CN106223992B - High-temperature mine partial cooling system and method - Google Patents
High-temperature mine partial cooling system and method Download PDFInfo
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- CN106223992B CN106223992B CN201610756432.4A CN201610756432A CN106223992B CN 106223992 B CN106223992 B CN 106223992B CN 201610756432 A CN201610756432 A CN 201610756432A CN 106223992 B CN106223992 B CN 106223992B
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- 238000001816 cooling Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title abstract description 7
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 238000004064 recycling Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 description 11
- 239000003245 coal Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000112 cooling gas Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C13/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
- F01C20/08—Control of, monitoring of, or safety arrangements for, machines or engines characterised by varying the rotational speed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Wind Motors (AREA)
Abstract
The embodiment of the present invention provides a kind of high-temperature mine partial cooling system and method.Wherein partial cooling system includes: including ground unit and downhole unit；Wherein: ground unit includes: air compressor unit, for compressing to ground air；And cooling unit, it is connected with the air compressor unit, for recycling through the thermal energy in the air compressor unit treated ground air；Downhole unit includes: expanding machine, is connected with the cooling unit, the pressure energy in treated for recycling cooling unit ground air；And injector, it is connected with the expanding machine, with injection entrance and injection entrance；Wherein, underground fresh air and treated after ground air mixes in the injector through the injection entrance and the injection entrance respectively through the expanding machine is sent to needing wind place.Partial cooling system of the invention effectively reduces the conveying capacity of ground air.
Description
Technical field
The present invention relates to the falling temperature techniques and waste heat hydraulic recovery technical field in high-temperature mine, and in particular to Yi Zhonggao
Warm mine partial cooling system and method.
Background technique
With the fast development of economy and society, the mankind are in the demand of the energy and will be chronically at becoming for growth
Gesture.Although having obtained quick development in the utilization technology of renewable energy (such as solar energy, wind energy), but China is to coal
Demand still occupy 70% or so of national non-renewable energy total energy consumption.In the case of coal resources are certain, coal is needed
The continuous of the amount of asking increases the increase for being just necessarily accompanied with coal mining depth, and with the increase subsurface environment of depth in mine
Temperature and humidity can be higher and higher, as the temperature of part driving face alreadys exceed 40 DEG C.Obviously, the high temperature and humidity ring of underground
Border seriously affects the physical and mental health of worker and the operation condition of equipment component, and labor productivity also substantially reduces therewith.
The equipment, work by using mobile cold source in each job site or resting space, to underground main at present
Make personnel and space carries out the mode of partial cooling to solve the high temperature defect of subsurface environment.The partial cooling mode of high-temperature mine
The main partial cooling including vapour compression refrigerator and the ice cube partial cooling based on phase transformation etc..Steam compression type refrigeration
There is the defects of big, investment of equipment is at high cost, operation and maintenance are inconvenient, condenser heat extraction is difficult that take up space in unit.It is based on
The ice cube partial cooling mode of phase transformation needs constantly from ground to delivered downhole ice cube, the problems such as often blocking, and
And there is also convey defect at high cost.Generally higher in view of the air themperature of subsurface environment, the refrigerating capacity needed is often very big,
Partial cooling technology is urgently to be further improved.
Summary of the invention
Technical problem
In view of this, how the technical problem to be solved by the present invention is to realizing effective system to the subsurface environment of high temperature
Under the premise of cold, the flexibility of refrigerating efficiency and refrigeration application is improved, the conveying capacity of ground air is reduced.
Solution
In order to solve the above-mentioned technical problem, an embodiment according to the present invention provides a kind of high-temperature mine partial cooling
System.The partial cooling system includes ground unit and downhole unit；Wherein:
Ground unit includes:
Air compressor unit, for being compressed to ground air；And
Cooling unit, is connected with the air compressor unit, for recycling after air compressor unit processing
Ground air in thermal energy；
Downhole unit includes:
Expanding machine is connected with the cooling unit, the pressure in treated for recycling cooling unit ground air
Power energy；And
Injector is connected with the expanding machine, with injection entrance and injection entrance；
Wherein, underground fresh air and through the expanding machine treated ground air respectively through the injection entrance and the spray
After entry portal mixes in the injector, send to needing wind place.
For above-mentioned high-temperature mine partial cooling system, in a kind of possible embodiment, the expanding machine is connected with
Generator, the generator are connected with the load in subsurface environment.
