CN208296929U - The cubing equipment of gas hydrates - Google Patents
The cubing equipment of gas hydrates Download PDFInfo
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- CN208296929U CN208296929U CN201820638397.0U CN201820638397U CN208296929U CN 208296929 U CN208296929 U CN 208296929U CN 201820638397 U CN201820638397 U CN 201820638397U CN 208296929 U CN208296929 U CN 208296929U
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Abstract
The utility model discloses a kind of cubing equipment of gas hydrates, including survey room, thermostat, gas absorption bottle, inlet duct and weighing device, connecting line is provided with the first block valve, is contained with calcium chloride solution in gas absorption bottle；Weighing device is used to weigh the quality of calcium carbonate solid.The technical solution of the utility model can efficiently solve the prior art can not be in the case where maintaining gas hydrates sample original state, the problem of carrying out precise measurement to the volume of gas hydrates sample.
Description
Technical field
The utility model relates to the volume measurement techniques field of gas hydrates more particularly to a kind of gas hydrates
Cubing equipment.
Background technique
Gas hydrates are distributed widely in halmeic deposit, be by methane gas and water under the conditions of high pressure low temperature shape
At class ice-like crystalline material.Because of its appearance as ice and also meet fire be incendivity, so also referred to as " combustible ice ".1
Cubic meter gas hydrates can be converted into 164 cubic metres of natural gas and 0.8 cubic metre of water, be nearly free from and appoint after burning
What residue, damage ratio coal, petroleum, natural gas will be much smaller, and distribution on global is extensive, so having high resource valence
Value.With the continuous development of China's economic strength and science and technology, ocean gas hydrate investigation and examination are being greatly developed
Exploit work.
Since gas hydrates are extremely easy in decomposition into water and natural gas at normal temperatures and pressures, so laboratory saves natural gas
Hydrate sample after usually wrapping up sample with masking foil, is put in freezen protective (under normal pressure, liquid nitrogen temperature in liquid nitrogen container
It is -196 DEG C).
Under this extreme cold, loose irregular bulk is presented in gas hydrates sample.In the prior art, it does not advise
Then the cubing of solid sample generally uses drainage, but this method is not suitable for the gas hydrates sample that liquid nitrogen frozen saves
The measurement of product volume, main cause are as follows:
1, gas hydrates sample temperature is extremely low, and when placed in water, water can cause body in sample surfaces flash freeze
Product expansion, to influence measurement result；
2, when gas hydrates sample into the water when, temperature can be increased quickly, cause sample to decompose (natural under normal pressure
The decomposition temperature of gas hydrate sample is -45 DEG C), destroy the original state of sample.
If 3, replacing water to carry out cubing using other liquid, dirt can be caused to gas hydrates sample
Dye.
It therefore, can not be in the case where maintaining gas hydrates sample original state, to natural using existing measurement method
The volume of gas hydrate sample is accurately measured.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of volumes of gas hydrates
Measuring device, can not be in the case where maintaining gas hydrates sample original state, to gas hydrates to solve the prior art
The volume of sample carries out the problem of precise measurement.
In order to achieve the above object, one aspect according to the present utility model provides a kind of body of gas hydrates
Product measuring device, comprising: survey room, for placing gas hydrates sample；Thermostat is matched with survey room so as to survey
Amount is maintained at predetermined temperature in cabin；Gas absorption bottle is connected to survey room by connecting line, first is provided on connecting line
Block valve, calcium chloride solution is contained in gas absorption bottle, and the liquid level of calcium chloride solution is connected to lower than connecting line with survey room
Nozzle；Inlet duct, inlet duct are connected to survey room, when a measurement is taken, are first closed the first block valve, are passed through air inlet
Device is filled with carbon dioxide gas into survey room, opens after carbon dioxide gas is full of survey room, then by the first block valve,
Inert gas is filled with into survey room by inlet duct, inert gas all delivers carbon dioxide gas along connecting line
To gas absorption bottle, carbon dioxide gas is reacted with calcium chloride solution generates calcium carbonate solid；Weighing device, for weighing carbon
The quality of sour calcium solid.
It preferably, further include first exhaust pipeline, carbon dioxide survey meter and thermometer, first exhaust pipeline and measurement
The top in cabin is connected to, and downtake pipe road is provided with the second block valve, the end of probe of carbon dioxide survey meter and thermometer
Thermometric end stretches in survey room.
