CN207527875U - The system that a kind of return air residual heat in mine directly recycles - Google Patents
The system that a kind of return air residual heat in mine directly recycles Download PDFInfo
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- CN207527875U CN207527875U CN201721389716.0U CN201721389716U CN207527875U CN 207527875 U CN207527875 U CN 207527875U CN 201721389716 U CN201721389716 U CN 201721389716U CN 207527875 U CN207527875 U CN 207527875U
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Abstract
The utility model is related to the systems that a kind of return air residual heat in mine directly recycles, including return air pit shaft, Intake shaft, deflector, heat exchange mechanisms and stored energy mechanism, deflector, heat exchange mechanisms and stored energy mechanism are disposed between the return air pit shaft and Intake shaft.The ventilation resistance of mine main fan is not increased, low energy consumption, and the thermal efficiency is high, and low cost can save mass energy, and operating cost is low, environmentally friendly, can effectively reduce the pollution to environment, and the economic benefit and social benefit promoted the use of are all extremely prominent.
Description
Technical field
The utility model is related to air and air recuperation of heat heat transfer technology, especially a kind of return air residual heat in mine directly recycles
The system utilized.
Background technology
Coal mine is a huge heat storage, contains abundant geothermal energy resources.Into coal mine air constantly with the lane of coal mine
Road, electromechanical equipment, water drenching etc. carry out heat exchange, and finally, the ground temperature of air themperature and coal mine reaches balance.The ground temperature of coal mine is basic
It is constant, cause the annual temperature substantially constant of coal mine return air, influenced very little by outside air temperature.Another side underground electromechanical equipment dissipates
Hot (the 20% of general electromechanical equipment power), coal dust oxidizing heat evolution, underground water-cooled, personnel's heat dissipation etc. enter mine return air
In.So coal mine return air is a kind of more good residual heat resources of stabilization.Winter mine return air temperature is 18 DEG C or so.
Conventional at present is that the heat of mine return air is extracted with reference to heat pump techniques using technology, from the evaporator of heat pump unit
About 4 DEG C or so entering in return air heat exchanger into return air heat exchange retention tower of water outlet, form mist in return air heat exchanger
Water droplet and 18 DEG C or so of mine return air carry out heat exchange, and water temperature is increased to 12~15 DEG C, and the water part after heat exchange is freely fallen
Body enters lower part catchment tray, and another part forms flow freely falling body after water fender and flows into catchment tray, and the water in catchment tray leads to
It crosses ditch and enters heat exchange cycle pond, evaporator is sent by the water circulating pump in heat exchange cycle pond, complete one and completely return
The cycle of wind heat exchange side.Heat pump unit will be heated by driven compressor after the Energy extraction of evaporation side, the confession water temperature of condensation side
Spend is 45~60 DEG C.Technology path system complex investment is high, and system needs to consume the electricity for being equivalent to heat capacity 1/4~1/3
Can, operating cost is high, and in cold or severe cold area, since system needs water cycle to carry thermal energy, often due to system water
Stream pause or flow do not cause freely system pipeline, equipment icing bursting by freezing pipe-line equipment that equipment effect is caused to cannot be guaranteed.
Coal mine ventilation air waste heat mixed type heat-obtaining heat pump system disclosed in State Intellectual Property Office (CN201310703758.7),
Using evaporator direct-expansion-type heat pump extraction return air thermal energy, condensation side use water circulation heating, equally with system complex,
The problems such as condensation side frozen pipe, operating cost are high, evaporation side dust stratification is serious and windage is big.
A kind of weary wind source heat pump equipment system based on heat pipe heat exchanging disclosed in State Intellectual Property Office
(CN201710319043.X), the thermal energy that return air is extracted using evaporator direct-expansion-type heat pump is combined using heat pipe heat exchanging, it is real
It finds largely to cause dust stratification serious using finned tube because of return air heat exchange side in the project of border, ventilation resistance is big, and heat pump supplement heat exchange is steamed
It is serious to send out the low frosting of temperature, since heat pipe heat exchanging is required to certain heat transfer temperature difference in heat absorbing side and cold side, heat transfer efficiency compared with
It is low.
