CN107339081A - A kind of system and control method that pit shaft insulation is carried out using mine air-lack waste heat - Google Patents
A kind of system and control method that pit shaft insulation is carried out using mine air-lack waste heat Download PDFInfo
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- CN107339081A CN107339081A CN201710753134.4A CN201710753134A CN107339081A CN 107339081 A CN107339081 A CN 107339081A CN 201710753134 A CN201710753134 A CN 201710753134A CN 107339081 A CN107339081 A CN 107339081A
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- heat pipe
- air
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- heat exchange
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
Abstract
The invention discloses a kind of system that pit shaft insulation is carried out using mine air-lack waste heat, idle air air inducing air channel, air channel valve, idle air filtration system, high temperature section heat exchange of heat pipe, idle air connection air channel, idle air side ice-melt switching air-valve, low-temperature zone heat exchange of heat pipe, idle air wind output channel are sequentially connected, and idle air wind output channel is provided with idle air air-introduced machine；New wind filter, fresh air air blower are sequentially provided with fresh air air inducing air channel, fresh air air inducing air channel, fresh air side ice-melt switching air-valve, low-temperature zone heat exchange of heat pipe, fresh air connection air channel, high temperature section heat exchange of heat pipe, fresh air wind output channel are sequentially connected；Low-temperature zone heat exchange of heat pipe includes a sides low-temperature zone heat exchange of heat pipe and b sides low-temperature zone heat exchange of heat pipe in parallel.Present invention also offers a kind of control method for the system that pit shaft insulation is carried out using mine air-lack waste heat.The present invention is obtained with preferable heat transfer effect in 15 ~ 20 DEG C of heat exchange differences, and in processing idle air side, low temperature ice formation issues are also more convenient.
Description
Technical field
The invention belongs to mine energy conservation technical field, and in particular to a kind of to carry out pit shaft insulation using mine air-lack waste heat
System and control method.
Background technology
Mine shaft is incubated, and is the north ground that mine Winter safety produces indispensable link, especially North of Huai River
Area.
At present, pit shaft insulation is general all provides thermal source using coal-burning boiler.But by national environmental protection policy implication, mine shaft
The small scall coal-fired boiler of insulation configuration, which faces, closes down.Therefore, after coal-burning boiler is closed down, how winter realizes that pit shaft is kept the safety in production,
As northern area colliery technical problem urgently to be resolved hurrily.
In general, if mining area is used for abundant mine water resource, or gas residual heat resources, can be easy to solve
Certainly pit shaft insulation problem, or even whole industrial and mining area heating, bathing heat can be supplied.But for present low gas, few water even nothing
The colliery of mine water, pit shaft insulation take heat certain difficulty to be present.
The colliery of present low gas, few mine water, mine air-lack is unique residual heat resources.It is used for well on extraction idle air waste heat
Cylinder insulation, domestic some mechanisms are researched and developed and studied.It is for example, entitled《Mine ventilation air methane utilization apparatus》Patent (specially
Sharp application number 2008200173439) using spray heat exchange mode, by idle air waste heat recovery to Sprayer Circulation water, then spray and follow
Ring water supply water source heat pump system uses, and produces heating water and supplies pit shaft insulation Huo Gongguang area's heating, bathing；It is entitled《Ore deposit
Well idle air residual heat using device》Patent (number of patent application 2011203916168), air source heat pump evaporator is placed in idle air
In environment, recovery idle air waste heat is evaporated by refrigeration working medium, then source pump output hot water supply pit shaft insulation Huo Gongguang areas
Heating, bathing；Or the two deepening, combination, it is such as entitled《Coal mine ventilation air waste heat mixed type heat-obtaining heat pump system》's
Patent (number of patent application 2013107037587) etc..It is entitled《A kind of device that equipment is realized using return air heat energy》's
Patent (number of patent application 201320398077X), it is to use water as intermediate medium, passes through heat exchanger (undeclared heat-exchanger type
Formula, structure) idle air heat is obtained, then blown in the waste-heat pit shaft for being obtained water by heat exchanger；It is entitled《It is a kind of big
Temperature difference well head heater and its method for operation》Patent (number of patent application 201310600764X) mention using heat dump, preheating
Device (undeclared heat exchanger mechanism, pattern) recovery idle air waste heat is used to preheat pit shaft air-supply.
To sum up, mine air-lack waste heat recovery, two ways be present, one kind is that heat pump takes heat, and hot water preparing is protected for pit shaft
Temperature or industrial and mining area heating, bathing, another kind is to obtain heat by certain heat-exchange working medium, then again by heat exchanger, by working medium
The heat of acquisition is used for pit shaft air-supply heating.
Hot mode is taken for heat pump, heat exchange no matter is sprayed or straight steam exchanges heat, cost height, system complex, energy consumption all be present
The deficiencies of high.Especially spray heat exchange, once idle air temperature is relatively low, just cause to take hot difficulty, and be difficult to obtain 10 DEG C of idle air
The residual heat resources of temperature below section.
Hot mode is taken for heat-exchange working medium, because any heat exchange pattern there must be rational, enough heat transfer temperature differences, otherwise
System will be unable to complete effective conveying of heat, such as rational economic heat exchange difference (the exchanger heat fluid of gas-liquid heat exchange mode
Inlet temperature and cold fluid outlet temperature difference) should be at 15~40 DEG C, gas-evaporation (or condensation) phase-change heat-exchange mode is rational
Economic heat exchange difference should be at 10~20 DEG C.For 15~25 DEG C of mine air-lacks and -20~2 DEG C of pit shaft air intakes (outdoor fresh air),
No matter gas-water heat exchange mode is used, for example, it is entitled《A kind of device that equipment is realized using return air heat energy》Patent
(number of patent application 201320398077X), or gas-evaporation (condensation) phase-change heat-exchange mode is used, for example (,) it is entitled《It is a kind of
Big temperature difference well head heater and its method for operation》Patent (number of patent application 201310600764X), heat exchange difference, hence it is evident that no
It can meet to exchange heat twice, that is practical application has larger difficulty for this.
In addition, taking heat for gas-liquid heat exchange mode or gas-evaporation (or condensation) phase-change heat-exchange mode, mine air-lack
During must condense out a large amount of condensates, once run into less than 0 DEG C, it will on heat exchangers freeze (frost), gently then influence exchange heat
Effect, it is heavy then destroy heat exchanger cause security incident.How to solve these problems current idle air waste heat recovery research in not
Refer to.