Preferably, inlet duct includes the first air inlet pipeline for being filled with carbon dioxide gas and for being filled with inertia
Second air inlet pipeline of gas, the first air inlet pipeline are connected to the bottom of survey room, the top of the second air inlet pipeline and survey room
Connection, the both ends of connecting line are connected to the bottom of the bottom of survey room and gas absorption bottle respectively, set on the first air inlet pipeline
It is equipped with third block valve, the 4th block valve is provided on the second air inlet pipeline.
It preferably, further include second exhaust pipeline, second exhaust pipeline is connected to the top of gas absorption bottle, second exhaust
The 5th block valve, calcium chloride solution gassy absorption bottle are provided on pipeline.
Preferably, calcium chloride solution is saturation calcium chloride solution.
It preferably, further include methane detection instrument, the end of probe of methane detection instrument stretches in survey room.
Preferably, survey room includes open-topped cabin and the sealing cover that lid is located in cabin, first exhaust pipeline
It is connected on sealing cover.
Preferably, predetermined temperature is greater than -56.6 DEG C and is less than -45 DEG C.
Compared with prior art, the utility model has the beneficial effects that:
Using the cubing equipment of the gas hydrates of the present embodiment, above-mentioned survey room, thermostat, gas are set
Absorption bottle, inlet duct and weighing device.The volume of survey room is set as V.
Firstly, being measured to the survey room under blank state.Specifically, first by the first block valve close, survey room with
Gas absorption bottle it is separated.Carbon dioxide gas is filled with into survey room by inlet duct.When carbon dioxide gas is full of
After survey room, then by the first block valve opening, it is connected between survey room and gas absorption bottle.At this point, the body of carbon dioxide gas
Product is equal with the volume of survey room, i.e., the volume of this partial CO 2 gas is V.It is filled with by inlet duct into survey room
Inert gas, inert gas all deliver the carbon dioxide gas in survey room to gas absorption bottle along connecting line,
Carbon dioxide gas is reacted with calcium chloride solution generates calcium carbonate solid.Weighing device weighs the quality of the part calcium carbonate solid
For M1。
Secondly, being measured to the survey room after gas hydrates sample is put into.Specifically, it replaces in gas absorption bottle
Calcium chloride solution or another gas absorption bottle for being contained with calcium chloride solution is connect with survey room, by what is taken out in liquid nitrogen
Gas hydrates sample is placed in survey room.It repeats the above steps, in the process, the volume of carbon dioxide gas is to survey
The volume in amount cabin subtracts the volume V of gas hydrates sampleSample, i.e. the volume of this partial CO 2 gas is V-VSample, finally
The quality of obtained calcium carbonate solid is M2。
In the case where pressure and temperature is constant, the volume of carbon dioxide gas in the quality and survey room of calcium carbonate solid
It is directly proportional.Therefore, the volume of gas hydrates sampleNatural gas hydration can be obtained according to the formula
The volume of object sample, to realize in the case where maintaining gas hydrates sample original state, to gas hydrates sample
Volume carries out precise measurement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the cubing equipment of the gas hydrates of the utility model.
In figure: 10, survey room；11, cabin；12, sealing cover；20, thermostat；30, gas absorption bottle；40, connecting tube
Road；50, inlet duct；51, the first air inlet pipeline；52, the second air inlet pipeline；60, first exhaust pipeline；70, carbon dioxide is visited
Survey instrument；80, thermometer；90, second exhaust pipeline；100, methane detection instrument；101, the first block valve；102, the second block valve；
103, third block valve；104, the 4th block valve；105, the 5th block valve；200, pipe joint.
Specific embodiment
Below with reference to the accompanying drawings illustrate the embodiments of the present invention.In an attached drawing of the utility model or a kind of implementation
Elements and features described in mode can be with elements and features shown in one or more other drawings or embodiments
It combines.It should be noted that for purposes of clarity, attached drawing and it is omitted that unrelated with the utility model, this field is general in illustrating
The expression and description of component known to logical technical staff or processing.
The utility model is described further with reference to the accompanying drawing.
The cubing equipment of the gas hydrates of the present embodiment can be applied to the research of ocean gas hydrate
With in recovery process to the measurement of its irregular size, i.e., in the case where maintaining gas hydrates sample original state, in pine
The volume of the gas hydrates sample of scatter mass structure is accurately measured.