The heat supply of coal mining enterprise has the characteristics that itself, and the antifreeze load of pitshaft typically constitutes from total mine thermic load 40%-
60%, the duration of equipment peak load is short, generally equipment occurs at 8 points to morning in extreme weather 3:00 AM
Peak load.Current designing scheme is generally the configuration of increasing system heat capacity, is born with meeting extreme weather equipment
The demand of lotus.
In view of this, the utility model people is for existing Project design and actual motion using mine return air heating
The problem of have made intensive studies and test, thus this programme generates.
Invention content
In order to which existing return air residual heat is overcome to utilize, the investment of system is big, operating cost is high, heat exchange efficiency is low, heat exchanger table
Area ash is serious and is difficult to clear up, the problems such as equipment effect stability is poor, and the utility model is provided more than a kind of mine return air
The system that heat directly recycles.It realizes efficient stable and the direct of low operating cost utilizes return air residual heat in mine to prevent for pit shaft
Freeze, while thermal storage and energy accumulation measure, the wellhead anti-freezing effect being further ensured that under extreme weather are combined under extreme weather.This practicality
The system that a kind of novel return air residual heat in mine of offer directly recycles, the technical solution of the utility model are：
The system that a kind of return air residual heat in mine directly recycles including return air pit shaft, Intake shaft, deflector, is changed
Heat engine structure and stored energy mechanism are disposed with deflector, heat exchange mechanisms and storage between the return air pit shaft and Intake shaft
It can mechanism.
The deflector includes ground return airway, return air diffuser and return air and introduces air duct, the ground return air
The one end in air duct is connected with return air pit shaft, and the other end is connected with the air inlet of return air diffuser, and the first of the return air diffuser goes out
The air inlet that air port introduces air duct with return air connects, and the return air introduces the air outlet access heat exchange mechanisms in air duct, which expands
The second air outlet for dissipating device is communicated with the external world；Main fan is installed in the ground return airway, return air introduces air duct
Return air is inside installed and introduces air-valve.
The heat exchange mechanisms include heat-exchange unit, return air fan, fresh air press-in air duct, fresh air submitting main air duct and fresh air
Other air duct is sent out, dividing wall type heat exchanger is provided in the heat-exchange unit, which is shell-tube type, wall-type heat exchange
Device tube side inlet communication return air introduces air duct, and the tube side of the dividing wall type heat exchanger exports the configured return air wind on heat-exchange unit
Machine is in communication with the outside, and the shell side inlet communication fresh air press-in air duct of the dividing wall type heat exchanger, the shell side of dividing wall type heat exchanger goes out
Mouth connection fresh air sends out one end of main air duct, and the other end which sends out main air duct is connected with air-supply pit shaft；It is sent in the fresh air
Go out on main air duct to be provided with fresh air and send out other air duct, sent out in the fresh air and fresh air bypass air-valve is sequentially installed on other air duct
And evaporator, differential pressure pickup is both provided in the dividing wall type heat exchanger tube side import and tube side outlet, described new
Wind pressure, which enters, is sequentially installed with fresh-air fan and electrical auxiliary heater in air duct, the differential pressure pickup and electrical auxiliary heater are equal
Access control cabinet.
The stored energy mechanism includes air compressor, thermal storage and energy accumulation water tank, enclosed spiral heater, condenser, pneumatics
Machine thermal energy recoverer, energy storage water circulating pump and energy storage heat release water pump, the condenser, throttle valve, evaporator and compressor according to
Secondary connection forms a circulation loop, and the air compressor machine thermal energy recoverer is arranged in parallel with condenser, air compressor machine thermal energy recycling
Device is used to absorb the thermal energy of air compressor, and the enclosed spiral heater is located in thermal storage and energy accumulation water tank, the enclosed coil pipe
In first pipe between one end access condenser and air compressor machine thermal energy recoverer of heater, other end access energy storage recirculated water
The entrance of pump, energy storage water circulating pump outlet are accessed on the second pipe between condenser and air compressor thermal energy recoverer,
It is sent out in the fresh air and is additionally provided with fresh air supplementary mechanism on air duct.
The fresh air that the fresh air supplementary mechanism includes fresh air supplement air duct and is successively set in fresh air supplement air duct
Supplementary heating wind turbine, heat release air heater and fresh air supplement air-valve, entrance and the thermal storage and energy accumulation water tank of energy storage heat release water pump connect
Logical, outlet accesses heat release air heater by pipeline.
