CN108444882A - Experiment platform for measuring deep well exhaust efficiency - Google Patents
Experiment platform for measuring deep well exhaust efficiency Download PDFInfo
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- CN108444882A CN108444882A CN201810044130.3A CN201810044130A CN108444882A CN 108444882 A CN108444882 A CN 108444882A CN 201810044130 A CN201810044130 A CN 201810044130A CN 108444882 A CN108444882 A CN 108444882A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 17
- 238000000926 separation method Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000000571 coke Substances 0.000 abstract description 22
- 239000004744 fabric Substances 0.000 abstract description 12
- 239000002245 particle Substances 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000003570 air Substances 0.000 description 100
- 239000007789 gas Substances 0.000 description 67
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002274 desiccant Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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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
-
- 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
- G01N2015/084—Testing filters
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Volume Flow (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an experimental platform for measuring deep well exhaust efficiency, and relates to the technical field of grounding in direct current transmission engineering. The method is used for solving the problem of optimizing the exhaust efficiency of the deep well where the vertical grounding electrode is located. The experiment platform for measuring the deep well exhaust efficiency comprises a gas supply device, an experiment device and a gas velocity measuring device, wherein the gas supply device is used for outputting gas; the experimental device comprises an experimental barrel and a sealing cover detachably connected to an opening at the upper end of the experimental barrel, a first air inlet pipe and a first exhaust pipe are arranged on the sealing cover in a penetrating manner, the upper end of the first air inlet pipe is connected with an air supply device, an air outlet hole is formed in the side wall of the lower end of the first exhaust pipe, and an air inlet hole is formed in the side wall of the lower end of the first exhaust pipe; the gas velocity measuring device is used for measuring the velocity of gas exhausted by the first exhaust pipe. The experiment platform is used for testing the exhaust efficiency of deep wells in which different coke particle sizes, different coke water contents and different filter cloth drooping direct landings are located.
Description
Technical field
The present invention relates to the grounding technology fields in DC transmission engineering, more particularly to one kind is for measuring deep-well exhaust effect
The experiment porch of rate.
Background technology
Currently, in grounding technology field in DC transmission engineering, deep-well type vertical grounding electrode refers to erecting feed rod
A kind of ground structure that straight cutting is entered in Deep Underground and filled using coke, it is deep compared to the horizontal grounding pole of shallow buried type
Well type vertical grounding electrode is because its requirement small with floor space, to addressing region is low, ground resistance is small low with step voltage etc.
Advantage, and obtained more and more concerns.
For feed rod in deep-well type vertical grounding electrode during to stratum diffusing, ideal state is to pass through feed rod
The path on → coke → stratum is conductive as electrons, but in fact, inevitably there is water in deep-well, electric current is in water
When middle conduction, it is easy to decompose water and generates the hydrogen and oxygen for being insoluble in water, if deep-well cannot be effectively discharged in hydrogen and oxygen,
It will be attached in the form of bubble in the filled media in deep-well, with being continuously increased for gas flow, ground resistance accordingly increases,
Feed rod is eventually led to be unable to fully spill into electric current in stratum.
In order to avoid the above problem, a solution in the prior art is several centimeters installations one around feed rod
Root or the more exhaust pipes parallel with feed rod offer air admission hole on the side wall of exhaust pipe, and air inlet position is coated with for keeping away
Exempt from the filter cloth that coke blocks air admission hole, the filter cloth that the hydrogen and oxygen generated in such deep-well may pass through air inlet position enters exhaust
In pipe, and it is discharged by exhaust pipe.But coke, as the main filler between underground feed rod and the borehole wall, moisture content is big
The filter cloth type coated in small, particle size and exhaust pipe will directly affect the exhaust efficiency of deep-well residing for earthing pole.But
It is the exhaust that there is no at present about deep-well residing for coke particle diameter size, coke water content size and filter cloth type and earthing pole
The research of relationship between efficiency, to be difficult to select suitable coke particle diameter, coke water content and filter cloth type, and then cannot
The exhaust efficiency of deep-well residing for earthing pole is set to be optimal.
Invention content
The present invention provides a kind of experiment porch for measuring deep-well exhaust efficiency, for solving how to make vertical grounding electrode
The problem of exhaust efficiency of residing deep-well is optimal.