The content of the invention
The defects of in order to make up prior art, the present invention is for idle air well, major-minor well colliery closer to the distance, there is provided one
Kind carries out the system and control method of pit shaft insulation using mine air-lack waste heat.
To achieve these goals, the present invention adopts the following technical scheme that.
A kind of system that pit shaft insulation is carried out using mine air-lack waste heat, including idle air air inducing air channel, a crosswind road valve, b
Crosswind road valve, a sides idle air filtration system, b sides idle air filtration system, high temperature section heat exchange of heat pipe, idle air connection air channel, a sides
Idle air side ice-melt switching air-valve, b sides idle air side ice-melt switching air-valve, a sides low-temperature zone heat exchange of heat pipe, b sides low-temperature zone heat pipe change
Hot device, idle air air-introduced machine, idle air wind output channel, fresh air air inducing air channel, fresh air air blower, new wind filter, the fresh air side ice-melt of a sides
Switch air-valve, b sides fresh air side ice-melt switching air-valve, fresh air connection air channel, fresh air wind output channel.
Idle air air inducing air channel connects a crosswind road valve and b crosswind road valve, a crosswind road valve connection a sides idle air mistake respectively
Filter system, b crosswind road valve connection b sides idle air filtration system, a sides idle air filtration system and b sides idle air filtration system are all connected with
The idle air import of high temperature section heat exchange of heat pipe, the idle air outlet connection idle air connection air channel of high temperature section heat exchange of heat pipe, idle air connect
Ventilating duct connects a sides idle air side ice-melt switching air-valve, b sides idle air side ice-melt switching air-valve, a sides idle air side ice-melt switching wind respectively
The idle air import of valve connection a sides low-temperature zone heat exchange of heat pipe, b sides idle air side ice-melt switching air-valve connection b sides low-temperature zone heat pipe change
The idle air import of hot device, the idle air outlet of a sides low-temperature zone heat exchange of heat pipe and the idle air outlet of b sides low-temperature zone heat exchange of heat pipe are equal
Idle air wind output channel is connected, idle air wind output channel is provided with idle air air-introduced machine.
New wind filter, fresh air air blower are sequentially provided with fresh air air inducing air channel, fresh air air inducing air channel is new by a sides respectively
Wind side ice-melt switching air-valve, the fresh inlet of b sides fresh air side ice-melt switching air-valve connection a sides low-temperature zone heat exchange of heat pipe and b sides
The fresh inlet of low-temperature zone heat exchange of heat pipe, the fresh air outlet of a sides low-temperature zone heat exchange of heat pipe and b sides low-temperature zone heat exchange of heat pipe
Fresh air outlet by fresh air connect air channel connect high temperature section heat exchange of heat pipe fresh inlet, high temperature section heat exchange of heat pipe
Fresh air outlet connection fresh air wind output channel.
High temperature section heat pipe heater, including high temperature section heat pipe heater idle air passage and high temperature section heat pipe heater fresh air are led to
Road, high temperature section heat pipe heater idle air passage connect idle air import and the high temperature section heat pipe heat exchanging of high temperature section heat exchange of heat pipe respectively
The idle air outlet of device, the fresh inlet and high temperature section heat of high temperature section heat pipe heater fresh air channel connection high temperature section heat exchange of heat pipe
The fresh air outlet of heat exchange of heat pipe；Provided with the tube bank of at least one set of heat pipe and the combination of draining runner, heat in high temperature section heat pipe heater
Pipe tube bank includes four heat exhausting pipes that fork arrangement is put, and heat pipe includes core pipe and fin, and heat pipe passes through high temperature section heat pipe heater idle air
Passage and high temperature section heat pipe heater fresh air channel.
Further, the heat pipe in high temperature section heat pipe heater idle air passage uses annular fin.
A sides low-temperature zone heat pipe heater, including a sides low-temperature zone heat pipe heater idle air passage and a sides low-temperature zone heat pipe add
Hot device fresh air channel, a sides low-temperature zone heat pipe heater idle air passage connect the idle air import of a sides low-temperature zone heat exchange of heat pipe respectively
Exported with the idle air of a sides low-temperature zone heat exchange of heat pipe, a sides low-temperature zone heat pipe heater fresh air channel connection a sides low-temperature zone heat pipe
The fresh air outlet of the fresh inlet and a sides low-temperature zone heat exchange of heat pipe of heat exchanger；It is provided with least in the low-temperature zone heat pipe heater of a sides
One group of heat pipe tube bank and the combination of draining runner, heat pipe tube bank include four heat exhausting pipes that fork arrangement is put, and heat pipe includes core pipe and rib
Piece, heat pipe pass through a sides low-temperature zone heat pipe heater idle air passage and a sides low-temperature zone heat pipe heater fresh air channel.
B sides low-temperature zone heat pipe heater, including b sides low-temperature zone heat pipe heater idle air passage and b sides low-temperature zone heat pipe add
Hot device fresh air channel, b sides low-temperature zone heat pipe heater idle air passage connect the idle air import of b sides low-temperature zone heat exchange of heat pipe respectively
Exported with the idle air of b sides low-temperature zone heat exchange of heat pipe, b sides low-temperature zone heat pipe heater fresh air channel connection b sides low-temperature zone heat pipe
The fresh air outlet of the fresh inlet and b sides low-temperature zone heat exchange of heat pipe of heat exchanger；It is provided with least in the low-temperature zone heat pipe heater of b sides
One group of heat pipe tube bank and the combination of draining runner, heat pipe tube bank include four heat exhausting pipes that fork arrangement is put, and heat pipe includes core pipe and rib
Piece, heat pipe pass through b sides low-temperature zone heat pipe heater idle air passage and b sides low-temperature zone heat pipe heater fresh air channel.
Further, in a sides low-temperature zone heat pipe heater idle air passage and the low-temperature zone heat pipe heater idle air passage of b sides
Heat pipe uses helical fin, and helical fin root is tied with electrical heating wire.
The combination spacing of the tube bank of every group of heat pipe and draining runner is conveniently manually entered cleaning tube bank in more than 1000mm.
High temperature section heat exchange of heat pipe fresh air exit is provided with high temperature section heat exchange of heat pipe fresh air outlet temperature sensor.