The utility model has the advantages that：Fresh air is heated using dividing wall type heat exchanger, return air is changed in dividing wall type heat exchanger tube side
Heat is easily cleared up；Electrical auxiliary heater work defrosting is controlled by differential pressure pickup.It is sharp when usually heat load is not high
With heat pump combination air compressor machine thermal energy recoverer to stored energy mechanism heat release, stored energy mechanism absorbs heat, in extreme weather, stored energy mechanism heat release
Fresh air heating load is supplemented, usually stored energy mechanism may be surface structures heating or provide bath hot water demand for heat.This reality
Overcome ventilation resistance with the included wind turbine of the simple and reliable operation of novel system composition, do not increase the ventilation resistance of mine main fan, energy consumption
Low, the thermal efficiency is high, and low cost can save mass energy, and operating cost is low, environmentally friendly, can effectively reduce to environment
Pollution, the economic benefit and social benefit promoted the use of be all extremely prominent.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is A-A diagrammatic cross-sections of Fig. 1.
Fig. 3 is B-B diagrammatic cross-sections of Fig. 1.
Specific embodiment
The utility model is further described with reference to specific embodiment, and the advantages of the utility model and feature will be with
Description and it is apparent.But these embodiments are only exemplary, do not form any restrictions to the scope of the utility model.
It it will be understood by those skilled in the art that can be to the utility model skill under the spirit and scope without departing from the utility model
The details and form of art scheme are modified or are replaced, but these modifications and replacement each fall within the scope of protection of the utility model
It is interior.
Referring to Fig. 1 to Fig. 3, the utility model is related to the system that a kind of return air residual heat in mine directly recycles, including returning
Ventilating shaft cylinder 1, Intake shaft 15, deflector, heat exchange mechanisms and stored energy mechanism, the return air pit shaft 1 and Intake shaft 15 it
Between be disposed with deflector, heat exchange mechanisms and stored energy mechanism.
The deflector includes ground return airway 2, return air diffuser 4 and return air and introduces air duct 6, and the ground is returned
The one end in wind air duct 2 is connected with return air pit shaft 1, and the other end is connected with the air inlet of return air diffuser 4, the return air diffuser 4
The air inlet that first air outlet introduces air duct 6 with return air connects, and the return air introduces the air outlet access heat exchange mechanisms in air duct 6,
Second air outlet of the return air diffuser 4 is communicated with the external world；Main fan 3 is installed in the ground return airway 2, is returned
Wind, which is introduced in air duct 6, is equipped with return air introducing air-valve 5.
The heat exchange mechanisms include heat-exchange unit 7, return air fan 12, fresh air press-in air duct 9, fresh air submitting main air duct 13
Other air duct 14 is sent out with fresh air, dividing wall type heat exchanger 8 is provided in the heat-exchange unit 7, the dividing wall type heat exchanger 8 is package
Formula, dividing wall type heat exchanger housing 5-3 are located at the outside of dividing wall type heat exchanger tube side and dividing wall type heat exchanger shell side, wall-type heat exchange
Device tube side 5-1 inlet communications return air introduces air duct 6, and the tube side outlet of the dividing wall type heat exchanger is configured on heat-exchange unit 7
Return air fan 12 is in communication with the outside, and the shell side 5-2 inlet communications fresh air press-in air duct 9 of the dividing wall type heat exchanger, dividing wall type changes
The shell-side outlet connection fresh air of hot device sends out one end of main air duct 13, which sends out the other end of main air duct 13 and air-supply pit shaft
15 connections；It is sent out in the fresh air and the other air duct 14 of fresh air submitting is provided on main air duct 13, other air duct 14 is sent out in the fresh air
On be sequentially installed with fresh air bypass air-valve 23 and evaporator 16, it is equal in the dividing wall type heat exchanger tube side import and tube side outlet
Differential pressure pickup 30 is provided with, fresh-air fan 10 and electrical auxiliary heater are sequentially installed in the fresh air press-in air duct 9
11, the differential pressure pickup 30 and electrical auxiliary heater 11 access control cabinet.