In order to achieve the above objectives, the present invention provides a kind of experiment porch for measuring deep-well exhaust efficiency, including supply
The gentle speed measuring device of device of air, experimental provision,
The feeder is used for output gas；
The experimental provision includes experiment bucket and the sealing cover that is removably connected at the upper end opening of experiment bucket, described
The first air inlet pipe vertically extended and downtake pipe, the upper end opening of first air inlet pipe are equipped on sealing cover
It is connected to the gas delivery port of the feeder, the lower end of first air inlet pipe and the downtake pipe is stretched into described
Bottom space in experiment bucket, and the lower ending opening of first air inlet pipe and the downtake pipe is all closed, described first
Venthole is offered in the bottom side of the wall of air inlet pipe, and air admission hole is offered in the bottom side of the wall of the downtake pipe；
The gas velocity measuring device is used to measure the speed for the gas being discharged by the downtake pipe.
Specifically, the gas velocity measuring device includes the first hermetically sealed can, the second hermetically sealed can and the first electronic scale,
Water is stored in first hermetically sealed can, and the second air inlet pipe and drain pipe, institute are connected on first hermetically sealed can
The one end for stating the second air inlet pipe is connected to one end that the downtake pipe stretches out outside the experiment bucket, the other end and described first
The superjacent air space connection of water, one end of the drain pipe are immersed in the water in first hermetically sealed can in hermetically sealed can, and the other end is stretched
Go out outside first hermetically sealed can,
Second hermetically sealed can is located on first electronic scale, and is connected with inlet tube on second hermetically sealed can, institute
The one end for stating inlet tube is connected to the one end stretched out on the drain pipe outside first hermetically sealed can, the other end and described second close
The inner space of sealed cans is connected to.
Further, the experiment porch further includes gas-liquid separation device, and the gas-liquid separation device is connected to the reality
Between experiment device and the gas velocity measuring device, for measuring the downtake pipe discharge by the gas velocity measuring device
Gas speed before, isolate the moisture in the gas of downtake pipe discharge.
Specifically, the gas-liquid separation device includes third hermetically sealed can,
The third hermetically sealed can is connected with third air inlet pipe and second exhaust pipe, one end of the third air inlet pipe with it is described
Downtake pipe stretches out the connection of one end outside the experiment bucket, and the other end is connected to the third hermetically sealed can, the second exhaust
One end of pipe is connected to the upper space in the third hermetically sealed can, and the other end and second air inlet pipe stretching described first are close
One end of sealed cans is connected to.
Preferably, water supply pipe is equipped on the side wall of the experiment bucket or on the sealing cover, the water supply pipe exposes institute
It states and is serially connected with controlled valve on the pipeline section outside experiment bucket.
Further, the quantity of the downtake pipe is multiple, multiple downtake pipes and first air inlet
Spacing between pipe is different, and each downtake pipe exposes and is serially connected with switch on the pipeline section outside the experiment bucket
Valve.
Preferably, the quantity of the downtake pipe is two, two downtake pipes and first air inlet pipe
Between spacing be respectively 20mm and 50mm.
Preferably, the gas-liquid separation device further includes the second electronic scale, and the third hermetically sealed can is positioned over described second
On electronic scale.
Preferably, the gas velocity measuring device further includes third electronic scale, and first hermetically sealed can is positioned over the third
On electronic scale.
Further, the feeder includes air compressor, air accumulator and regulating device, the air compressor
It being stored to the air accumulator in compressed air, and by compressed air, the air accumulator is connected to first air inlet pipe,
The regulating device is used to adjust the power of the air compressor.
Preferably, it is equipped with air gauge in first air inlet pipe and the downtake pipe.