For above-mentioned high-temperature mine partial cooling system, in a kind of possible embodiment, the partial cooling system is also
Including control unit, the control unit includes the second valve of controller Yu the controller communication；
Wherein, second valve is set to the injection inlet of the injector, and the control unit is by adjusting described the
The aperture of two valves changes into the underground fresh air in the injector；
Wherein, the controller also with the power generation mechatronics, encourage by adjusting the generator by the control unit
Magnetoelectricity stream changes the revolving speed of the generator.
For above-mentioned high-temperature mine partial cooling system, in a kind of possible embodiment, the control unit further includes
With the sensor group of the controller communication, the sensor group includes:
Flow sensor, for detecting the flow of the air stream by the expanding machine；
Pressure sensor, the pressure of the air stream for detecting the expanding machine downstream；
First temperature sensor, the temperature of the air stream for detecting the expanding machine downstream；And
Second temperature sensor, the temperature of the air stream for detecting the injector downstream.
For above-mentioned high-temperature mine partial cooling system, in a kind of possible embodiment, the control unit also with sky
Air compressor group and the cooler group communicate respectively, for set the air compressor unit outlet pressure and the cooling
The outlet temperature of unit.
For above-mentioned high-temperature mine partial cooling system, in a kind of possible embodiment, the generator with it is described
Controller is connected, for powering to controller.
For above-mentioned high-temperature mine partial cooling system, in a kind of possible embodiment, the cooling unit is water
The outlet of cooling type cooler group, the cooling unit of the water-cooled is connected with hot-water cylinder or heat-accumulator tank；Or
The cooling unit is the cooling unit of ventilation type, and the outlet of the cooling unit of the ventilation type is connected to heating demands field
It closes.
For above-mentioned high-temperature mine partial cooling system, in a kind of possible embodiment, the cooling unit and institute
It states and is additionally provided with moisture separator between expanding machine.
In order to solve the above-mentioned technical problem, according to another embodiment of the present invention, a kind of high-temperature mine part system is provided
Cooling method.The partial cooling method includes:
Ground air is converted to high pressure air flow after air compressor unit compression；
After the pressure-air flows through the heat exchange of cooler group, high pressure low temperature air-flow is converted to；
The expanded machine pressure recovery energy of the high pressure low temperature air-flow, the pressure energy of recycling are converted into electricity by generator
Energy；
After underground fresh air mixes in injector with the ground air after expanded machine pressure recovery energy, feeding needs wind
Place.
For above-mentioned high-temperature mine partial cooling method, in a kind of possible embodiment, the partial cooling method is also
It include: air pressure and temperature of the control unit according to expanding machine downstream, by the exciting current and the first valve that control generator
The aperture of door, the revolving speed by adjusting expanding machine and the flow into the underground fresh air in injector, so that under injector
Temperature and the flow for swimming the air stream at end are up to standard.
Beneficial effect
High-temperature mine partial cooling system of the invention is recycled using the thermal energy of cooling unit recycling air by expanding machine
Air pressure energy, and electric energy is translated by generator；By injector by expanding machine come out low-temp low-pressure air with
Underground fresh air is mixed and then is sent to needing wind place, then is cooled down to the locally point of underground, and the defeated of ground air is reduced
The amount of sending.
In addition, high-temperature mine partial cooling system of the invention has simple structure, compact to design, flexible operation and system
Advantage at low cost is made, can be used for the partial cooling of the high-temperature mine of various scales and depth.
Detailed description of the invention
When considered in conjunction with the accompanying drawings, the present invention can be more completely and better understood.Attached drawing described herein is used to provide
A further understanding of the present invention, examples and descriptions thereof are used to explain the present invention, does not constitute improper limitations of the present invention.
Fig. 1 shows structural schematic diagram one (controller and the sky of the high-temperature mine partial cooling system of one embodiment of the invention
The cooling unit communication of air compressor group)；
Fig. 2 shows the structural schematic diagram two of the high-temperature mine partial cooling system of one embodiment of the invention (controller not with
The cooling unit communication of air compressor unit).
Description of symbols
10, controller；11, temperature controller；12, the first valve；13, flow sensor；14, pressure sensor；15, the first temperature
Spend sensor；16, second temperature sensor；17, the second valve；20, filter；21, air compressor unit；22, cooling unit；
23, moisture separator；24, hot-water cylinder；30, expanding machine；31, generator；32, injector；33, entrance is sprayed；34, injection enters
Mouthful；35, rectification adverser.