High temperature section heat exchange of heat pipe fresh inlet temperature sensor is provided with high temperature section heat exchange of heat pipe fresh inlet.
High temperature section heat exchange of heat pipe idle air entrance is provided with high temperature section heat exchange of heat pipe idle air inlet temperature sensor.
High temperature section heat exchange of heat pipe idle air exit is provided with high temperature section heat exchange of heat pipe idle air outlet temperature sensor.
A sides low-temperature zone heat exchange of heat pipe fresh inlet TEMP is provided with the low-temperature zone heat exchange of heat pipe fresh inlet of a sides
Device.
A sides low-temperature zone heat exchange of heat pipe fresh air exit senses provided with a sides low-temperature zone heat exchange of heat pipe fresh air outlet temperature
Device.
A sides low-temperature zone heat exchange of heat pipe idle air entrance senses provided with a sides low-temperature zone heat exchange of heat pipe idle air inlet temperature
Device.
A sides low-temperature zone heat exchange of heat pipe idle air exit senses provided with a sides low-temperature zone heat exchange of heat pipe idle air outlet temperature
Device.
B sides low-temperature zone heat exchange of heat pipe fresh inlet TEMP is provided with the low-temperature zone heat exchange of heat pipe fresh inlet of b sides
Device.
B sides low-temperature zone heat exchange of heat pipe fresh air exit senses provided with b sides low-temperature zone heat exchange of heat pipe fresh air outlet temperature
Device.
B sides low-temperature zone heat exchange of heat pipe idle air entrance senses provided with b sides low-temperature zone heat exchange of heat pipe idle air inlet temperature
Device.
B sides low-temperature zone heat exchange of heat pipe idle air exit senses provided with b sides low-temperature zone heat exchange of heat pipe idle air outlet temperature
Device.
Present invention also offers a kind of control method for the system that pit shaft insulation is carried out using mine air-lack waste heat, it is specifically
De-icing method, comprise the following steps.
Hot engineering practice is taken according to idle air, determines the design selection operating mode of low-temperature zone heat exchange of heat pipe, and it is right with this
Low-temperature zone heat exchange of heat pipe type selecting.Design selection operating mode includes：Fresh inlet design value temperatureFresh air exit design takes
It is worth temperatureIdle air inlet design value temperatureIdle air exit design value temperature
The standard θ of low-temperature zone heat exchange of heat pipe is calculated according to following formula0：
And set fiducial value θ1、θ2, take θ1=0.75~0.8 θ0, θ2=0.9 θ0。
During the low-temperature zone heat exchange of heat pipe operation of a sides, the fresh inlet temperature T of detection a sides low-temperature zone heat exchange of heat pipe24-1、
Fresh air outlet temperature T24-2, a sides low-temperature zone heat exchange of heat pipe idle air inlet temperature T25-1, idle air outlet temperature T25-2；Detect fresh air
The running frequency η of air blower.A sides control parameter θ is calculated as followsa：
Similarly, b sides low-temperature zone heat exchange of heat pipe, the fresh inlet temperature T of detection b sides low-temperature zone heat exchange of heat pipe24-1'、
Fresh air outlet temperature T24-2', b sides low-temperature zone heat exchange of heat pipe idle air inlet temperature T25-1', idle air outlet temperature T25-2', obtain b
Side control parameter θb：
Calculate b side control parameter θb：
Work as θa≤θ1, and T25-2Start a side ice-melt measures during 0 DEG C of ＜；Work as θb≤θ1, and T25-2' 0 DEG C of ＜ when start b sides and melt
Ice measure.
A sides, b sides are only unilateral to start ice-melt.
Detect a sides control parameter θa≤θ1, and T25-20 DEG C of ＜, then open the b sides idle air side ice-melt in stand-by state
Switch valve, fresh air side ice-melt switch valve, start b sides low temperature heat pipe heat exchanger, be then shut off a sides fresh air side ice-melt switching valve
Door, idle air side ice-melt switch valve.
After a sides idle air side ice-melt switch valve completely closes, then detect the control parameter θ of b sidesbIf θb＞ θ2, then only
The idle air side ice-melt switch valve of a sides is opened, if θb≤θ2, while the idle air side ice-melt switch valve of a sides is opened, then
Start the electrical heating wire of a sides low temperature heat pipe heat exchanger, implement electrical heating and carry out quickening ice-melt.
In deicing processes, work as T25-2≥T25-1, when, illustrate that deicing processes terminate, electric heater corresponding to closing, close weary
Wind side ice-melt switch valve, fresh air side ice-melt switch valve, a sides low temperature heat pipe heat exchanger are in stand-by state, treat b sides θb≤θ1,
And T25-2' 0 DEG C of ＜, then come into operation.
Present invention also offers a kind of control method for the system that pit shaft insulation is carried out using mine air-lack waste heat, it is specifically
Extreme weather protects control method, comprises the following steps.
High temperature section heat exchange of heat pipe idle air outlet temperature T23-2Less than 3 DEG C, it is considered as extreme weather, carries out high temperature section heat pipe and change
The hot anti-icing protection of device.As 0 DEG C of ＜ T23-2During 3 DEG C of ＜, start the low-temperature zone heat exchange of heat pipe in stand-by state；Work as T23-20 DEG C of ＜
When, start low-temperature zone heat exchange of heat pipe electrical heating supplementary heating；Still T after electrical heating starts23-20 DEG C of ＜ and maintenance long period
When, fresh air air blower running frequency is reduced, fresh air ventilation is reduced, same to alarm (prompting pit shaft freeze injury protection), treats T23-2≥3
After DEG C, then recover fresh air air blower running frequency, and operational mode back to normal.
The invention has the advantages that the system utilizes idle air waste heat, realize that idle air waste heat is directly used in pit shaft insulation, profit
With heat exchange of heat pipe, and by high temperature, low temperature segmented mode, using idle air waste-heat fresh air (pit shaft air-supply), using fresh air,
Idle air temperature detection, judge the ice condition of low-temperature zone heat exchange of heat pipe, and by being carried out without heat exchange ventilation and Electric heating
Ice-melt.The present invention using heat exchange of heat pipe carry out gas-gas heat exchange, by heat pipe core pipe install additional fin measure, 15~20
DEG C heat exchange difference is obtained with preferable heat transfer effect.Heat pipe has good unidirectional heat transmission function, so in processing idle air
Side low temperature ice formation issues are also more convenient.
Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is temperature sensor location structural representation in structure of the present invention.
Fig. 3 is high temperature section heat exchange of heat pipe structural representation of the present invention.
Fig. 4 is low-temperature zone heat exchange of heat pipe structural representation in a sides of the present invention.
Fig. 5 is low-temperature zone heat exchange of heat pipe structural representation in b sides of the present invention.
Fig. 6 is heat pipe tube bank arrangement schematic diagram.
Fig. 7 is the heat pipe structure schematic diagram in high temperature section heat pipe heater idle air passage.
Fig. 8 is the heat pipe structure schematic diagram in low-temperature zone heat pipe heater idle air passage.
In figure, 1, idle air air inducing air channel, 4, high temperature section heat exchange of heat pipe, 5, idle air connection air channel, 8, idle air air-introduced machine, 9,
Idle air wind output channel, 10, fresh air air inducing air channel, 11, new wind filter, 12, fresh air air blower, 14, fresh air connection air channel, 15,
Fresh air wind output channel, 17, draining runner, 18, heat pipe, 19, core pipe, 20, electrical heating wire.
Wherein, 2-a is a crosswind road valve, and 2-b is b crosswind road valve, and 3-a is a sides idle air filtration system, 3-b is b sides
Idle air filtration system, 6-1 are that the ice-melt of a sides idle air side switches air-valve, and 6-2 is that the ice-melt of b sides idle air side switches air-valve, and 7-1 is that a sides are low
Temperature section heat exchange of heat pipe, 7-2 are b sides low-temperature zone heat exchange of heat pipe, and 13-1 is that the ice-melt of a sides fresh air side switches air-valve, and 13-2 is b sides
Fresh air side ice-melt switching air-valve, 16-1 are that the heat pipe of high temperature section heat exchange of heat pipe is restrained, and 16-2 is low-temperature zone heat exchange of heat pipe
Heat pipe is restrained, and 21-1 is annular fin, and 21-2 is helical fin, and 22-1 passes for high temperature section heat exchange of heat pipe fresh air outlet temperature
Sensor, 22-2 are high temperature section heat exchange of heat pipe fresh inlet temperature sensor；23-1 is high temperature section heat exchange of heat pipe idle air import
Temperature sensor, 23-2 are high temperature section heat exchange of heat pipe idle air outlet temperature sensor；24-1 is a sides low-temperature zone heat exchange of heat pipe
Fresh inlet temperature sensor, 24-2 are a sides low-temperature zone heat exchange of heat pipe fresh air outlet temperature sensor；25-1 is a sides low temperature
Section heat exchange of heat pipe idle air inlet temperature sensor, 25-2 is a sides low-temperature zone heat exchange of heat pipe idle air outlet temperature sensor；
24-1 ' is b sides low-temperature zone heat exchange of heat pipe fresh inlet temperature sensor, and 24-2 ' is that b sides low-temperature zone heat exchange of heat pipe fresh air goes out
Mouth temperature sensor；25-1 ' is b sides low-temperature zone heat exchange of heat pipe idle air inlet temperature sensor, and 25-2 ' is b sides low-temperature zone heat
Heat exchange of heat pipe idle air outlet temperature sensor.
Embodiment
As Figure 1-Figure 8, a kind of system that pit shaft insulation is carried out using mine air-lack waste heat, including idle air air inducing air channel
1st, a crosswind road valve 2-a, b crosswind road valve 2-b, a sides idle air filtration system 3-a, b side idle air filtration system 3-b, high temperature section
Heat exchange of heat pipe 4, idle air connection air channel 5, a sides idle air side ice-melt switching air-valve 6-1, b sides idle air side ice-melt switching air-valve 6-2, a
Side low-temperature zone heat exchange of heat pipe 7-1, b sides low-temperature zone heat exchange of heat pipe 7-2, idle air air-introduced machine 8, idle air wind output channel 9, fresh air are drawn
Wind air channel 10, fresh air air blower 12, new wind filter 11, a sides fresh air side ice-melt switching air-valve 13-1, b side fresh air side ice-melts are cut
Change air-valve 13-2, fresh air connection air channel 14, fresh air wind output channel 15.
Idle air air inducing air channel 1 connects a crosswind road valve 2-a and b crosswind road valve 2-b respectively, and a crosswind road valve 2-a connects
Meet a sides idle air filtration system 3-a, b crosswind road valve 2-b connection b sides idle air filtration system 3-b, a sides idle air filtration system 3-a
The idle air import of high temperature section heat exchange of heat pipe 4, the idle air of high temperature section heat exchange of heat pipe 4 are all connected with b sides idle air filtration system 3-b
Outlet connection idle air connection air channel 5, idle air connection air channel 5 connect a sides idle air side ice-melt switching air-valve 6-1, b sides idle air side respectively
Ice-melt switching air-valve 6-2, a sides idle air side ice-melt switching air-valve 6-1 connection a side low-temperature zone heat exchange of heat pipe 7-1 idle air import,
B sides idle air side ice-melt switching air-valve 6-2 connection b side low-temperature zone heat exchange of heat pipe 7-2 idle air import, a sides low-temperature zone heat pipe change
Hot device 7-1 idle air outlet and b sides low-temperature zone heat exchange of heat pipe 7-2 idle air outlet are all connected with idle air wind output channel 9, idle air row
Wind air channel 9 is provided with idle air air-introduced machine 8.
New wind filter 11, fresh air air blower 12 are sequentially provided with fresh air air inducing air channel 10, fresh air air inducing air channel 10 is distinguished
The ice-melt of air-valve 13-a, b sides fresh air side is switched by the ice-melt of a sides fresh air side and switches air-valve 13-b connection a sides low-temperature zone heat pipe heat exchanging
Device 7-1 fresh inlet and b sides low-temperature zone heat exchange of heat pipe 7-2 fresh inlet, a sides low-temperature zone heat exchange of heat pipe 7-1's is new
Wind outlet connects the connection high temperature section heat pipe of air channel 14 by fresh air with b sides low-temperature zone heat exchange of heat pipe 7-2 fresh air outlet and changed
The fresh inlet of hot device 4, the fresh air outlet connection fresh air wind output channel 15 of high temperature section heat exchange of heat pipe 4.