A kind of experiment porch for measuring deep-well exhaust efficiency provided by the invention, after gas is exported by feeder,
Can by the upper end opening of the first air inlet pipe enter the first air inlet pipe in, and by the venthole in the bottom side of the wall of the first air inlet pipe into
Enter in experiment bucket, can be entered in downtake pipe by the air admission hole of downtake pipe lower end into the gas in experiment bucket, and by
Downtake pipe is discharged, and the speed of the gas of downtake pipe discharge is measured finally by gas velocity measuring device.Open sealing
Cover and added into experiment bucket different-grain diameter, the coke of different moisture content or in the lower end of the first air inlet pipe and downtake pipe
Different filter clothes are coated, and carry out many experiments, you can are obtained under the coke filled media of different-grain diameter, different moisture content and not
Exhaust efficiency under the filter cloth of same type, so as to select the filter cloth of suitable type to coat the exhaust pipe in deep-well,
And appropriate particle size, the coke filled media of appropriate moisture content is selected to fill the deep-well residing for vertical grounding electrode, so as to hang down
The exhaust efficiency of deep-well residing for direct earth polar is optimal.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram for the experiment porch that the embodiment of the present invention is used to measure deep-well exhaust efficiency.
Reference numeral：
1-feeder；11-air compressors；12-air accumulators；13-the first air gauge；2-experimental provisions；21—
Experiment bucket；22-sealing covers；23-the first air inlet pipe；24-downtake pipes；25-ventholes；26-air admission holes；27-mend
Water pipe；28-the second air gauge；3-gas velocity measuring devices；31-the first hermetically sealed can；32-the second hermetically sealed can；33-the first electricity
Son claims；34-the second air inlet pipe；35-drain pipes；36-inlet tubes；37-filler pipes；38-the first drainpipe；39-thirds
Electronic scale；4-gas-liquid separation devices；41-third hermetically sealed cans；42-third air inlet pipe；43-second exhaust pipes；44-the second
Drainpipe；45-the second electronic scale；100-filter clothes.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "center", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In description of the invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Referring to Fig.1, Fig. 1 is a specific implementation of the experiment porch that the embodiment of the present invention is used to measure deep-well exhaust efficiency
The experiment porch for measuring deep-well exhaust efficiency of example, the present embodiment includes that feeder 1, experimental provision 2 and gas velocity measure
Device 3, the feeder 1 are used for output gas；The experimental provision 2 is including experiment bucket 21 and is removably connected to experiment
Sealing cover 22 at the upper end opening of bucket 21 is equipped with 23 He of the first air inlet pipe vertically extended on the sealing cover 22
The upper end opening of downtake pipe 24, first air inlet pipe 23 is connected to the gas delivery port of the feeder 1, and described
The bottom space in the experiment bucket 21 is stretched into the lower end of one air inlet pipe 23 and the downtake pipe 24, and described first into
The lower ending opening of tracheae 23 and the downtake pipe 24 is all closed, and is offered out in the bottom side of the wall of first air inlet pipe 23
Stomata 25 offers air admission hole 26 in the bottom side of the wall of the downtake pipe 24；The gas velocity measuring device 3 for measure by
The speed for the gas that the downtake pipe 24 is discharged.
A kind of experiment porch for measuring deep-well exhaust efficiency provided by the invention, after gas is exported by feeder 1,
It can be entered in the first air inlet pipe 23 by the upper end opening of the first air inlet pipe 23, and by going out in the bottom side of the wall of the first air inlet pipe 23
Stomata 25 enters in experiment bucket 21, can enter the by the air admission hole 26 of 24 lower end of downtake pipe into the gas in experiment bucket 21
It in one exhaust pipe 24, and is discharged by downtake pipe 24, measuring downtake pipe 24 finally by gas velocity measuring device 3 is discharged
Gas speed.By open sealing cover 22 and into experiment bucket 21 add different-grain diameter, different moisture content coke or
Different filter clothes 100 are coated in the lower end of the first air inlet pipe 23 and downtake pipe 24, and carry out many experiments, you can obtain difference
Grain size, different moisture content coke filled media under and different types of filter cloth 100 under exhaust efficiency, so as to select
The filter cloth 100 of suitable type coats the exhaust pipe in deep-well, and selects the coke filling of appropriate particle size, appropriate moisture content
Medium fills the deep-well residing for deep-well residing for vertical grounding electrode, so that the exhaust efficiency of deep-well residing for vertical grounding electrode reaches
To optimal.