Specific embodiment
Below with reference to attached drawing various exemplary embodiments, feature and the aspect that the present invention will be described in detail.It is identical in attached drawing
Appended drawing reference indicate element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings, remove
It non-specifically points out, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the present invention, numerous details is given in specific embodiment below.
It will be appreciated by those skilled in the art that without certain details, the present invention equally be can be implemented.In some instances, for
Ways and means well known to those skilled in the art are not described in detail, in order to highlight purport of the invention.
Embodiment 1
One embodiment of the present of invention provides a kind of high-temperature mine partial cooling system, mainly before energy regenerating
It puts, effective partial cooling is realized to the hot environment of underground.
As shown in Figure 1, the partial cooling system mainly includes ground unit, downhole unit and control unit.Wherein:
Ground unit is mainly used for high pressure air flow that provide closely upper environment temperature, dry, and by the pressure air
It circulates toward downhole unit.
Downhole unit is mainly used for the high pressure air flow for providing ground unit expansion cooling, and the air for making expansion cool down
It is mixed with underground fresh air, the air stream for needing wind place can be led to by generating, and can be used for cooling down human body or local space etc..
Control unit is then communicated with ground unit and downhole unit respectively, is mainly used for the ginseng to ground unit and downhole unit
Number is adjusted, so that the flow (can such as be described as unit of kg/minute) of the air stream of downhole unit downstream
Reach the standard for needing wind place (such as can be personnel's chamber, equipment chamber, digging laneway and driving face) with temperature.
1) ground unit mainly includes the air compressor unit 21 being connected and cooling unit 22.The fresh sky of ground environment
Gas obtains high temperature and pressure air after the compression of air compressor unit 21；After pressure-air exchanges heat through cooling unit 22, obtain
High pressure low temperature air.
In a kind of possible embodiment, filter 20, ground ring can be equipped in the upstream of air compressor unit 21
The fresh air in border first carries out simple primary filtration via filter 20, filters biggish particle and other impurities in air
Deng entering air compressor unit 21 by air hose later.
In a kind of possible embodiment, the mode that cooling unit 22 exchanges heat may include:
In the case of the temperature such as such as winter are lower, using air cooling principle, such as directly using surrounding air through cooling gas
The high temperature and pressure air that entrance comes out air compressor unit 22 is handled, and cooling gas is discharged in the air heated after air cooling
Behind outlet, into thermal energy recovery unit, such as it is used directly for the heating on the spot of ground unit, indoor heating heating demands field
It closes.
Under the higher situation of the temperature such as such as summer, using water cooling principle, cooling water (such as can be pond water, river water with
And underground water etc.) through coolant inlet enter cooling unit 22, with the height led in cooling unit 22 by air compressor unit 21
Pressure air exchanges heat, and the cooling water being heated up after heat exchange enters thermal energy recovery unit through cooling liquid outlet, can such as lead to
Enter hot-water cylinder 24 to store directly for the use such as mine staff's bathing, can also will be wrapped by heat-accumulator tank (there is heat insulation function)
The water body of heat content temporarily stores.
As can be seen that effectively being recycled by cooling unit 22 to the heat in high pressure-temperature air, by pressure-air
It is changed into high pressure low temperature air.
In a kind of possible embodiment, it can be equipped with moisture separator 23 in the downstream of cooling unit 22, mainly
For separating and being discharged the moisture in the high pressure low temperature air, a degree of dehumidifying, drying are carried out to air stream.
2) downhole unit mainly includes expanding machine 30 and the generator being respectively connected with expanding machine 30 31 and injector 32.
Wherein:
Expanding machine 30 is mainly used for recycling the overbottom pressure in high pressure low temperature air, and high pressure low temperature air is changed into low-pressure low-temperature
Air.
Generator 31 is mainly used for converting overbottom pressure to electric energy, and flows through expanding machine 30 by adjusting its revolving speed to adjust
The flow of air stream.
Injector 32 is mainly used for mixing the low-pressure low-temperature air of 30 downstream of expanding machine and underground fresh air, by temperature and
Flow air up to standard, which is streamed to underground, needs wind place, freezes to people or local environment.