The stored energy mechanism includes air compressor 20, thermal storage and energy accumulation water tank 21, enclosed spiral heater 22, condenser
17th, air compressor machine thermal energy recoverer 28, energy storage water circulating pump 26 and energy storage heat release water pump 27, the condenser 17, throttle valve 19,
Evaporator 16 and compressor 18 are sequentially communicated to form a circulation loop, and the air compressor machine thermal energy recoverer 28 and condenser 17 are simultaneously
Connection setting, the air compressor machine thermal energy recoverer 28 are used to absorb the thermal energy of air compressor 20, the enclosed spiral heater 22
In thermal storage and energy accumulation water tank 21, one end access condenser 17 and the air compressor machine thermal energy recoverer 28 of the enclosed spiral heater 22
Between first pipe on, the entrance of other end access energy storage water circulating pump 26, the energy storage water circulating pump 26 outlet access condensation
On second pipe between device 17 and air compressor thermal energy recoverer 28, send out in the fresh air and be additionally provided on air duct 13
Fresh air supplementary mechanism.
The fresh air supplementary mechanism includes fresh air supplement air duct 31 and is successively set in fresh air supplement air duct 31
Fresh air supplementary heating wind turbine 25, heat release air heater 29 and fresh air supplement air-valve 24, the entrance and storage of energy storage heat release water pump 27
Hot energy-accumulating water tank 21 connects, and outlet accesses heat release air heater 29 by pipeline.
The operation principle of the utility model is：Mine return air enters ground air duct 2 by return air pit shaft 1, by main fan 3
Enter return air diffuser 4 afterwards, a part of return air is directly discharged into air, and another part return air is negative since return air fan 12 generates
Pressure introduces air-valve 5 by return air and return air introduces air duct 6 and enters in the dividing wall type heat exchanger of heat-exchange unit 7, the wall-type heat exchange
Device tube side import connection return air introduces air duct 6, and the tube side outlet of dividing wall type heat exchanger 8 connects outside atmosphere through return air fan 12,
In heat-exchange unit 7, temperature is reduced to 2 DEG C or so by return air after return air carries out heat exchange with fresh air -25 DEG C to 0 DEG C outdoor
Wind turbine 12 is discharged into air.Outdoor fresh air is pressed into the fresh air of heat-exchange unit 7 after electrical auxiliary heater 11 by fresh-air fan 10
Channel side after absorbing the heat in mine return air, sends out air duct 13, a part enters Intake shaft 15 and is used for pit shaft into fresh air
It is antifreeze, ensure the air themperature into pit shaft not less than 2 DEG C, another part enters fresh air bypass air duct 14 in non-extreme weather
Into the evaporator 16 of energy storage air source heat pump, will be stored in after Energy extraction in thermal storage and energy accumulation water tank 21.Air compression
Thermal energy in 20 oil of compressor is transmitted to by compressed air thermal energy recoverer 28 in energy storage recirculated water, and then is heated by enclosed coil pipe
Energy is stored in thermal storage and energy accumulation water tank 21 by device 22.By heat release water pump by the heat in thermal storage and energy accumulation water tank 21 under extreme weather
Water is squeezed into heat release air heater 29, and supplementary heating is carried out to fresh air.When two differential pressure pickups 30 detect that pressure difference is more than
It may determine that frost occurs in the heat exchanger surface of 8 tube side of dividing wall type heat exchanger during setting value, start electricity auxiliary heating automatically
Device 11 carries out defrosting work, when differential pressure pickup feedback pressure difference is located at the work of normal range (NR) formula stopping electric heating device 11
Make.
Due to being the air feed that arterial highway is entered the wind using flood tide mine return air heat energy resource heating coal mine that is continuous, stablizing,
It does not need to use the additional energy.Therefore, the system that a kind of return air residual heat in mine of the utility model directly recycles can save
About mass energy, and operating cost is low, it is environmentally friendly, the pollution to environment can be effectively reduced.
Claims (4)
1. the system that a kind of return air residual heat in mine directly recycles, which is characterized in that including return air pit shaft, Intake shaft, lead
Mechanism, heat exchange mechanisms and stored energy mechanism are flowed, deflector, heat exchange are disposed between the return air pit shaft and Intake shaft
Mechanism and stored energy mechanism；The deflector includes ground return airway, return air diffuser and return air and introduces air duct, describedly
One end of face return airway is connected with return air pit shaft, and the other end is connected with the air inlet of return air diffuser, the return air diffuser
The air inlet that first air outlet introduces air duct with return air connects, and the return air introduces the air outlet access heat exchange mechanisms in air duct, should
Second air outlet of return air diffuser is communicated with the external world；Main fan is installed in the ground return airway, return air draws
Enter to be equipped with return air in air duct and introduce air-valve.