In the above-described embodiments, it should be noted that in order to effectively simulate the hydrogen and oxygen in deep-well, feeder 1
The gas of output also should be the gas for being insoluble in water, wherein the gas for being insoluble in water refers to that the meltage in every liter of water is less than
Or this kind of gas equal to 18 milliliters, specifically, the gas that feeder 1 exports can be nitrogen, air, oxygen etc.,
This is not specifically limited.Preferably, the gas that feeder 1 exports is nitrogen or air, and nitrogen and air are in nature
Storage level it is big, it is at low cost, be easy to get.
Wherein, the shape and volume of experiment bucket 21 are not specifically limited, it is exemplary, as shown in Figure 1, experiment bucket 21 can be with
For the cylinder barrel of diameter 50cm, high 50cm.
It is removably connected in experiment bucket 21 in addition, sealing cover 22 can be connected through a screw thread structure, card can also be passed through
Locking connection structure is removably connected in experiment bucket 21, is not specifically limited herein.
Specifically, gas velocity measuring device 3 can be made as structure shown in Fig. 1, that is, gas velocity measuring device 3 includes first close
Sealed cans 31, the second hermetically sealed can 32 and the first electronic scale 33 store water in first hermetically sealed can 31, are connected on the first hermetically sealed can 31
Second air inlet pipe 34 and drain pipe 35, one end that one end and the downtake pipe 24 of the second air inlet pipe 34 stretch out outside experiment bucket 21 connect
Logical, the other end is connected to the superjacent air space of water in the first hermetically sealed can 31, and one end of drain pipe 35 is immersed in the first hermetically sealed can 31
In water, the other end stretches out outside the first hermetically sealed can 31, and the second hermetically sealed can 32 is located on the first electronic scale 33, and on the second hermetically sealed can 32
It is connected with inlet tube 36, one end of inlet tube 36 is connected to the one end stretched out on drain pipe 35 outside first hermetically sealed can 31, the other end
It is connected to the inner space of the second hermetically sealed can 32.In this way, the gas being discharged by downtake pipe 24 can be passed through the first hermetically sealed can 31
The superjacent air space of interior water, with gradually increasing for the gas in this space, air pressure also gradually increases, thus by water by drain pipe 35
It has been pressed into the second hermetically sealed can 32 with inlet tube 36, the water into the second hermetically sealed can 32 can get by the first electronic scale 33
Quality, and volume is gone out according to Mass Calculation, so as to obtain the volume for the gas being passed through in the first hermetically sealed can 31, Chu Yishi
Between, you can obtain the speed that gas is discharged in downtake pipe 24.This is simple in structure, easy to implement, and passes through the first electronic scale 33
The volume for obtaining water in the second hermetically sealed can 32, can avoid artificial error in reading, to ensure that the measurement accuracy of gas velocity.
Wherein, in order to water is added into the first hermetically sealed can 31, it is preferred that as shown in Figure 1, the first hermetically sealed can 31 be connected with plus
Water pipe 37, filler pipe 37 exposes is serially connected with controlled valve on the pipeline section outside the first hermetically sealed can 31, can be to first by this filler pipe
Water is added in hermetically sealed can 31.
In addition, in order to remove the water in the second hermetically sealed can 32, in order to be tested next time, it is preferred that such as Fig. 1 institutes
Show, the side wall lower ends of the second hermetically sealed can 32 are equipped with the first drainpipe 38, and the first drainpipe 38 exposes the pipeline section of the second hermetically sealed can 32
On be serially connected with controlled valve.
Further, in order to improve the measurement accuracy of gas velocity, it is preferred that as shown in Figure 1, experiment porch further includes
Gas-liquid separation device 4, gas-liquid separation device 4 are connected between experimental provision 2 and gas velocity measuring device 3, for passing through gas velocity
Before measuring device 3 measures the speed for the gas that downtake pipe 24 is discharged, in the gas for isolating the discharge of downtake pipe 24
Moisture.In this way, the water avoided in gas generates interference to the tachometric survey of gas, to ensure that the measurement of gas velocity
Accuracy.