In a kind of possible embodiment, expanding machine 30 is connected to after generator 31, and generator 31 can be further
It is connected by rectification adverser 35 with controller 10, is powered for controller 10, it can also be with the electricity consumption of other in downhole unit
Equipment is connected, such as may include headlamp, mine lamp charging device, pulp shooting machine, roof-bolter, drive hoeing machine and scratch board conveyor.
The high pressure low temperature air obtained after the cell processing of ground enters expanding machine 30 through the first valve 12, and high pressure low temperature air makes to expand
Machine 30 rotates, and the rotation of expanding machine 30 is further driven to 31 rotary electrification of generator, so that being able to will be more than in high pressure low temperature air
Pressure is converted into electric energy.After the electric energy that generator 31 recycles is converted by rectification/inverter 35, by the direct current of generation or friendship
Galvanic electricity provides electric energy for controller 10 and/or other electric appliances, to be able to make full use of the electric energy of recycling.30 pairs of height of expanding machine
Force down warm air overbottom pressure recycled after so that the temperature of air is minimized, obtained low-pressure low-temperature air is through spurting into
Mouth 33 enters injector 32, is sufficiently mixed with the underground fresh air entered in injector 32 through injection entrance 34, until injection
After the air stream of 32 downstream of device reaches the target temperature and target flow of setting, being sent to by air outlet needs wind place.
Partial cooling system of the invention passes through the thermal energy that cooling unit 22 has recycled air stream, is recycled by expanding machine 30
The pressure energy of air stream, and the pressure energy of recycling is further converted to by electric energy by generator 31.Further, since being sent to needs
The air stream in wind place is mixing by low-pressure low-temperature air and underground fresh air, therefore reduces the conveying of ground air
Amount.
3) control unit mainly includes that (such as temperature controller 11 can be with for controller 10 and the temperature controller 11 communicated with controller 10
Belong to a part of cooling unit 22), valve group and sensor group.Valve group therein includes the first valve 12 and the second valve
Door 17, sensor group includes flow sensor 13, pressure sensor 14, the first temperature sensor 15 and second temperature sensor
16。
In a kind of possible embodiment, flow sensor 13 is set to the upstream of expanding machine 30, for detecting by swollen
The flow of the air stream of swollen machine 30.Pressure sensor 14 and the first temperature sensor 15 are set to the downstream of expanding machine 30, respectively
For detecting the pressure and temperature of the air stream of 30 downstream of expanding machine.Second temperature sensor 16 is set under injector 32
Trip, the temperature of the air stream for detecting 32 downstream of injector.
Controller 10 mainly according to downhole unit need wind place required for air stream target temperature and target flow,
The outlet pressure of air compressor unit 21 can directly be set out by communicating with air compressor unit 21, and by with it is cold
But the temperature controller 11 of unit 22 communicates, and sets out the outlet temperature of cooling unit 22.
Controller 10 is also electrically connected with generator 31, mainly by changing the exciting current of generator 31 come regulator generator
31 revolving speed changes the revolving speed of expanding machine 30 will pass through the rotational speed regulation of generator 31, is changed by the revolving speed of expanding machine 30
Become further to adjust the pressure of the air stream of 30 downstream of expanding machine, is adjusted indirectly by the adjusting of the pressure to air stream
The flow of the air stream of 30 downstream of expanding machine.
Wherein, the first valve 12 is set between ground unit and downhole unit, is mainly used for opening or be cut off into swollen
The air stream of swollen machine 30.Wherein in the state that the first valve 12 is to open, according to the flow of the air stream of 30 downstream of expanding machine
With temperature (air stream herein often temperature than need wind place need temperature it is low, flow is also relatively small, thus by with stream
Adjustable, the higher underground fresh air of temperature is measured to be mixed, by underground fresh air " dilution " air stream, with reach dosage,
The purpose of heating).Controller 10 comes by adjusting the aperture of the second valve 17 of 34 upstream of injection entrance for being set to injector 32
Change dilute strength, so that the temperature of the air stream at the air outlet of 32 downstream of injector and flow are up to standard.
Embodiment 2
Another embodiment of the invention provides a kind of high-temperature mine partial cooling method, partial cooling method master
If the exciting current of generator 31 and the aperture of the second valve 17 are adjusted by control unit, sent with realizing to needing wind
The temperature and flow of the air stream of point are up to standard.During this, also passes through the pressure energy of recycling air stream and is converted into electric energy,
And the thermal energy of compressed air stream is effectively recycled.