High temperature section heat pipe heater 4, including high temperature section heat pipe heater idle air passage and high temperature section heat pipe heater fresh air
Passage, high temperature section heat pipe heater idle air passage connects the idle air import of high temperature section heat exchange of heat pipe respectively and high temperature section heat pipe changes
The idle air outlet of hot device, high temperature section heat pipe heater fresh air channel connect the fresh inlet and high temperature section of high temperature section heat exchange of heat pipe
The fresh air outlet of heat exchange of heat pipe；At least one set of heat pipe tube bank 16-1 and draining runner 17 are provided with high temperature section heat pipe heater 4
Combination, heat pipe tube bank 16-1 includes four heat exhausting pipes 18 put of fork arrangement, and heat pipe 18 includes core pipe 19 and fin, and heat pipe 18 passes through
High temperature section heat pipe heater idle air passage and high temperature section heat pipe heater fresh air channel, in high temperature section heat pipe heater idle air passage
Heat pipe use annular fin 21-1.
A sides low-temperature zone heat pipe heater 7-1, including a sides low-temperature zone heat pipe heater idle air passage and a sides low-temperature zone heat pipe
Heater fresh air channel, the idle air that a sides low-temperature zone heat pipe heater idle air passage connects a sides low-temperature zone heat exchange of heat pipe respectively enter
The idle air of mouth and a sides low-temperature zone heat exchange of heat pipe exports, a sides low-temperature zone heat pipe heater fresh air channel connection a sides low-temperature zone heat
The fresh air outlet of the fresh inlet and a sides low-temperature zone heat exchange of heat pipe of heat exchange of heat pipe；It is provided with extremely in the low-temperature zone heat pipe heater of a sides
Few one group of heat pipe tube bank 16-2 and draining runner 17 combination, heat pipe tube bank 16-2 include four heat exhausting pipes 18 that fork arrangement is put, heat
Pipe 18 includes core pipe 19 and fin, and heat pipe 18 passes through a sides low-temperature zone heat pipe heater idle air passage and a sides low-temperature zone heat pipes heat
Device fresh air channel, the heat pipe in the low-temperature zone heat pipe heater idle air passage of a sides use helical fin 21-2, and helical rib
Piece root is tied with electrical heating wire 20.
B sides low-temperature zone heat pipe heater 7-2 is identical with a sides low-temperature zone heat pipe heater 7-1 structure, b sides low-temperature zone heat
Pipe heater 7-2, including b sides low-temperature zone heat pipe heater idle air passage and b sides low-temperature zone heat pipe heater fresh air channel, b sides
Low-temperature zone heat pipe heater idle air passage connects idle air import and the b sides low-temperature zone heat pipe of b sides low-temperature zone heat exchange of heat pipe respectively
The idle air outlet of heat exchanger, the fresh inlet of b sides low-temperature zone heat pipe heater fresh air channel connection b sides low-temperature zone heat exchange of heat pipe
Exported with the fresh air of b sides low-temperature zone heat exchange of heat pipe；At least one set of heat pipe tube bank 16-2 is provided with the low-temperature zone heat pipe heater of b sides
And the combination of draining runner 17, heat pipe tube bank 16-2 include four heat exhausting pipes 18 that fork arrangement is put, heat pipe 18 includes core pipe 19 and rib
Piece, heat pipe 18 pass through b sides low-temperature zone heat pipe heater idle air passage and b sides low-temperature zone heat pipe heater fresh air channel, b sides low temperature
Heat pipe in section heat pipe heater idle air passage uses helical fin 21-2, and helical fin root is tied with electrical heating wire
20。
High temperature section heat exchange of heat pipe fresh air exit is provided with high temperature section heat exchange of heat pipe fresh air outlet temperature sensor 22-1.
High temperature section heat exchange of heat pipe fresh inlet temperature sensor 22-2 is provided with high temperature section heat exchange of heat pipe fresh inlet.
High temperature section heat exchange of heat pipe idle air entrance is provided with high temperature section heat exchange of heat pipe idle air inlet temperature sensor 23-1.
High temperature section heat exchange of heat pipe idle air exit is provided with high temperature section heat exchange of heat pipe idle air outlet temperature sensor 23-2.
A sides low-temperature zone heat exchange of heat pipe fresh inlet TEMP is provided with the low-temperature zone heat exchange of heat pipe fresh inlet of a sides
Device 24-1.
A sides low-temperature zone heat exchange of heat pipe fresh air exit senses provided with a sides low-temperature zone heat exchange of heat pipe fresh air outlet temperature
Device 24-2.
A sides low-temperature zone heat exchange of heat pipe idle air entrance senses provided with a sides low-temperature zone heat exchange of heat pipe idle air inlet temperature
Device 25-1.
A sides low-temperature zone heat exchange of heat pipe idle air exit senses provided with a sides low-temperature zone heat exchange of heat pipe idle air outlet temperature
Device 25-2.
B sides low-temperature zone heat exchange of heat pipe fresh inlet TEMP is provided with the low-temperature zone heat exchange of heat pipe fresh inlet of b sides
Device 24-1 '.
B sides low-temperature zone heat exchange of heat pipe fresh air exit senses provided with b sides low-temperature zone heat exchange of heat pipe fresh air outlet temperature
Device 24-2 '.
B sides low-temperature zone heat exchange of heat pipe idle air entrance senses provided with b sides low-temperature zone heat exchange of heat pipe idle air inlet temperature
Device 25-1 '.
B sides low-temperature zone heat exchange of heat pipe idle air exit senses provided with b sides low-temperature zone heat exchange of heat pipe idle air outlet temperature
Device 25-2 '.
High temperature section heat exchange of heat pipe 4 and low-temperature zone heat exchange of heat pipe are arranged vertically, epimere circulation fresh air, and hypomere circulation is weary
Wind, wherein, lower end is a sides, and upper end is b sides.
Below in conjunction with the accompanying drawings, preferred embodiment is illustrated.
Start idle air air-introduced machine 8 and fresh air air blower 12, idle air, fresh air circulate in system.
