CN105756698A - Roadway partial cooling device and roadway partial cooling method - Google Patents
Roadway partial cooling device and roadway partial cooling method Download PDFInfo
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- CN105756698A CN105756698A CN201610130695.4A CN201610130695A CN105756698A CN 105756698 A CN105756698 A CN 105756698A CN 201610130695 A CN201610130695 A CN 201610130695A CN 105756698 A CN105756698 A CN 105756698A
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- 238000001816 cooling Methods 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000004378 air conditioning Methods 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000005057 refrigeration Methods 0.000 claims description 89
- 238000000034 method Methods 0.000 claims description 20
- 239000003063 flame retardant Substances 0.000 claims description 6
- 239000006200 vaporizer Substances 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 230000001934 delay Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Combustion & Propulsion (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a roadway partial cooling device and a roadway partial cooling method. The cooling device comprises an electrically controlled water source heat pump central air-conditioning unit and a counter rotating axial flow fan, wherein the water source heat pump central air-conditioning unit is located in a ventilation position of a roadway; the counter rotating axial flow fan is arranged in a main engine machine room in the roadway and is connected with the air-conditioning unit; the roadway partial cooling device further comprises an air conveying cooling pipe; the upper end of the air conveying cooling pipe extends to a mining field and the lower end of the air conveying cooling pipe is communicated with the counter rotating axial flow fan; the roadway is further internally provided with a water cabin for supplying water to the air-conditioning unit. The invention aims at providing the roadway partial cooling device which is small in investment, simple to operate and obvious in cooling effect; the energy consumption is greatly reduced through the roadway partial cooling method adopting the device and heat is not discharged to the roadway; the energy-saving effect is remarkably improved, a heat damage problem is effectively avoided, an engineering progress can be easily accelerated and the engineering quality is guaranteed.
Description
Technical field
The present invention relates to pit mining technical field, particularly relate to tunnel heat sink and the method used in a kind of pit mining operation.
Background technology
Along with the increase of the pit mining degree of depth, mining face under mine Climatic regionalization problem is increasingly severe.For this problem, gold mine 26 stage casing, chats Group Co., Ltd tinkling of pieces of jade south, current Shandong face adopts forced ventilation mode, though which alleviates heat evil problem to a certain extent, but owing to underground gushing water heat is big, so, the draft type of this routine is still difficult to meet cooling demand, and the mean temperature of getting working face is also up to about 39 °, therefore, heat evil problem still seriously governs project progress, affects construction quality.
Summary of the invention
The technical problem to be solved in the present invention is to provide little, simple to operate, the cooling-down effect obvious tunnel local cooling device of a kind of investment, adopt this device that tunnel carries out local cooling and greatly reduce energy consumption and not to tunnel heat extraction, energy-saving effect significantly improves, efficiently avoid heat evil problem, be conducive to speeding up the work, ensureing construction quality.
Tunnel local cooling of the present invention device, including automatically controlled water-source heat-pump central air conditioner unit, Counter rotating axial flow Fan, described water-source heat-pump central air conditioner unit is positioned at vent position place, tunnel, described Counter rotating axial flow Fan is arranged at the main frame machine room in tunnel Nei and air conditioning unit is connected with described, also include sending forced air cooled tube, described sending forced air cooled tube upper end to extend to digging scene, lower end connects with described Counter rotating axial flow Fan, is additionally provided with to the sump of described air conditioning unit water supply in described tunnel.
Tunnel local cooling of the present invention device, wherein said air conditioning unit include water source refrigeration unit, refrigeration unit, control unit is set in described water source refrigeration unit, the air inlet of described Counter rotating axial flow Fan is connected by air channel with water source refrigeration unit, air outlet is connected with sending forced air cooled tube, being provided with tubaeform air-out collecting pipe between described air inlet and water source refrigeration unit, one end that described air-out collecting pipe opening is little is connected with described air inlet, and one end that opening is big is connected with described water source refrigeration unit.
Tunnel local cooling of the present invention device, wherein said water source refrigeration unit is two, described Counter rotating axial flow Fan is one, and refrigeration unit, control unit in two described water source refrigeration unit are independent mutually, and are equipped with electric boiling plate in two described water source refrigeration unit.
Tunnel local cooling of the present invention device, wherein said forced air cooled tube is sent vertically to be suspended to top, described tunnel, the described interior pipe sending forced air cooled tube is flame retardant glass fiber reinforced plastic, said inner tube is outside is coated with fire-retardant rubber and plastic warming plate, the outside external application fireproof glass Colophonium silk cloth of described warming plate, the described quantity sending forced air cooled tube is at least one joint, send and adopt ring flange to connect between forced air cooled tube described in two adjacent sections.