In the above-described embodiments, the structure of gas-liquid separation device 4 is not specifically limited.It is exemplary, gas-liquid separation device
Can be the desiccant cartridge for being serially connected in downtake pipe and accommodating drier, the dehumidifying effect of desiccant cartridge is limited, and the service life compared with
Short, must replace drier in use for some time can just be continuing with.Again exemplary, gas-liquid separation device 4 can make
For structure shown in Fig. 1, that is, gas-liquid separation device 4 includes third hermetically sealed can 41, and third hermetically sealed can 41 is connected with third air inlet pipe 42
It is connected to one end that downtake pipe 24 stretches out outside the experiment bucket 21 with one end of second exhaust pipe 43, third air inlet pipe 42,
The other end is connected to the third hermetically sealed can 41, and one end and the upper space in third hermetically sealed can 41 of second exhaust pipe 43 connect
Logical, one end that the other end stretches out the first hermetically sealed can 31 with the second air inlet pipe 34 is connected to.In this way, gas leads to by third air inlet pipe 42
After entering third hermetically sealed can 41, the moisture in gas will downwards fall under self gravitation effect and store to third hermetically sealed can 41
Bottom space, gas is discharged the upper space risen in third hermetically sealed can 41 and by second exhaust pipe 43, thus removed
Moisture in gas.This is simple in structure, easy to implement, and lasts a long time.
Wherein, in order to remove the water in third hermetically sealed can 41, in order to carry out next experiment, it is preferred that as shown in Figure 1,
The side wall lower ends of third hermetically sealed can 41 are equipped with the second drainpipe 44, are gone here and there on the pipeline section of the second drainpipe 44 exposing third hermetically sealed can 41
It is connected to controlled valve.
For the ease of the coke of the configuration different moisture content in experiment bucket 21, it is preferred that as shown in Figure 1, experiment bucket 21
Water supply pipe 27 is equipped on side wall or on sealing cover 22, water supply pipe 27 exposes is serially connected with switch valve on the pipeline section outside experiment bucket 21
Door.In this way, when the coke for terminating in primary experiment, and replacing more high-moisture is tested, it can open and be gone here and there on water supply pipe 27
The controlled valve connect, to supplement water into experiment bucket 21 by water supply pipe 27, you can increase the coke water content in experiment bucket 21,
Without opening sealing cover 22, therefore water-refilling operation process is simple, easy to implement.
In the prior art, the exhaust in addition to coke water content, coke granule and filter cloth type to deep-well residing for earthing pole
Except efficiency has an impact, the spacing size between feed rod and exhaust pipe also has shadow to the exhaust efficiency of deep-well residing for earthing pole
It rings, in order to obtain the relationship between the exhaust efficiency of deep-well residing for the spacing between feed rod, exhaust pipe and earthing pole, preferably
, as shown in Figure 1, the quantity of downtake pipe 24 be it is multiple, between multiple downtake pipes 24 and the first air inlet pipe 23 between
Away from different, and each downtake pipe 24 exposes and is serially connected with controlled valve on the pipeline section outside experiment bucket 21.In this way,
The lower end of one air inlet pipe 23 and downtake pipe 24 coats filter cloth 100, and addition has certain water content into experiment bucket 21
After coke granule, 24 priority of multiple downtake pipes can be connect with gas velocity measuring device 3, to carry out test of many times and measure feedback
The exhaust efficiency under different spacing between torch, exhaust pipe, to obtain the spacing between feed rod, exhaust pipe and earthing pole
Relationship between the exhaust efficiency of residing deep-well, and then the spacing between suitable feed rod, exhaust pipe can be selected, so as to connect
The exhaust efficiency of deep-well residing for earth polar is optimal.
Wherein, the quantity of downtake pipe 24 can be two, three, four etc., be not specifically limited herein, optional
, as shown in Figure 1, the quantity of downtake pipe 24 be two, between two downtake pipes 24 and the first air inlet pipe 23 between
Away from respectively 20mm and 50mm.
In order to examine the sealing tightness of experiment bucket 21, it is preferred that as shown in Figure 1, gas-liquid separation device 4 further includes second
Electronic scale 45, third hermetically sealed can 41 are positioned on the second electronic scale 45, in this way, can obtain third sealing by the second electronic scale 45
The quality for the water isolated in tank 41, and the volume of water is calculated, when the volume of water in third hermetically sealed can 41 is located at the first default model
When enclosing interior, then it is higher to illustrate that experiment bucket 21 seals tightness；When the volume of water in third hermetically sealed can 41 is less than the first preset range
When interior minimum value, then illustrate that experiment bucket 21 is poorly sealed.