2. the system that a kind of return air residual heat in mine according to claim 1 directly recycles, which is characterized in that described
Heat exchange mechanisms include heat-exchange unit, return air fan, fresh air press-in air duct, fresh air submitting main air duct and fresh air and send out other air duct, institute
It states and dividing wall type heat exchanger is provided in heat-exchange unit, which is shell-tube type, and the import of dividing wall type heat exchanger tube side connects
Logical return air introduces air duct, and the tube side of the dividing wall type heat exchanger exports the configured return air fan on heat-exchange unit and the external world even
It is logical, the shell side inlet communication fresh air press-in air duct of the dividing wall type heat exchanger, the shell-side outlet connection fresh air of dividing wall type heat exchanger
One end of main air duct is sent out, the other end which sends out main air duct is connected with air-supply pit shaft；It is sent out on main air duct in the fresh air
It is provided with fresh air and sends out other air duct, sent out in the fresh air and fresh air bypass air-valve and evaporator are sequentially installed on other air duct,
Differential pressure pickup is both provided in the dividing wall type heat exchanger tube side import and tube side outlet, air duct is pressed into the fresh air
Fresh-air fan and electrical auxiliary heater are inside sequentially installed with, the differential pressure pickup and electrical auxiliary heater access control
Case.
3. the system that a kind of return air residual heat in mine according to claim 2 directly recycles, which is characterized in that described
Stored energy mechanism includes air compressor, thermal storage and energy accumulation water tank, enclosed spiral heater, condenser, air compressor machine thermal energy recoverer, storage
Energy water circulating pump and energy storage heat release water pump, the condenser, throttle valve, evaporator and compressor are sequentially communicated to form a cycle
Circuit, the air compressor machine thermal energy recoverer are arranged in parallel with condenser, which is used to absorb air pressure
The thermal energy of contracting machine, the enclosed spiral heater are located in thermal storage and energy accumulation water tank, one end access of the enclosed spiral heater
In first pipe between condenser and air compressor machine thermal energy recoverer, the other end accesses the entrance of energy storage water circulating pump, the energy storage
On second pipe between water circulating pump outlet access condenser and air compressor thermal energy recoverer, sent out in the fresh air
Fresh air supplementary mechanism is additionally provided on air duct.
4. the system that a kind of return air residual heat in mine according to claim 3 directly recycles, which is characterized in that described
Fresh air supplementary mechanism include fresh air supplement air duct and be successively set on fresh air supplement air duct in fresh air supplementary heating wind turbine, put
Hot air heater and fresh air supplement air-valve, the entrance of energy storage heat release water pump are connected with thermal storage and energy accumulation water tank, and outlet passes through pipeline
Access heat release air heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721389716.0U CN207527875U (en) | 2017-10-26 | 2017-10-26 | The system that a kind of return air residual heat in mine directly recycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721389716.0U CN207527875U (en) | 2017-10-26 | 2017-10-26 | The system that a kind of return air residual heat in mine directly recycles |
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| Publication Number | Publication Date |
|---|---|
| CN207527875U true CN207527875U (en) | 2018-06-22 |
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ID=62570985
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721389716.0U Active CN207527875U (en) | 2017-10-26 | 2017-10-26 | The system that a kind of return air residual heat in mine directly recycles |
Country Status (1)
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| CN (1) | CN207527875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083673A (en) * | 2018-10-19 | 2018-12-25 | 中国恩菲工程技术有限公司 | Mine heating according to need system |
| CN112282825A (en) * | 2020-11-12 | 2021-01-29 | 北京中矿赛力贝特节能科技有限公司 | Well head air supply arrangement |
-
2017
- 2017-10-26 CN CN201721389716.0U patent/CN207527875U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083673A (en) * | 2018-10-19 | 2018-12-25 | 中国恩菲工程技术有限公司 | Mine heating according to need system |
| CN109083673B (en) * | 2018-10-19 | 2024-01-26 | 中国恩菲工程技术有限公司 | Mine on-demand heating system |
| CN112282825A (en) * | 2020-11-12 | 2021-01-29 | 北京中矿赛力贝特节能科技有限公司 | Well head air supply arrangement |
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