As shown in Figure 1, the cubing equipment of the gas hydrates of the present embodiment includes survey room 10, thermostat
20, gas absorption bottle 30, inlet duct 50 and weighing device (not shown).Wherein, survey room 10 is natural for placing
Gas hydrate sample.Thermostat 20 is matched with survey room 10 so as to be maintained at predetermined temperature in survey room 10.Gas absorbs
Bottle 30 is connected to by connecting line 40 with survey room 10.The first block valve 101 is provided on connecting line 40.Gas absorption bottle 30
It is inside contained with calcium chloride solution, the liquid level of calcium chloride solution is lower than the nozzle that connecting line 40 is connected to survey room 10.Air inlet dress
It sets 50 to be connected to survey room 10, carbon dioxide gas or lazy can be selectively filled with into survey room 10 by inlet duct 50
Property gas.
Using the cubing equipment of the gas hydrates of the present embodiment, be arranged above-mentioned survey room 10, thermostat 20,
Gas absorption bottle 30, inlet duct 50 and weighing device.The volume of survey room 10 is set as V.
Firstly, being measured to the survey room 10 under blank state.Specifically, first the first block valve 101 is closed, is measured
Cabin 10 is separated with gas absorption bottle 30.Carbon dioxide gas is filled with into survey room 10 by inlet duct 50.Work as dioxy
Change carbon gas full of after survey room 10, then the first block valve 101 is opened, is connected between survey room 10 and gas absorption bottle 30.
At this point, the volume of carbon dioxide gas is equal with the volume of survey room 10, i.e., the volume of this partial CO 2 gas is V.It is logical
It crosses inlet duct 50 and is filled with inert gas into survey room 10, inert gas is along connecting line 40 by the dioxy in survey room 10
Change carbon gas all to deliver to gas absorption bottle 30, carbon dioxide gas is reacted with calcium chloride solution generates calcium carbonate solid.
The quality that weighing device weighs the part calcium carbonate solid is M1。
Secondly, being measured to the survey room 10 after gas hydrates sample is put into.Specifically, gas absorption bottle is replaced
Another gas absorption bottle 30 for being contained with calcium chloride solution is connect by calcium chloride solution in 30 with survey room 10, by liquid nitrogen
The gas hydrates sample of middle taking-up is placed in survey room 10.It repeats the above steps, in the process, carbon dioxide gas
Volume be that the volume of survey room 10 subtracts the volume V of gas hydrates sampleSample, i.e. the volume of this partial CO 2 gas
For V-VSample, the quality of finally obtained calcium carbonate solid is M2。
In the case where pressure and temperature is constant, the body of carbon dioxide gas in the quality and survey room 10 of calcium carbonate solid
Product is directly proportional.Therefore, the volume of gas hydrates sampleGas water can be obtained according to the formula
The volume of object sample is closed, to realize in the case where maintaining gas hydrates sample original state, to gas hydrates sample
Volume carry out precise measurement.
It should be noted that in the present embodiment, thermostat 20 is constant thermal apparatus at low temperature, specially low temperature refrigerator, it is somebody's turn to do
The temperature of low temperature refrigerator can set and keep constant.Survey room 10 is placed in above-mentioned low temperature refrigerator, by setting low temperature
The temperature of refrigerator is maintained at predetermined temperature with the temperature for guaranteeing survey room 10 in measurement process.
Gas hydrates sample decomposes, guarantees that gas hydrates sample is remained stationary in order to prevent, while preventing two
Carbon oxide gas condenses into liquid, and above-mentioned predetermined temperature should be greater than the boiling point of carbon dioxide gas, be less than gas hydrates sample
The decomposition temperature of product.Specifically, under normal pressure, the boiling point of carbon dioxide gas is -56.6 DEG C, point of gas hydrates sample
Solving temperature is -45 DEG C.Therefore, the temperature (predetermined temperature) of survey room 10 should control between -45 DEG C to -56.6 DEG C, it is preferable that
Predetermined temperature is -50 DEG C.