Wherein, the specific value range of the first preset range is not limited, can be specifically determined according to actual conditions.
In order to examine the measurement accuracy of gas velocity measuring device 3, it is preferred that as shown in Figure 1, gas velocity measuring device 3 is also wrapped
Third electronic scale 39 is included, the first hermetically sealed can 31 is positioned on third electronic scale 39, in this way, can get the by third electronic scale 39
The quality of the water of one hermetically sealed can 31 discharge, so as to calculate the quality for the water that the first hermetically sealed can 31 is discharged, due to theoretically
The volume of water received in the water of first hermetically sealed can 31 discharge and the second hermetically sealed can 32 is equal, therefore, if passing through third electronic scale
The volume of the water of 39 the first hermetically sealed can 31 discharges obtained is received with the second hermetically sealed can 32 obtained by the first electronic scale 33
The volume of water differ, then show that the measurement result of gas velocity measuring device 3 is inaccurate.
In order to test out the critical pressure value for the gas that can be discharged by downtake pipe 24, it is preferred that feeder 1 wraps
Air compressor 11, air accumulator 12 and regulating device (not shown) are included, air compressor 11 is used for compressed air, and will pressure
Air after contracting is stored to air accumulator 12, and air accumulator 12 is connected to the first air inlet pipe 23, and regulating device is for adjusting air pressure
The power of contracting machine 11.In this way, by 11 compressed air of air compressor, and by compressed-air-storing in air accumulator 12, with reality
The caching of existing gas, in favor of improving the stability into the gas pressure of the first air inlet pipe 23, by adjusting air compressor
11 power, you can the gas pressure in air accumulator 12 is adjusted, so as to adjust the gas pressure for entering the first air inlet pipe 23,
By the ascending gradual gas pressure adjusted in air accumulator 12 of regulating device, while detecting the exhaust effect of downtake pipe 24
Rate, when the exhaust efficiency of downtake pipe 24 is not zero, then the gas pressure that current air accumulator 12 exports is critical pressure.
Wherein, the parameter of feeder 1 is not specifically limited, exemplary, the power of air compressor 11 is more than or waits
In 5kW, capacity is greater than or equal to 10L/S, and the volume of air accumulator 12 is more than 30L, can ensure stabilization during the experiment
Throughput, while it being capable of providing stable gas pressure, pressure limit is 0.1Mpa~0.5Mpa.
In addition, in order to detect the supply gas pressure of feeder 1, optionally, as shown in Figure 1, being connected on air accumulator 12
One air gauge 13, the first air gauge 13 are used to detect the gas pressure in air accumulator 12, it is generally the case that the gas in air accumulator 12
Body pressure is equal with the supply gas pressure of feeder 1, in this way, being the confession that can detect that feeder 1 by the first air gauge 13
Atmospheric pressure.
In order to detect the sealing tightness of the connecting tube between feeder 1 and experiment bucket 21, and in order to further examine
Survey the sealing tightness of experiment bucket 21, it is preferred that be respectively equipped with the second air gauge in the first air inlet pipe 23 and downtake pipe 24
28 and third air gauge (not shown).When the detected value of the second air gauge 28 is located in the second preset range, then illustrate
The sealing tightness of connecting tube between feeder 1 and experiment bucket 21 is higher；When the detected value of the second air gauge 28 is less than the
When minimum value in two preset ranges, then illustrate that the connecting tube between feeder 1 and experiment bucket 21 is poorly sealed；When the second gas
The detected value of pressure table 28 is located in the second preset range, and when the barometric detected value of third is located in third preset range, then
Illustrate that the sealing tightness of the connecting tube and experiment bucket 21 between feeder 1 and experiment bucket 21 is higher；When the second air gauge
28 detected value is located in the second preset range, and the barometric detected value of third is less than the minimum value in third preset range
When, then illustrate that experiment bucket 21 is poorly sealed.