Tunnel local cooling of the present invention device, is connected to water-supply-pipe between wherein said water source refrigeration unit and sump, described water-supply-pipe is PE or PP-R pipe, and described water-supply-pipe is also equiped with centrifugal pump, y-type filter, hydrocyclone.
Tunnel local cooling of the present invention device, wherein said water source refrigeration unit is also associated with discharge pipe line, and the backwater in described sump drains into the tunnel near water source refrigeration unit by described discharge pipe line, and described discharge pipe line is provided with water flow switch, ball valve.
Tunnel local cooling of the present invention device, the shell of wherein said water source refrigeration unit adopts stainless steel material to make, the compressor of described water source refrigeration unit is screw compressor, and heat exchanger is corronil coaxial-type heat exchanger, and vaporizer is the big pitch of fins hydrophilic finned heat exchanger of inner screw thread copper pipe.
Tunnel local cooling of the present invention device, is additionally provided with fire extinguisher in wherein said tunnel.
Tunnel local cooling of the present invention device, is additionally provided with chopper, catalyst, thermorelay, time delays relay in wherein said water source refrigeration unit.
Present invention also offers a kind of tunnel local cooling method utilizing said apparatus, comprise the steps:
A, determine cooling load: calculate, according to tunnel condition, the refrigerating capacity that in tunnel, every meter of section needs, and the cooling section that digging scene needs, further according to cold-hot air convection exchange loss near the loss of cold air course of conveying and digging scene, the overall refrigerating effect of design water source refrigeration unit and input general power；
B, select the quantity of water source refrigeration unit, overall dimensions according to above-mentioned cooling load, and select corresponding compressor, heat exchanger, vaporizer, Counter rotating axial flow Fan；
C, sending forced air cooled tube to be vertically suspended to top, described tunnel by described, then by water source refrigeration unit and Counter rotating axial flow Fan, and water source refrigeration unit is connected respectively with sump；
D, the refrigeration unit of unlatching water source refrigeration unit, control unit, open Counter rotating axial flow Fan simultaneously, and open water-supply-pipe, discharge pipe line, tunnel is carried out local cooling's process until tunnel temperature is down to desired value.
The heat sink of the present invention and cool-down method little, simple to operate, the cooling-down effect of investment are obvious, the tunnel, local of the difficulty of ventilating run into when being particularly well-suited to the only head driving of deeps mines.Water source refrigeration unit adopt high-quality, efficiently, the parts of low noise and material, simultaneously, the refrigeration modes of the feasible dual-energy-saving in this down-hole of water source type owing to adopting, thus greatly reduce energy consumption and not to tunnel heat extraction, heat is taken away by the water after water source refrigeration unit, and energy-saving effect significantly improves.In a word, the heat sink of the present invention and method efficiently avoid heat evil problem, are conducive to speeding up the work, ensureing construction quality.
Below in conjunction with accompanying drawing, the tunnel local cooling device and method of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of tunnel local cooling of the present invention device and method；
Fig. 2 is water source refrigeration unit unit front view in tunnel local cooling of the present invention device and method；
Fig. 3 is water source refrigeration unit unit top view in tunnel local cooling of the present invention device and method；
Fig. 4 send forced air cooled tube single tube main pseudosection in tunnel local cooling of the present invention device and method；
Fig. 5 send forced air cooled tube single tube left view in tunnel local cooling of the present invention device and method；
Fig. 6 send forced air cooled tube single tube left view profile in tunnel local cooling of the present invention device and method；
Fig. 7 is water source refrigeration unit, Counter rotating axial flow Fan combinative structure schematic diagram in tunnel local cooling of the present invention device and method；
26 tunnel, the stage casing heat sinks that Fig. 8 is tunnel local cooling of the present invention device and method embodiment arrange schematic diagram；
Fig. 9 is the partial enlarged drawing at A place in Fig. 8.