Certainly, the concrete form of thermostat 20 and the specific value of predetermined temperature are without being limited thereto, are being not shown in the figure
Other embodiments in, thermostat can make the device that cryogenic thermostat is kept in survey room for other, for example, can be with
Using cryostat, low temperature water bath device etc.；The specific value of predetermined temperature can also according to requiring to be selected, as long as
Between -45 DEG C to -56.6 DEG C.
In the cubing equipment of the gas hydrates of the present embodiment, the calcium chloride held in gas absorption bottle 30 is molten
The liquid level of liquid is lower than the nozzle that connecting line 40 is connected to survey room 10, gas when can prevent the first block valve 101 from opening in this way
Liquid in body absorption bottle 30 blows back into survey room 10.In addition, in the present embodiment, by inlet duct 50 to survey room 10
The inert gas being inside filled with is helium.Helium is non-combustible gas, chemical property torpescence, not with carbon dioxide gas, day
Right gas hydrate, calcium chloride solution reaction.It therefore, can during helium leads to gas absorption bottle 30 along connecting line 40
The carbon dioxide gas in survey room 10 all to be delivered to gas absorption bottle 30 as carrier.Certainly, inert gas
Concrete form is without being limited thereto, and in other embodiments, inert gas can be for other chemical property torpescence and not with two
Carbonoxide, gas hydrates, the gas, such as neon, argon gas of calcium chloride reaction etc..
As shown in Figure 1, survey room 10 is opened including top in the cubing equipment of the gas hydrates of the present embodiment
The sealing cover 12 that the cabin 11 and lid of mouth are located in cabin 11.It, can be from the top opening of cabin 11 after opening sealing cover 12
Place is put into or takes out gas hydrates sample, and after closing sealing cover 12, an enclosure space is integrally formed in survey room 10.
As shown in Figure 1, the cubing equipment of gas hydrates further includes first exhaust pipeline 60, carbon dioxide detection
Instrument 70, thermometer 80 and methane detection instrument 100.Specifically, in the present embodiment, one end of first exhaust pipeline 60 is connected to
It is connected on sealing cover 12 and with survey room 10, the other end of first exhaust pipeline 60 extends straight up.First exhaust pipeline 60
On be provided with the second block valve 102.Carbon dioxide survey meter 70, thermometer 80 and methane detection instrument 100 are arranged at sealing
On lid 12, the end of probe of carbon dioxide survey meter 70, the thermometric end of thermometer 80, the end of probe of methane detection instrument 100 are protruded into
To survey room 10.
In the present embodiment, before being filled with carbon dioxide gas to survey room 10, there are air in survey room 10.This
When, first the second block valve 102 on first exhaust pipeline 60 is opened.Since the density of carbon dioxide gas is greater than the close of air
Degree, during being filled with carbon dioxide gas, the air in survey room 10 is walked upwards and passes through first exhaust pipeline 60 upwards
Discharge, so that the partial air be made to be smoothly discharged.Certainly, in other embodiments not shown in the figure, if it is possible to make to survey
Measuring cabin, its inside is vacuum state before measuring, can also be not provided with first exhaust pipeline.
Carbon dioxide survey meter 70 can gas concentration lwevel in real-time display survey room 10, thermometer 80 can be real-time
Show the temperature in survey room 10.During being filled with carbon dioxide gas, when carbon dioxide survey meter 70 and thermometer 80
Readings remained constant when, so that it may think that carbon dioxide gas has been filled with survey room 10.When the reading of carbon dioxide survey meter 70 is
When zero, it is believed that carbon dioxide gas is all carried in gas absorption bottle 30 in survey room 10.Certainly, do not show in figure
In other embodiments out, it also can use whether other method test carbon dioxide gas are full of survey room.For example, measurement
Cabin before measuring its it is internal be vacuum state in the case where, pressure gauge real-time measurement can be set and be filled with carbon dioxide gas
Survey room internal pressure in the process, to judge whether carbon dioxide gas is full of survey room.
In addition, in the present embodiment, the sensitivity of methane detection instrument 100 is very high, it is dense to can be used for detecting display methane
Degree.Detecting in survey room 10 if it is methane detection instrument 100 in measurement process has methane gas, then illustrates gas hydrates
Sample starts to decompose, and at this moment should terminate measurement immediately, opens sealing cover 12 rapidly, takes out sample and puts into rapidly cold in liquid nitrogen
Freeze, to guarantee that sample is not destroyed.