In the above-described embodiments, the specific value range of the second preset range and third preset range is not limited, specifically
It can be determined according to actual conditions.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (11)
1. a kind of experiment porch for measuring deep-well exhaust efficiency, which is characterized in that gentle including feeder, experimental provision
Speed measuring device,
The feeder is used for output gas；
The experimental provision includes experiment bucket and the sealing cover that is removably connected at the upper end opening of experiment bucket, the sealing
It covers and is equipped with the first air inlet pipe vertically extended and downtake pipe, the upper end opening of first air inlet pipe and institute
The gas delivery port for stating feeder is connected to, and the experiment is stretched into the lower end of first air inlet pipe and the downtake pipe
Bottom space in bucket, and the lower ending opening of first air inlet pipe and the downtake pipe is all closed, first air inlet
Venthole is offered in the bottom side of the wall of pipe, and air admission hole is offered in the bottom side of the wall of the downtake pipe；
The gas velocity measuring device is used to measure the speed for the gas being discharged by the downtake pipe.
2. experiment porch according to claim 1, which is characterized in that the gas velocity measuring device include the first hermetically sealed can,
Second hermetically sealed can and the first electronic scale,
Water is stored in first hermetically sealed can, is connected with the second air inlet pipe and drain pipe on first hermetically sealed can, described
One end of two air inlet pipe is connected to one end that the downtake pipe stretches out outside the experiment bucket, and the other end is sealed with described first
The superjacent air space connection of water, one end of the drain pipe are immersed in the water in first hermetically sealed can in tank, and the other end stretches out institute
It states outside the first hermetically sealed can,
Second hermetically sealed can is located on first electronic scale, and inlet tube is connected on second hermetically sealed can, it is described into
One end of liquid pipe is connected to the one end stretched out on the drain pipe outside first hermetically sealed can, the other end and second hermetically sealed can
Inner space connection.
3. experiment porch according to claim 1 or 2, which is characterized in that further include gas-liquid separation device, the gas-liquid point
It is connected between the experimental provision and the gas velocity measuring device from device, for being measured by the gas velocity measuring device
Before the speed of the gas of the downtake pipe discharge, the moisture in the gas of the downtake pipe discharge is isolated.
4. experiment porch according to claim 3, which is characterized in that the gas-liquid separation device includes third hermetically sealed can,
The third hermetically sealed can is connected with third air inlet pipe and second exhaust pipe, one end of the third air inlet pipe and described first
Exhaust pipe stretches out the connection of one end outside the experiment bucket, and the other end is connected to the third hermetically sealed can, the second exhaust pipe
One end is connected to the upper space in the third hermetically sealed can, and the other end stretches out first hermetically sealed can with second air inlet pipe
One end connection.
5. experiment porch according to claim 1, which is characterized in that on the side wall of the experiment bucket or on the sealing cover
It is equipped with water supply pipe, the water supply pipe exposes is serially connected with controlled valve on the pipeline section outside the experiment bucket.
6. experiment porch according to claim 1, which is characterized in that the quantity of the downtake pipe be it is multiple, it is multiple
Spacing between the downtake pipe and first air inlet pipe is different, and described in each downtake pipe exposing
It is serially connected with controlled valve on pipeline section outside experiment bucket.
7. experiment porch according to claim 6, which is characterized in that the quantity of the downtake pipe is two, two
Spacing between the downtake pipe and first air inlet pipe is respectively 20mm and 50mm.
8. experiment porch according to claim 4, which is characterized in that the gas-liquid separation device further includes the second electronics
Claim, the third hermetically sealed can is positioned on second electronic scale.
9. experiment porch according to claim 2, which is characterized in that the gas velocity measuring device further includes third electronics
Claim, first hermetically sealed can is positioned on the third electronic scale.
10. experiment porch according to claim 1, which is characterized in that the feeder includes air compressor, gas storage
Tank and regulating device, the air compressor is used for compressed air, and compressed air is stored to the air accumulator, institute
It states air accumulator to be connected to first air inlet pipe, the regulating device is used to adjust the power of the air compressor.
11. experiment porch according to claim 1, which is characterized in that first air inlet pipe and the downtake pipe
Inside it is equipped with air gauge.
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| CN110600903A (en) * | 2019-09-20 | 2019-12-20 | 南方电网科学研究院有限责任公司 | Coke mixed liquid of deep well type direct current grounding electrode and filling method thereof |
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