Detailed description of the invention
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 7, tunnel local cooling of the present invention device includes water-source heat-pump central air conditioner unit, Counter rotating axial flow Fan 2, send forced air cooled tube 3.Water-source heat-pump central air conditioner unit is positioned at vent position place, tunnel, including water source refrigeration unit 1, set refrigeration unit, control unit in water source refrigeration unit 1, refrigeration unit, control unit, Counter rotating axial flow Fan 2 opening and closing by the control of the electrical control cubicles 7 in main frame machine room 10 in tunnel.Water source refrigeration unit 1 is common operation of air conditioning systems, and its concrete structure and using method can refer to known general knowledge, do not repeat herein.Counter rotating axial flow Fan 2 is arranged in the main frame machine room 10 in tunnel and is connected with air conditioning unit.Specifically, the air inlet of Counter rotating axial flow Fan 2 is connected by air channel with water source refrigeration unit 1, air outlet is connected with sending forced air cooled tube 3, tubaeform air-out collecting pipe 21 it is provided with between air inlet and water source refrigeration unit 1, one end that air-out collecting pipe 21 opening is little is connected with air inlet, and one end that opening is big is connected with water source refrigeration unit 1.Sending forced air cooled tube 3 upper end to extend to digging scene, lower end connects with Counter rotating axial flow Fan 2.Shown in Fig. 4, Fig. 5, Fig. 6, in the present embodiment, forced air cooled tube 3 is sent vertically to be suspended to top, tunnel, for reducing the refrigerating loss in air-supply windage and cold wind course of conveying as far as possible, the internal diameter sending forced air cooled tube 3 can be 300mm, and pipe 32 is flame retardant glass fiber reinforced plastic in it, interior pipe is outside is coated with fire-retardant rubber and plastic warming plate 33, the outside external application fireproof glass Colophonium silk cloth 34 of warming plate 33.The cold air of water source refrigeration unit 1 is delivered near digging scene by the forced air cooled tube 3 that send of internal diameter 300mm, continuous driving along with tunnel, forced air cooled tube 3 can will be sent constantly to extend lengthening air-supply, so, the quantity sending forced air cooled tube 3 is at least one joint, when adopting two joints, two adjacent sections is sent and is adopted ring flange 31 to connect between forced air cooled tube 3.When air supplying distance is long affect cooling-down effect time, the water source refrigeration unit 1 of machine room 10 and send forced air cooled tube 3 also can move forward to needs, near the on-the-spot appropriate location of digging, return air is from the air of the temperature near ventilation well head relatively low (about 34 DEG C).
Preferably, above-mentioned water source refrigeration unit 1 is two, and Counter rotating axial flow Fan 2 is one.Consider the features such as downhole temperature height, high humidity, corrosivity are strong, add unit and need to be easy to mobile, so refrigeration unit, control unit in two water source refrigeration unit 1 are independent mutually.It is equipped with electric boiling plate in two water source refrigeration unit 1, to avoid internal electrical part moisture damage simultaneously.
It is additionally provided with in above-mentioned tunnel to the sump of air conditioning unit water supply, between water source refrigeration unit 1 and sump, is connected to water-supply-pipe 4.When water source refrigeration unit 1 is two, two water source refrigeration unit 1 being provided with water inlet 14, water-supply-pipe 4 is connected with the water inlet 14 on two units respectively, is that two units supply water.Water-supply-pipe 4 is that intensity is high, corrosion-resistant, environmental protection, long service life, PE or PP-R suitable in subsurface environment manage, and water-supply-pipe 4 is also equiped with centrifugal pump 41, y-type filter 42, hydrocyclone 43.Centrifugal pump 41 carries water source by power, and y-type filter 42 crosses all kinds of impurity in drainage, it is prevented that plugging, and hydrocyclone 43 can remove the little granule silt in water source, down-hole, uses the said equipment can extend heat sink whole service life.Water source refrigeration unit 1 is also associated with discharge pipe line 5, discharge pipe line 5 is connected with the outlet 15 in two water source refrigeration unit 1 respectively, backwater 9 in sump drains into the tunnel near water source refrigeration unit 1 by discharge pipe line 5, and discharge pipe line 5 is provided with water flow switch 51, ball valve 52.The flowing of water flow switch 51 controllable flow is set, adopts ball valve 52 then can control and detect water flow size.The backwater 9 of water source refrigeration unit 1 can be back to the tunnel near water source refrigeration unit 1 or specify position.
Preferably, the shell of water source refrigeration unit 1 adopts stainless steel material to make, and has fundamentally stopped to get rusty and spray-on coating obscission.
Considering that subsurface environment is comparatively severe, for guaranteeing the service life of water source refrigeration unit 1, selection weatherability is strong, high temperature resistant, the high-quality compressor of reliable in quality, and international famous brand U.S. paddy wheel board screw compressor selected by the compressor 11 of the present embodiment.
In view of tunnel subsoil water contains chloride ion (1500ppm), for guaranteeing that set heat exchange device is not because of change of water quality and infection service life, therefore the heat exchanger 12 of water source refrigeration unit 1 selects the corronil coaxial-type heat exchanger of corrosion resistance and good.