It should be noted that first exhaust pipeline 60, carbon dioxide survey meter 70, thermometer 80 and methane detection instrument
100 setting position is without being limited thereto, and in other embodiments not shown in the figure, sealing cover be can be set in the side of survey room
Face, first exhaust pipeline, carbon dioxide survey meter, thermometer, methane detection instrument are directly connected to the roof of cabin；Alternatively, two
Carbonoxide survey meter, thermometer, methane detection instrument are set up directly in the circumferential side wall of cabin.
As shown in Figure 1, inlet duct 50 includes being used in the cubing equipment of the gas hydrates of the present embodiment
It is filled with the first air inlet pipeline 51 of carbon dioxide gas and the second air inlet pipeline 52 for being filled with helium (inert gas).The
One air inlet pipeline 51 is connected to the bottom of survey room 10.Second air inlet pipeline 52 is connected to the top of survey room 10.Connecting line
40 both ends are connected to the bottom of the bottom of survey room 10 and gas absorption bottle 30 respectively.Is provided on first air inlet pipeline 51
Three block valves 103.The 4th block valve 104 is provided on second air inlet pipeline 52.In the present embodiment, the first air inlet pipeline 51,
One end that second air inlet pipeline 52, connecting line 40 are connected to survey room 10 is both connected in the circumferential side wall of survey room 10, even
One end that adapter tube road 40 is connected to gas absorption bottle 30 is connected in the circumferential side wall of gas absorption bottle 30.Above-mentioned first air inlet pipe
Setting, the two are respectively used to be filled with carbon dioxide gas and helium, easily facilitate independently of each other for road 51 and the second air inlet pipeline 52
Operation.Because the density of helium is less than the density of carbon dioxide gas, the first air inlet pipeline 51, the second air inlet pipeline 52, connection
The setting of the above-mentioned specific location of pipeline 40 can more successfully transport carbon dioxide gas along connecting line 40 for helium
It is loaded onto gas absorption bottle 30.
As shown in Figure 1, in the cubing equipment of the gas hydrates of the present embodiment, cubing equipment further includes
Second exhaust pipeline 90.Second exhaust pipeline 90 is connected to the top of gas absorption bottle 30.It is provided on second exhaust pipeline 90
5th block valve 105.Calcium chloride solution gassy absorption bottle 30.Helium carries carbon dioxide gas and enters gas absorption bottle
After in 30, carbon dioxide gas sufficiently reacts in enough calcium chloride solutions, and helium is upward along second exhaust pipeline 90
Discharge, can prevent helium in gas absorption bottle 30 from excessively causing explosion in this way.Certainly, in other embodiment party not shown in the figure
In formula, half bottle of calcium chloride solution, and its remaining part are only held if gas absorption bottle volume itself is sufficiently large, in gas absorption bottle
Divide and air is not present, second exhaust pipeline can also be not provided at this time, helium is directly deposited in gas absorption bottle.
In the present embodiment, calcium chloride solution is saturation calcium chloride solution, gas absorption bottle 30 can be made to dioxy in this way
Changing carbon gas has very strong absorbability and very high absorptive capacity, and the calcium carbonate solid sediment solubility of generation is minimum, and
Be collected by filtration, to analyze weighing process convenient and efficient accurate, ensure that the cubing equipment of gas hydrates makes in this way
With in the process equally with convenient and efficient and accurate feature.
As shown in Figure 1, connecting line 40 divides for independence in the cubing equipment of the gas hydrates of the present embodiment
Two sections, two sections between connected by pipe joint 200.First block valve 101 is mounted on connecting line 40 and absorbs close to gas
On the part of 30 sides of bottle.Above-mentioned pipe joint 200 facilitates survey room 10 and the separation of gas absorption bottle 30 and connection.In addition,
In the present embodiment, the first block valve 101, the second block valve 102, third block valve 103, the truncation of the 4th block valve the 104, the 5th
Valve 105 is globe valve.Certainly, there are many type of block valve, be mainly used for be truncated or connect medium flow field, including gate valve, cut
Only valve, diaphragm valve, globe valve, plug valve, dish valve, plunger valve, bulb stopper valve, needle-like gauge valve etc..In other embodiments,
It can according to need the other kinds of block valve of selection.