Wherein, idle air flow：By idle air air inducing air channel 1 through air channel air-valve, into idle air filtration system, cleaning is realized.So
Afterwards, the idle air of cleaning enters the hypomere of high temperature section heat exchange of heat pipe 4, by heat exchange of heat pipe, transfers heat to high temperature section heat pipe
The fresh air of the epimere of heat exchanger 4.After idle air leaves high temperature section heat exchange of heat pipe 4, air channel 5 is connected into idle air, is cut through idle air ice-melt
Change air-valve and enter low-temperature zone heat exchange of heat pipe hypomere, in low-temperature zone heat exchange of heat pipe, by heat exchange of heat pipe by heat transfer
Fresh air to epimere.After leaving low-temperature zone heat exchange of heat pipe, idle air is by the discharge system of idle air air-introduced machine 8.
Fresh air flow：Fresh air is by fresh air air inducing air channel 10, new wind filter 11, through fresh-air fan 12, the ice-melt of fresh air side
Switching valve enters low-temperature zone heat exchange of heat pipe epimere.Then, fresh air receives the thermal temperature liter come from heat exchange of heat pipe transmission
Height, air channel 14 is connected subsequently into fresh air, the epimere of high temperature section heat exchange of heat pipe 4 is again introduced into, continues to be heated.Leave high temperature
After section heat exchange of heat pipe 4, fresh air leads to pit shaft through fresh air wind output channel 15.
Because idle air dust-laden is aqueous, to prevent the dirty stifled influence heat exchange efficiency of heat exchange of heat pipe, match somebody with somebody on idle air air inducing air channel 1
Two sets of idle air filtration systems have been put, the using and the reserved, have been switched over by air channel valve.
Ice formation issues are must take into consideration as 5 DEG C of idle air temperature ＜.So idle air is taken heat to be divided into both ends by the present invention：High temperature section
And low-temperature zone, wherein high temperature section extraction idle air >=5 DEG C heat energy, low-temperature zone extract idle air 5 DEG C of heat energy of ＜.In order to ensure that pit shaft is incubated
Contact is stable, and the low-temperature zones of ice formation issues being present, also the using and the reserved mode configures, and facilitates ice-melt to operate.
System work process control method is as follows：
Start idle air air-introduced machine 8 and fresh air air blower 12, idle air, fresh air is circulated in system.
Pit shaft wind pushing temperature controls：Because idle air temperature is highly stable, new air temperature fluctuates with Changes in weather, is ensuring well
Under the premise of the stabilization of cylinder wind pushing temperature, in order to save energy consumption as far as possible, fresh air air blower 12 uses conversion system, is sent by regulation
Enter the new wind flow of pit shaft heat, pit shaft air intake and pit shaft room stabilization are being required into temperature.
Ice-melt detection process：
An example is set forth below, further illustrates the de-icing method of the present invention.
The design selection operating mode of low-temperature zone heat exchange of heat pipe：- 20 DEG C of fresh inlet design value temperature, fresh air outlet are set
Count -5 DEG C of value temperature, 5 DEG C of idle air inlet design value temperature, -6 DEG C of idle air exit design value temperature.
The standard θ of low-temperature zone heat exchange of heat pipe is calculated according to following formula0：
Set fiducial value θ1、θ2, take θ1=0.8 θ0=0.8 × 1.2618=1.0094, θ2=0.9 θ0=0.9 × 1.2618
=1.1356.
A sides, b sides are only unilateral to start ice-melt；It is assumed that current, the operation of a sides, b sides are in stand-by state.Detect a sides low-temperature zone
- 13 DEG C of fresh inlet temperature, -4 DEG C of the fresh air outlet temperature of heat exchange of heat pipe, the low-temperature zone heat exchange of heat pipe idle air import of a sides
4 DEG C of temperature, -2.4 DEG C of idle air outlet temperature；Detect the running frequency 45Hz of fresh air air blower.A sides control parameter θa：
A sides control parameter θa=0.9347≤θ1=1.0094, and T25-22.4 DEG C≤0 DEG C of=﹣, so a sides need to start
Ice-melt.B side idle air side ice-melts switch valve, fresh air side ice-melt switch valve are now opened, starts b sides low-temperature zone heat pipe heat exchanging
Device, it is then shut off a sides fresh air side ice-melt switch valve, idle air side ice-melt switch valve.B sides low-temperature zone heat exchange of heat pipe opens completely
After dynamic and stable, detect -13 DEG C of the fresh inlet temperature of b sides low-temperature zone heat exchange of heat pipe, fresh air outlet temperature -
3.5 DEG C, 4 DEG C of b sides low-temperature zone heat exchange of heat pipe idle air inlet temperature, -2.8 DEG C of idle air outlet temperature, the operation of fresh air air blower
Frequency is still 45Hz.It can thus be concluded that b sides control parameter θb：
B sides control parameter θb=1.0382≤θ2=1.1356, so needing to accelerate ice-melt during the ice-melt of a sides：It is low to open a sides
Heat exchange of heat pipe idle air side ice-melt switch valve is warmed, while starts the electrical heating of a sides, starts ice-melt.
4.1 DEG C of the idle air outlet temperature of a sides is detected in deicing processes, 4 DEG C of idle air inlet temperature, meets T25-2≥T25-1,
Illustrate that the ice-melt of a sides terminates.A side idle air side ice-melt switch valves and electrical heating are now closed, a sides low temperature heat pipe heat exchanger is in standby
With state, come into operation again when b sides need ice-melt.
Extreme weather protection control：The idle air outlet temperature T of high temperature section heat exchange of heat pipe 423-2(corresponding high temperature section heat pipe heat exchanging
Device idle air outlet temperature sensor 23-2) it is less than 3 DEG C, it is considered as extreme weather, 4 anti-icing guarantor of high temperature section heat exchange of heat pipe should be carried out
Shield.As 0 DEG C of ＜ T23-2During 3 DEG C of ＜, come into operation the low-temperature zone heat exchange of heat pipe in stand-by state；Work as T23-2During 0 DEG C of ＜, start low
Temperature section heat exchange of heat pipe electrical heating supplementary heating；Still T after electrical heating starts23-20 DEG C of ＜ and when maintaining the long period, it is appropriate to reduce
Fresh air air blower running frequency, fresh air ventilation is reduced, same to alarm (prompting pit shaft freeze injury protection), treats T23-2After >=3 DEG C, then
Recover fresh air air blower running frequency.
The present invention is not limited to the above-described embodiments, anyone should learn the present invention enlightenment under make with the present invention
With same or like technical scheme, each fall within protection scope of the present invention.
The present invention be not described in detail technology, shape, construction part be known technology.