The vaporizer 13 of water source refrigeration unit 1 is the big pitch of fins hydrophilic finned heat exchanger of inner screw thread copper pipe.Because tunnel dirt in air is too much, heat sink is again from water source refrigeration unit 1 top return air, sidewall air supply, so, blower fan all dust in the course of the work, foul are all adsorbed on evaporator external, the big pitch of fins hydrophilic finned heat exchanger of above-mentioned inner screw thread copper pipe is Easy-dismounting structure, when surface is crossed dirty clean, clean more convenient.
Preferably, for meeting the fire-fighting demand in tunnel, fire extinguisher 6 in tunnel, it is additionally provided with.
Preferably; chopper, catalyst, thermorelay, time delays relay it is additionally provided with in water source refrigeration unit 1; can individually open and close flexibly, so, water source refrigeration unit 1 also has the defencive functions such as high-low pressure, hydropenia, water shortage, overheated, phase sequence, time delay.
Shown in Fig. 9, for 26 tunnels, stage casing, the method utilizing said apparatus that local, tunnel is lowered the temperature being illustrated below, the method comprises the steps:
A, determine cooling load: calculate, according to tunnel condition, the refrigerating capacity that in tunnel, every meter of section needs, and the cooling section that digging scene needs, further according to cold-hot air convection exchange loss near the loss of cold air course of conveying and digging scene, the overall refrigerating effect of design water source refrigeration unit 1 and input general power.Specifically, according to the tunnel air-conditioning experience that applicant did in the past, in tunnel when relative closure, few ventilation, in tunnel, every meter of section needs 2000～3000w refrigerating capacity, digging scene needs the cooling section of 20～30m, adding cold-hot air convection exchange loss near the loss of cold air course of conveying and digging scene, the overall refrigerating effect proposing meter water source, tunnel refrigeration unit 1 is 110kw, unit input general power 24kw.
B, select the quantity of water source refrigeration unit 1, overall dimensions according to above-mentioned cooling load, and select corresponding compressor 11, heat exchanger 12, vaporizer 13, Counter rotating axial flow Fan 2, specifically, limit according to mining area winding cage size, the water source refrigeration unit 1 in tunnel is designed as two, the overall dimensions of every water source refrigeration unit 1 are: long 1100mm × wide 700mm × high 1600mm, and the unit after combination is of a size of: long 1100mm × wide 1400mm × high 1600mm.Meanwhile, for realizing the conveying of reliable cold wind, big flow (15000m is adopted3/ h), the Counter rotating axial flow Fan 2 of high static pressure (1000pa), blower fan input power is 2 × 5.5KW, and blower fan air supplying distance is up to more than 300mm.
C, forced air cooled tube 3 being sent vertically to be suspended to top, tunnel, then by water source refrigeration unit 1 and Counter rotating axial flow Fan 2, and water source refrigeration unit 1 is connected respectively with sump.Such as, the maximum water consumption of water source refrigeration unit 1 can be 20m3/ h, this water source come from tunnel near sump, it is, of course, also possible to for other mining area can supply equipment, actual job can be selected according to demand, do not enumerate herein.
D, the refrigeration unit of automatically controlled unlatching water source refrigeration unit 1, control unit, open Counter rotating axial flow Fan 2 simultaneously, and open water-supply-pipe 4, discharge pipe line 5, tunnel is carried out local cooling's process until tunnel temperature is down to desired value.
The mean temperature 39 DEG C of face dry bulb 1 before 26 tunnel, stage casing coolings, relative humidity 90%, the certain distance inward along tunnel, the mean temperature of dry bulb 2 200 36 DEG C, relative humidity 85%, the mean temperature 34 DEG C of the return air point dry bulb 3 300 near ventilation well head, relative humidity 82%, after above-mentioned cool-down method is lowered the temperature, sending the temperature of dry bulb 1 near the face of forced air cooled tube 3 upper end to be down to 28 DEG C, relative humidity is down to 78%, the 30m place inward along tunnel, the temperature of dry bulb 2 200 is down to 30 DEG C, and relative humidity is down to 82%, and cooling-down effect is obvious.
Embodiment described above is only that the preferred embodiment of the present invention is described; not the scope of the present invention is defined; under the premise designing spirit without departing from the present invention; various deformation that technical scheme is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present invention is determined.
Claims (10)
1. tunnel local cooling device, it is characterized in that: include automatically controlled water-source heat-pump central air conditioner unit, Counter rotating axial flow Fan (2), described water-source heat-pump central air conditioner unit is positioned at vent position place, tunnel, described Counter rotating axial flow Fan (2) is arranged at the main frame machine room (10) in tunnel Nei and air conditioning unit is connected with described, also include sending forced air cooled tube (3), described forced air cooled tube (3) upper end is sent to extend to digging scene, lower end connects with described Counter rotating axial flow Fan (2), is additionally provided with to the sump of described air conditioning unit water supply in described tunnel.