Specifically, when underground is when needing wind place to need to provide the air stream of set temperature and flow, controller 10 is sent
The signal of the first valve 12 is opened, the air stream of the high pressure low temperature after the cell processing of ground can be sent into swollen through the first valve 12
Swollen machine 30.Controller 10 receives (flow sensor 13, pressure sensor 14, the first temperature sensor 15, second temperature sensor
16) under the flow of the air stream for 30 upstream end of expanding machine detected, the pressure of the air stream of 30 downstream of expanding machine, expanding machine 30
Swim end air stream 32 downstream of temperature and injector air themperature signal, and according to the above-mentioned flow received,
The exciting current of the generator 31 of downhole unit is adjusted in pressure and temperature signal, so that 32 upstream end of injector
The temperature and flow of air stream are up to standard；Controller 10 sends signal to the second valve 17 simultaneously, by adjusting the second valve 17
Aperture, the setting by the way that the temperature of 32 upstream end of injector and flow to be reached to controller 10 are horizontal (with certain pressure, still
Amount less, temperature it is low) air stream with through the second valve 17 entrance injector 32 underground fresh air mix after so that finally to
The temperature and flow of the air stream for needing wind place to export of underground are up to standard.
By the adjusting of the aperture of the exciting current and the second valve 17 to generator 31 of controller 10, so that injector
The temperature and flow of the air stream of 32 downstreams are up to standard.Adjusting method specifically includes that
1) flow of the air stream of 30 downstream of expanding machine is adjusted:
If flow sensor 13 detects the flow of the air stream of 30 upstream end of expanding machine lower than setting in controller 10
When flow, then controller 10 sends the signal for gradually decreasing exciting current to generator 31, so that generator 31 and expanding machine
30 revolving speed increases, and along with the raising of 30 revolving speed of expanding machine, is gradually increased by the flow of the air stream of expanding machine 30, until
Until the flow of the air stream of 30 downstream of expanding machine reaches the flow set in controller 10；And if flow sensor 13 detects
To 30 upstream end of expanding machine air stream flow be higher than controller 10 in set flow when, then controller 10 to excitation generate electricity
Machine 31 sends the control signal that exciting current is gradually increased, so that the revolving speed of generator 31 and expanding machine 30 reduces, along with
The reduction of 30 revolving speed of expanding machine, is gradually reduced by the flow of the air stream of expanding machine 30, until the sky of 30 downstream of expanding machine
Until the flow of air-flow is at least up to the flow set in controller 10.For expanding machine 30, downstream end and upstream end
Flow be it is equal, since the temperature of the air stream of the downstream is lower, so flow sensor is placed in expanding machine 30
Upstream end.For example, the temperature of the air stream of upstream end (expander inlet) is close or the environment of slightly less than ground unit
Temperature, and the air themperature of downstream (expander outlet) can then reduce about 40 DEG C of (expander inlet pressures 0.6MPa, outlet pressures
When power about 0.1Mpa), if therefore when flow sensor is placed in expander outlet, the performance requirement of flow sensor compared with
Height can generate the increase in cost.
2) temperature of the air stream of 30 downstream of expanding machine is adjusted:
If the temperature of the air stream for 30 downstream of expanding machine that the first temperature sensor 15 detects is lower than in controller 10
When the temperature of setting, the exciting current control signal that controller 10 is sent to generator 31 is constant；And if the first temperature sensor
When the temperature of the air stream of 15 30 downstreams of expanding machine detected is higher than the temperature set in controller 10, controller 10 is to encouraging
Magnetic generator 31, which is sent, gradually decreases the control signal of exciting current, until the temperature of the air stream of 30 downstream of expanding machine it
Until the temperature mostly set in controller 10.
3) air themperature and flow of 32 downstream of injector are adjusted:
When the flow of the air stream of 30 downstream of expanding machine is not less than the flow set in controller 10 and air stream
Temperature not higher than the temperature set in controller 10 after, need the temperature and flow with further reference to 32 downstream of injector
(demand for needing wind place), it is up to standard to the temperature and flow that make the air stream at air outlet by " incorporation " underground fresh air.
