adsorption device for changing gas humidity |
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| CN201711451786.9A CN107884307A (en) | 2017-12-28 | 2017-12-28 | A kind of isothermal adsorption device for changing gas humidity |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470834A (en) * | 2018-11-05 | 2019-03-15 | 石家庄铁道大学 | Coal petrography adsorption-desorption deformation Visualizing Test System and test method under water and gas collective effect |
| CN109540734A (en) * | 2019-01-09 | 2019-03-29 | 重庆工业职业技术学院 | Coal seam with gas High Pressure Absorption/the test device for desorption and method of controllable moisture |
| CN109839345A (en) * | 2019-04-02 | 2019-06-04 | 贵州大学 | A kind of isothermal adsorption experimental rig and test method changing test gas temperature |
| CN109870400A (en) * | 2019-04-02 | 2019-06-11 | 贵州大学 | A kind of isothermal adsorption device and test method changing gas density |
| CN110018107A (en) * | 2019-05-08 | 2019-07-16 | 贵州大学 | A kind of the isothermal adsorption device and operating method of changeable mixed gas viscosity |
| CN110160911A (en) * | 2019-07-04 | 2019-08-23 | 贵州大学 | A kind of isothermal adsorption device and operating method with magnetic field |
| CN110161207A (en) * | 2019-07-04 | 2019-08-23 | 贵州大学 | Change the isothermal adsorption deformation testing device and test method of gas humidity and electric field |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470834A (en) * | 2018-11-05 | 2019-03-15 | 石家庄铁道大学 | Coal petrography adsorption-desorption deformation Visualizing Test System and test method under water and gas collective effect |
| CN109540734A (en) * | 2019-01-09 | 2019-03-29 | 重庆工业职业技术学院 | Coal seam with gas High Pressure Absorption/the test device for desorption and method of controllable moisture |
| CN109540734B (en) * | 2019-01-09 | 2023-11-24 | 重庆工业职业技术学院 | Gas-containing coal high-pressure adsorption/desorption test device and method capable of controlling moisture |
| CN109839345A (en) * | 2019-04-02 | 2019-06-04 | 贵州大学 | A kind of isothermal adsorption experimental rig and test method changing test gas temperature |
| CN109870400A (en) * | 2019-04-02 | 2019-06-11 | 贵州大学 | A kind of isothermal adsorption device and test method changing gas density |
| CN110018107A (en) * | 2019-05-08 | 2019-07-16 | 贵州大学 | A kind of the isothermal adsorption device and operating method of changeable mixed gas viscosity |
| CN110160911A (en) * | 2019-07-04 | 2019-08-23 | 贵州大学 | A kind of isothermal adsorption device and operating method with magnetic field |
| CN110161207A (en) * | 2019-07-04 | 2019-08-23 | 贵州大学 | Change the isothermal adsorption deformation testing device and test method of gas humidity and electric field |
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