Included the following steps: according to the volume measuring method of above-mentioned gas hydrates
Step 10, low temperature refrigerator (thermostat 20) is set in -50 DEG C, and keeps temperature constant, to make survey room
- 50 DEG C (predetermined temperature is preferably -50 DEG C, or -56.6 DEG C to -45 DEG C) are maintained in 10, survey room 10 is at this time
Blank state；
Step 11, the sealing cover 12 for opening survey room 10, in 10 bottom layer overlay masking foil of survey room, by sealing cover 12
It closes；
Step 20, the 4th block valve on the first block valve 101 and the second air inlet pipeline 52 on connecting line 40 is closed
104, the second block valve 102 on the third block valve 103 and first exhaust pipeline 60 on the first air inlet pipeline 51 is opened, is passed through
First air inlet pipeline 51 is slowly filled with carbon dioxide gas into survey room 10, and the density of carbon dioxide gas is greater than the close of air
It spends, the air in survey room 10 is discharged upwards by first exhaust pipeline 60；
Step 30, when the readings remained constant of carbon dioxide survey meter 70 and thermometer 80, it is believed that carbon dioxide gas
Body has been filled with survey room 10, at this point, first closing third block valve 103, makes in survey room 10 that pressure is equal with atmospheric pressure, turns off
Second block valve 102 opens the 5th block valve on the first block valve 101, the 4th block valve 104 and second exhaust pipeline 90
105, it is slowly filled with into survey room 10 helium (inert gas) by the second air inlet pipeline 52, the density of helium is less than titanium dioxide
The density of carbon gas, helium deliver carbon dioxide gas to gas absorption bottle 30 along connecting line 40, carbon dioxide gas
Body with saturation calcium chloride solution react generation calcium carbonate solid, into the helium of gas absorption bottle 30 from second exhaust pipeline 90 to
Upper discharge；
Step 40, when the reading of carbon dioxide survey meter 70 is zero, it is believed that carbon dioxide gas is complete in survey room 10
Portion is carried in gas absorption bottle 30 and reacts generation calcium carbonate solid, at this point, closing the truncation of the first block valve the 101, the 4th
Valve 104 and the 5th block valve 105, survey room 10 and gas absorption bottle 30 are separated, gas is collected by filtration at pipe joint 200
Calcium carbonate solid in body absorption bottle 30 weighs calcium carbonate solid by weighing device, and obtaining its quality is M1；
Step 50, replace gas absorption bottle 30 in saturation calcium chloride solution or by another be contained with saturation calcium chloride it is molten
The gas absorption bottle 30 of liquid is connect with survey room 10, opens the sealing cover 12 of survey room 10, the gas water that will be taken out in liquid nitrogen
It closes object sample to be placed on the masking foil of 10 bottom of survey room, sealing cover 12 is closed, repeat step 20 to step 40, this time claim
The quality for measuring calcium carbonate solid is M2；
Step 51, sealing cover 12 is opened, gas hydrates sample is wrapped into taking-up with masking foil, and be put into liquid nitrogen
It saves；
Step 60, in the case where pressure and temperature is constant, carbon dioxide in the quality and survey room 10 of calcium carbonate solid
The volume of gas is directly proportional, and the volume of survey room 10 is V, therefore the volume of gas hydrates sample
In the volume measuring method of the present embodiment, survey room 10 is passed through carbon dioxide gas and the process of helium is had to
Slowly, because for survey room 10, the temperature of carbon dioxide gas and helium is very high, and being slowly filled with can keep measuring
Low temperature in cabin 10 is constant.In addition, first placing masking foil in survey room 10, then gas hydrates sample is placed on tinfoil paper
On paper, timely protection when taking out gas hydrates sample to sample is easily facilitated in this way, especially in methane detection instrument 100
It detects when having methane gas in survey room 10, sample can be wrapped with masking foil rapidly, put into liquid nitrogen and freeze, to protect
Card sample is not destroyed.It certainly, in other embodiments, can also be direct by the gas hydrates sample taken out in liquid nitrogen
It is placed in survey room.