Claims (8)
1. a kind of system that pit shaft insulation is carried out using mine air-lack waste heat, it is characterized in that, including idle air air inducing air channel, a crosswind
Road valve, b crosswind road valve, a sides idle air filtration system, b sides idle air filtration system, high temperature section heat exchange of heat pipe, idle air connection
Air channel, a sides idle air side ice-melt switching air-valve, b sides idle air side ice-melt switching air-valve, a sides low-temperature zone heat exchange of heat pipe, b sides low temperature
Section heat exchange of heat pipe, idle air air-introduced machine, idle air wind output channel, fresh air air inducing air channel, fresh air air blower, new wind filter, a sides are new
Wind side ice-melt switching air-valve, b sides fresh air side ice-melt switching air-valve, fresh air connection air channel, fresh air wind output channel；
Idle air air inducing air channel connects a crosswind road valve and b crosswind road valve, a crosswind road valve connection a sides idle air filtering system respectively
System, b crosswind road valve connection b sides idle air filtration system, a sides idle air filtration system and b sides idle air filtration system are all connected with high temperature
The idle air import of section heat exchange of heat pipe, the idle air outlet connection idle air connection air channel of high temperature section heat exchange of heat pipe, idle air connection wind
Road connects a sides idle air side ice-melt switching air-valve, b sides idle air side ice-melt switching air-valve respectively, and ice-melt switching air-valve in a sides idle air side connects
Connect the idle air import of a sides low-temperature zone heat exchange of heat pipe, b sides idle air side ice-melt switching air-valve connection b sides low-temperature zone heat exchange of heat pipe
Idle air import, a sides low-temperature zone heat exchange of heat pipe idle air outlet and b sides low-temperature zone heat exchange of heat pipe idle air outlet is all connected with
Idle air wind output channel, idle air wind output channel are provided with idle air air-introduced machine；
New wind filter, fresh air air blower are sequentially provided with fresh air air inducing air channel, fresh air air inducing air channel passes through a sides fresh air side respectively
The fresh inlet and b sides low temperature of ice-melt switching air-valve, b sides fresh air side ice-melt switching air-valve connection a sides low-temperature zone heat exchange of heat pipe
Section heat exchange of heat pipe fresh inlet, a sides low-temperature zone heat exchange of heat pipe fresh air outlet and b sides low-temperature zone heat exchange of heat pipe it is new
Wind outlet connects the fresh inlet of air channel connection high temperature section heat exchange of heat pipe, the fresh air of high temperature section heat exchange of heat pipe by fresh air
Outlet connection fresh air wind output channel；
High temperature section heat pipe heater, including high temperature section heat pipe heater idle air passage and high temperature section heat pipe heater fresh air channel,
High temperature section heat pipe heater idle air passage connects idle air import and the high temperature section heat exchange of heat pipe of high temperature section heat exchange of heat pipe respectively
Idle air outlet, high temperature section heat pipe heater fresh air channel connect high temperature section heat exchange of heat pipe fresh inlet and high temperature section heat pipe
The fresh air outlet of heat exchanger；Provided with the tube bank of at least one set of heat pipe and the combination of draining runner, heat pipe in high temperature section heat pipe heater
Tube bank includes four heat exhausting pipes that fork arrangement is put, and heat pipe includes core pipe and fin, and heat pipe leads to through high temperature section heat pipe heater idle air
Road and high temperature section heat pipe heater fresh air channel；
A sides low-temperature zone heat pipe heater, including a sides low-temperature zone heat pipe heater idle air passage and a sides low-temperature zone heat pipe heater
Fresh air channel, a sides low-temperature zone heat pipe heater idle air passage connect idle air import and a of a sides low-temperature zone heat exchange of heat pipe respectively
The idle air outlet of side low-temperature zone heat exchange of heat pipe, a sides low-temperature zone heat pipe heater fresh air channel connection a sides low-temperature zone heat pipe heat exchanging
The fresh air outlet of the fresh inlet and a sides low-temperature zone heat exchange of heat pipe of device；At least one set is provided with the low-temperature zone heat pipe heater of a sides
Heat pipe is restrained and the combination of draining runner, and heat pipe tube bank includes four heat exhausting pipes that fork arrangement is put, and heat pipe includes core pipe and fin, heat
Pipe is through a sides low-temperature zone heat pipe heater idle air passage and a sides low-temperature zone heat pipe heater fresh air channel；
B sides low-temperature zone heat pipe heater, including b sides low-temperature zone heat pipe heater idle air passage and b sides low-temperature zone heat pipe heater
Fresh air channel, b sides low-temperature zone heat pipe heater idle air passage connect idle air import and the b of b sides low-temperature zone heat exchange of heat pipe respectively
The idle air outlet of side low-temperature zone heat exchange of heat pipe, b sides low-temperature zone heat pipe heater fresh air channel connection b sides low-temperature zone heat pipe heat exchanging
The fresh air outlet of the fresh inlet and b sides low-temperature zone heat exchange of heat pipe of device；At least one set is provided with the low-temperature zone heat pipe heater of b sides
Heat pipe is restrained and the combination of draining runner, and heat pipe tube bank includes four heat exhausting pipes that fork arrangement is put, and heat pipe includes core pipe and fin, heat
Pipe is through b sides low-temperature zone heat pipe heater idle air passage and b sides low-temperature zone heat pipe heater fresh air channel.
2. the system as claimed in claim 1 that pit shaft insulation is carried out using mine air-lack waste heat, it is characterized in that, high temperature section heat pipe
Heat pipe in heater idle air passage uses annular fin.
3. the system as claimed in claim 1 that pit shaft insulation is carried out using mine air-lack waste heat, it is characterized in that, a sides low-temperature zone
Heat pipe in heat pipe heater idle air passage with b sides low-temperature zone heat pipe heater idle air passage uses helical fin, and spiral shell
Rotation shape fin root is tied with electrical heating wire.
4. the system as claimed in claim 1 that pit shaft insulation is carried out using mine air-lack waste heat, it is characterized in that, every group of heating pipe
The combination spacing of beam and draining runner is conveniently manually entered cleaning tube bank in more than 1000mm.