If the temperature of the air stream for 32 downstream of injector that second temperature sensor 16 detects is lower than in controller 10
When the target temperature of setting, controller 10 sends the signal for increasing valve opening to the second valve 17, until 32 downstream of injector
Until the temperature of the air stream at end reaches the target temperature set in controller 10；And what if second temperature sensor 16 detected
When the temperature signal of 32 downstream of injector is higher than the target temperature set in controller 10, controller 10 is sent out to the second valve 17
The signal for reducing valve opening is sent, until the temperature of the air stream of 32 downstream of injector reaches the target set in controller 10
Until temperature.
In the case of subsurface environment does not need to provide from the flow of fresh air of outdoor low-temp low-pressure, then controller 10
The signal for closing valve is sent to the first valve 12, cuts off air stream.
In a kind of possible embodiment, expanding machine 30 can select single-screw expander, and heat exchanger 13 can be selected
Plate heat exchanger, the first valve 12 and the second valve 17 can select electropneumatic valve, the first temperature sensor 15 and second
Temperature sensor 16 can choose thermocouple, and flow sensor 13 can select turbine meter.
In practical applications, start first to valve (12,17) and controller 10, then start 21 He of air compressor unit
Cooling unit 22, controller 10 sends the signal for opening the first valve 12, so that system integrally enters starting state.In injector
After the temperature and flow of air stream at 32 injection entrance 33 reach temperature and the traffic level of the setting of controller 10, control
Device 10 sends the signal of the second valve 17 of starting, and by adjusting the aperture of the second valve 17, makes the low temperature at injection entrance 33
Low-pressure air and underground fresh air are sufficiently mixed in injector 32, until the temperature and flow of the air stream of 32 downstream of injector
Reach the target temperature and target flow set in controller 10.By controller 10 to the temperature, pressure and flow of air stream
It is detected, and the exciting current of generator 31 and the aperture of the second valve 17 is carried out in real time in real time by controller 10
Adjustment, so that system is in the operating status to tend towards stability always.
It should be noted that although with by controller 10 come the air stream of the downstream of setting air compressor set 21
It is as above that the temperature of pressure and the air stream of cooling 22 downstream of unit as example describes partial cooling system, but this field skill
Art personnel it is understood that the present invention answer it is without being limited thereto.In fact, user can flexibly set completely according to practical application scene
Above-mentioned pressure and temperature parameter.Vertical range as having 1km or so as underground at a distance from ground, controller
10 realize the convenience communicated in the not imagination with ground unit.So in a kind of possible embodiment, it can also be such as Fig. 2
Shown, controller 10 can not the pressure of 21 downstream of setting air compressor set and the temperature of cooling 22 downstream of unit
(i.e. controller 10 is not communicated with air compressor unit 21 and cooling unit 22), and by artificial mode in air compressor
Group 21 and the equipment of cooling unit 22 itself are come the corresponding pressure and temperature set, and other control principles are similar, herein not
It repeats again.
As described above, embodiments of the present invention are described in detail, it is clear that as long as essentially without this hair is detached from
Bright inventive point and effect, obvious variations to those skilled in the art, are also all contained in guarantor of the invention
Within the scope of shield.
Claims (6)
1. a kind of high-temperature mine partial cooling system, which is characterized in that the partial cooling system includes that ground unit and underground are single
Member；Wherein:
1) ground unit includes:
Air compressor unit, for being compressed to ground air；And
Cooling unit, is connected with the air compressor unit, for recycling through the air compressor unit treated ground
Thermal energy in the air of face；
2) downhole unit includes:
Expanding machine is connected with the cooling unit, and the expanding machine is connected with generator, for recycling cooling unit processing
The rear pressure energy in ground air is simultaneously converted into electric energy, and the generator is connected with the load in subsurface environment；With
And
Injector is connected with the expanding machine, with injection entrance and injection entrance；
Wherein, it underground fresh air and through the injection entrance and described is spurted into respectively through the expanding machine treated ground air
After mixing mouthful in the injector, send to needing wind place；
The partial cooling system further includes control unit, the control unit include controller and with the controller communication second
Valve；
Wherein, second valve is set to the injection inlet of the injector, and the control unit is by adjusting second valve
The aperture of door changes into the underground fresh air in the injector；
Wherein, the control unit changes revolving speed and/or the institute of the generator by adjusting the exciting current of the generator
It states generator and provides electric energy for the control unit.