With the continuous development of China's economic strength and science and technology, just in the investigation of Efforts To Develop gas hydrates and
Exploit work.Gas hydrates, which are often buried, is more than 800 meters of sea area in the depth of water, and is distributed in 100 meters of seabed or less depth
The layer position in portion.Currently, the acquisition of gas hydrates sample, the method for generalling use probing pressure maintaining coring.So gas water
The funds that the acquisition of conjunction object sample needs to put into are huge, and the gas hydrates sample of Liquid nitrogen storage is of great rarity.The application's
The cubing equipment of gas hydrates can be realized under the premise of guaranteeing that gas hydrates sample is not destroyed to being in
Loose irregular block-like gas hydrates sample volume carries out precise measurement, and the research for gas hydrates has
Significance.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection of the utility model claims
Within the scope of.
Claims (8)
1. a kind of cubing equipment of gas hydrates characterized by comprising
Survey room (10), for placing gas hydrates sample；
Thermostat (20) is matched with the survey room (10) so as to be maintained at predetermined temperature in the survey room (10)；
Gas absorption bottle (30) is connected to the survey room (10) by connecting line (40), is set on the connecting line (40)
It is equipped with the first block valve (101), is contained with calcium chloride solution, the liquid level of the calcium chloride solution in the gas absorption bottle (30)
The nozzle being connected to lower than the connecting line (40) with the survey room (10)；
Inlet duct (50), the inlet duct (50) are connected to the survey room (10)；
Weighing device, the quality for being passed through the calcium carbonate solid generated in calcium chloride solution for weighing carbon dioxide gas.
2. the cubing equipment of gas hydrates according to claim 1, which is characterized in that further include first exhaust
Pipeline (60), carbon dioxide survey meter (70) and thermometer (80), the first exhaust pipeline (60) and the survey room
(10) top is connected to, and is provided with the second block valve (102) on the first exhaust pipeline (60), the carbon dioxide survey meter
(70) thermometric end of end of probe and the thermometer (80) stretches in the survey room (10).
3. the cubing equipment of gas hydrates according to claim 1, which is characterized in that the inlet duct
It (50) include the first air inlet pipeline (51) for being filled with carbon dioxide gas and the second air inlet for being filled with inert gas
Pipeline (52), first air inlet pipeline (51) are connected to the bottom of the survey room (10), second air inlet pipeline (52)
Be connected to the top of the survey room (10), the both ends of the connecting line (40) respectively with the bottom of the survey room (10) and
The bottom of the gas absorption bottle (30) is connected to, and is provided with third block valve (103) on first air inlet pipeline (51), described
The 4th block valve (104) is provided on second air inlet pipeline (52).
4. the cubing equipment of gas hydrates according to claim 1, which is characterized in that further include second exhaust
Pipeline (90), the second exhaust pipeline (90) are connected to the top of the gas absorption bottle (30), the second exhaust pipeline
(90) the 5th block valve (105) is provided on, the calcium chloride solution is full of the gas absorption bottle (30).
5. the cubing equipment of gas hydrates according to any one of claim 1 to 4, which is characterized in that institute
Calcium chloride solution is stated as saturation calcium chloride solution.
6. the cubing equipment of gas hydrates according to any one of claim 1 to 4, which is characterized in that also
Including methane detection instrument (100), the end of probe of the methane detection instrument (100) is stretched in the survey room (10).
7. the cubing equipment of gas hydrates according to claim 2, which is characterized in that the survey room (10)
Including the sealing cover (12) that open-topped cabin (11) and lid are located on the cabin (11), the first exhaust pipeline
(60) it is connected on the sealing cover (12).
8. the cubing equipment of gas hydrates according to any one of claim 1 to 4, which is characterized in that institute
Predetermined temperature is stated greater than -56.6 DEG C and is less than -45 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820638397.0U CN208296929U (en) | 2018-04-28 | 2018-04-28 | The cubing equipment of gas hydrates |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820638397.0U CN208296929U (en) | 2018-04-28 | 2018-04-28 | The cubing equipment of gas hydrates |
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| CN208296929U true CN208296929U (en) | 2018-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000751A (en) * | 2018-04-28 | 2018-12-14 | 广州海洋地质调查局 | The cubing device and method of gas hydrates |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000751A (en) * | 2018-04-28 | 2018-12-14 | 广州海洋地质调查局 | The cubing device and method of gas hydrates |
| CN109000751B (en) * | 2018-04-28 | 2020-03-06 | 广州海洋地质调查局 | Volume measuring equipment and method for natural gas hydrate |
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Granted publication date: 20181228 |