5. the system as claimed in claim 1 that pit shaft insulation is carried out using mine air-lack waste heat, it is characterized in that, high temperature section heat pipe
Heat exchanger fresh air exit is provided with high temperature section heat exchange of heat pipe fresh air outlet temperature sensor；High temperature section heat exchange of heat pipe fresh air is entered
High temperature section heat exchange of heat pipe fresh inlet temperature sensor is provided with mouthful；High temperature section heat exchange of heat pipe idle air entrance is provided with high temperature
Section heat exchange of heat pipe idle air inlet temperature sensor；High temperature section heat exchange of heat pipe idle air exit is provided with high temperature section heat exchange of heat pipe
Idle air outlet temperature sensor.
6. the system as claimed in claim 1 that pit shaft insulation is carried out using mine air-lack waste heat, it is characterized in that, a sides low-temperature zone
A sides low-temperature zone heat exchange of heat pipe fresh inlet temperature sensor is provided with heat exchange of heat pipe fresh inlet；A sides low-temperature zone heat pipe changes
Hot device fresh air exit is provided with a sides low-temperature zone heat exchange of heat pipe fresh air outlet temperature sensor；A sides low-temperature zone heat exchange of heat pipe is weary
A sides low-temperature zone heat exchange of heat pipe idle air inlet temperature sensor is provided with wind inlet；The low-temperature zone heat exchange of heat pipe idle air outlet of a sides
Place is provided with a sides low-temperature zone heat exchange of heat pipe idle air outlet temperature sensor；It is provided with the low-temperature zone heat exchange of heat pipe fresh inlet of b sides
B sides low-temperature zone heat exchange of heat pipe fresh inlet temperature sensor；It is low that b sides low-temperature zone heat exchange of heat pipe fresh air exit is provided with b sides
Temperature section heat exchange of heat pipe fresh air outlet temperature sensor；B sides low-temperature zone heat exchange of heat pipe idle air entrance is provided with b sides low-temperature zone heat
Heat exchange of heat pipe idle air inlet temperature sensor；B sides low-temperature zone heat exchange of heat pipe idle air exit is provided with b sides low-temperature zone heat pipe heat exchanging
Device idle air outlet temperature sensor.
7. a kind of control method for the system that pit shaft insulation is carried out using mine air-lack waste heat, it is characterized in that, comprise the following steps：
1) according to the design selection operating mode of low-temperature zone heat exchange of heat pipe：Fresh inlet design value temperatureFresh air exit design
Value temperatureIdle air inlet design value temperatureIdle air exit design value temperatureCalculate low-temperature zone heat pipe
The standard θ of heat exchanger0：
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2) fiducial value θ is set1、θ2, take θ1=0.75~0.8 θ0, θ2=0.9 θ0；
3) when low-temperature zone heat exchange of heat pipe in a sides is run, the fresh inlet temperature T of detection a sides low-temperature zone heat exchange of heat pipe24-1, fresh air
Outlet temperature T24-2, a sides low-temperature zone heat exchange of heat pipe idle air inlet temperature T25-1, idle air outlet temperature T25-2, fresh air air blower
Running frequency η, a sides control parameter θ is calculated as followsa：
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4) when low-temperature zone heat exchange of heat pipe in b sides is run, the fresh inlet temperature T of detection b sides low-temperature zone heat exchange of heat pipe24-1', it is new
Wind outlet temperature T24-2', b sides low-temperature zone heat exchange of heat pipe idle air inlet temperature T25-1', idle air outlet temperature T25-2', fresh air drum
The running frequency η of blower fan, calculate b side control parameter θb：
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5) θ is worked asa≤θ1, and T25-2During 0 DEG C of ＜, start a side ice-melt measures；Work as θb≤θ1, and T25-2' 0 DEG C of ＜ when, start b sides and melt
Ice measure；
6) a sides control parameter θ is detecteda≤θ1, and T25-20 DEG C of ＜, then open the b sides idle air side ice-melt in stand-by state and cut
Valve, fresh air side ice-melt switch valve are changed, starts b sides low temperature heat pipe heat exchanger, is then shut off a sides fresh air side ice-melt switching valve
Door, idle air side ice-melt switch valve；
7) after a sides idle air side ice-melt switch valve completely closes, then the control parameter θ of b sides is detectedbIf θb＞ θ2, then only open
The idle air side ice-melt switch valve of a sides is opened, if θb≤θ2, while the idle air side ice-melt switch valve of a sides is opened, then open
The electrical heating wire of dynamic a sides low temperature heat pipe heat exchanger, implement electrical heating and carry out quickening ice-melt；
8) in deicing processes, T is worked as25-2≥T25-1, when, illustrate that deicing processes terminate, electric heater corresponding to closing, close idle air
Side ice-melt switch valve, fresh air side ice-melt switch valve, a sides low temperature heat pipe heat exchanger are in stand-by state, treat b sides θb≤θ1, and
T25-2' 0 DEG C of ＜, then come into operation.
8. a kind of control method for the system that pit shaft insulation is carried out using mine air-lack waste heat, it is characterized in that, comprise the following steps：
High temperature section heat exchange of heat pipe idle air outlet temperature T23-2Less than 3 DEG C, it is considered as extreme weather, it is anti-icing carries out high temperature section heat exchange of heat pipe
Protection；As 0 DEG C of ＜ T23-2During 3 DEG C of ＜, come into operation the low-temperature zone heat exchange of heat pipe in stand-by state；Work as T23-2During 0 DEG C of ＜, start
Low-temperature zone heat exchange of heat pipe electrical heating supplementary heating；Still T after electrical heating starts23-20 DEG C of ＜ and when maintaining the long period, is reduced new
Wind air blower running frequency, fresh air ventilation is reduced, and the freeze injury of alarm pit shaft is protected, and treats T23-2After >=3 DEG C, then recover new
Wind air blower running frequency.
Priority Applications (1)
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| CN107763789A (en) * | 2017-11-17 | 2018-03-06 | 四川大学 | Total heat exchange VMC |
| CN107837629A (en) * | 2017-12-12 | 2018-03-27 | 山东宜美科节能服务有限责任公司 | Low idle air temperature mine air-lack waste heat extraction system |
| CN107965947A (en) * | 2017-12-25 | 2018-04-27 | 北京中矿博能节能科技有限公司 | Direct-cooling type depth enthalpy takes hot idle air heat producing box |
| CN110593938A (en) * | 2019-10-11 | 2019-12-20 | 中国矿业大学 | Mine exhaust waste heat utilization device and method |
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