2. high-temperature mine partial cooling system according to claim 1, which is characterized in that the control unit further includes and institute
The sensor group of controller communication is stated, the sensor group includes:
Flow sensor, for detecting the flow of the air stream by the expanding machine；
Pressure sensor, the pressure of the air stream for detecting the expanding machine downstream；
First temperature sensor, the temperature of the air stream for detecting the expanding machine downstream；And
Second temperature sensor, the temperature of the air stream for detecting the injector downstream.
3. high-temperature mine partial cooling system according to claim 1, which is characterized in that the control unit also with air pressure
Contracting unit and the cooler group communicate respectively, for setting the outlet pressure and the cooling unit of the air compressor unit
Outlet temperature.
4. high-temperature mine partial cooling system according to any one of claim 1 to 3, which is characterized in that the cooling
Unit is the cooling unit of water-cooled, and the outlet of the cooling unit of the water-cooled is connected with hot-water cylinder or heat-accumulator tank；Or
The cooling unit is the cooling unit of ventilation type, and the outlet of the cooling unit of the ventilation type is connected to heating demands occasion.
5. high-temperature mine partial cooling system according to any one of claim 1 to 3, which is characterized in that the cooling
Moisture separator is additionally provided between unit and the expanding machine.
6. a kind of high-temperature mine partial cooling method, which is characterized in that the partial cooling method includes: ground air through air pressure
After the compression of contracting unit, high pressure-temperature air stream is converted to；
After the pressure-air flows through the heat exchange of cooler group, high pressure low temperature air-flow is converted to；
The expanded machine pressure recovery energy of the high pressure low temperature air-flow, the pressure energy of recycling are converted into electric energy by generator and are
Load supplying in subsurface environment；
After underground fresh air mixes in injector with the ground air after expanded machine pressure recovery energy, it is sent into needing wind
Point；
The partial cooling method further include:
Control unit passes through the exciting current and the second valve of control generator according to the air pressure and temperature of expanding machine downstream
Aperture, by adjusting expanding machine revolving speed and enter injector in underground fresh air flow so that injector downstream
The temperature and flow of the air stream at end are up to standard.
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| CN201610756432.4A CN106223992B (en) | 2016-08-29 | 2016-08-29 | High-temperature mine partial cooling system and method |
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| CN106223992B true CN106223992B (en) | 2019-06-28 |
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| CN107747497A (en) * | 2017-11-30 | 2018-03-02 | 中国科学院武汉岩土力学研究所 | Heat exchange bolt-spary supports system and country rock cool-down method |
| CN108286454A (en) * | 2018-01-30 | 2018-07-17 | 湖南科技大学 | A kind of local cooling's method of high-temperature mine |
| CN111413061A (en) * | 2020-04-14 | 2020-07-14 | 中国商用飞机有限责任公司 | Low-temperature wind tunnel system |
| CN114777533B (en) * | 2022-06-21 | 2022-09-06 | 四川大学 | Heat exchange and heat recovery system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169040A (en) * | 2006-10-23 | 2008-04-30 | 兖矿新陆建设发展有限公司 | Mine working face cooling system |
| CN102140927A (en) * | 2011-04-29 | 2011-08-03 | 武汉纺织大学 | Method and system for reducing temperature locally under coal mine shaft |
| CN103867241A (en) * | 2012-12-18 | 2014-06-18 | 株式会社神户制钢所 | Power generation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL212814B1 (en) * | 2010-08-23 | 2012-11-30 | Wonam Serwis Spolka Z Ograniczona Odpowiedzialnoscia | Central air conditioning system for the mining headings |
-
2016
- 2016-08-29 CN CN201610756432.4A patent/CN106223992B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169040A (en) * | 2006-10-23 | 2008-04-30 | 兖矿新陆建设发展有限公司 | Mine working face cooling system |
| CN102140927A (en) * | 2011-04-29 | 2011-08-03 | 武汉纺织大学 | Method and system for reducing temperature locally under coal mine shaft |
| CN103867241A (en) * | 2012-12-18 | 2014-06-18 | 株式会社神户制钢所 | Power generation device |
Non-Patent Citations (1)
| Title |
|---|
| 高温矿井独头掘进面降温技术研究与方案对比;宋桂梅、张朝昌;《矿业安全与环保》;20060215;第33卷(第1期);第43-45页 |
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