2. tunnel local cooling according to claim 1 device, it is characterized in that: described air conditioning unit include automatically controlled water source refrigeration unit (1), refrigeration unit is set in described water source refrigeration unit (1), control unit, the air inlet of described Counter rotating axial flow Fan (2) is connected by air channel with water source refrigeration unit (1), air outlet is connected with sending forced air cooled tube (3), tubaeform air-out collecting pipe (21) it is provided with between described air inlet and water source refrigeration unit (1), one end that described air-out collecting pipe (21) opening is little is connected with described air inlet, one end that opening is big is connected with described water source refrigeration unit (1).
3. tunnel local cooling according to claim 2 device, it is characterized in that: described water source refrigeration unit (1) is two, described Counter rotating axial flow Fan (2) is one, refrigeration unit, control unit in two described water sources refrigeration unit (1) are independent mutually, and are equipped with electric boiling plate in two described water sources refrigeration unit (1).
4. tunnel local cooling according to claim 3 device, it is characterized in that: described in send forced air cooled tube (3) to be vertically suspended to top, described tunnel, the described interior pipe sending forced air cooled tube (3) is flame retardant glass fiber reinforced plastic, said inner tube (32) is outside is coated with fire-retardant rubber and plastic warming plate (33), outside external application fireproof glass Colophonium silk cloth (34) of described warming plate (33), the described quantity sending forced air cooled tube (3) is at least one joint, send and adopt ring flange (31) to connect between forced air cooled tube (3) described in two adjacent sections.
5. the tunnel local cooling device according to any one of claim 2 to 4, it is characterized in that: between described water source refrigeration unit (1) and sump, be connected to water-supply-pipe (4), described water-supply-pipe (4) is managed for PE or PP-R, and described water-supply-pipe (4) is also equiped with centrifugal pump (41), y-type filter (42), hydrocyclone (43).
6. tunnel local cooling according to claim 5 device, it is characterized in that: described water source refrigeration unit (1) is also associated with discharge pipe line (5), backwater (9) in described sump drains into the tunnel near water source refrigeration unit (1) by described discharge pipe line (5), and described discharge pipe line (5) is provided with water flow switch (51), ball valve (52).
7. tunnel local cooling according to claim 6 device, it is characterized in that: the shell at described water source refrigeration unit (1) adopts stainless steel material to make, the compressor (11) at described water source refrigeration unit (1) is screw compressor, heat exchanger (12) is corronil coaxial-type heat exchanger, and vaporizer (13) is the big pitch of fins hydrophilic finned heat exchanger of inner screw thread copper pipe.
8. tunnel local cooling according to claim 7 device, it is characterised in that: it is additionally provided with fire extinguisher (6) in described tunnel.
9. tunnel local cooling according to claim 6 device, it is characterised in that: it is additionally provided with chopper, catalyst, thermorelay, time delays relay in described water source refrigeration unit (1).
10. utilize the tunnel local cooling method of tunnel local cooling device described in claim 9, it is characterised in that: comprise the steps:
A, determine cooling load: calculate, according to tunnel condition, the refrigerating capacity that in tunnel, every meter of section needs, and the cooling section that digging scene needs, further according to cold-hot air convection exchange loss, the overall refrigerating effect of design water source refrigeration unit (1) and input general power near the loss of cold air course of conveying and digging scene；
B, select the quantity at water source refrigeration unit (1), overall dimensions according to above-mentioned cooling load, and select corresponding compressor (11), heat exchanger (12), vaporizer (13), Counter rotating axial flow Fan (2)；
C, sending forced air cooled tube (3) to be vertically suspended to top, described tunnel by described, then by water source refrigeration unit (1) and Counter rotating axial flow Fan (2), and water source refrigeration unit (1) is connected respectively with sump；
D, the refrigeration unit of unlatching water source refrigeration unit (1), control unit, open Counter rotating axial flow Fan (2) simultaneously, and open water-supply-pipe (4), discharge pipe line (5), tunnel is carried out local cooling's process until tunnel temperature is down to desired value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130695.4A CN105756698A (en) | 2016-03-08 | 2016-03-08 | Roadway partial cooling device and roadway partial cooling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130695.4A CN105756698A (en) | 2016-03-08 | 2016-03-08 | Roadway partial cooling device and roadway partial cooling method |
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| CN105756698A true CN105756698A (en) | 2016-07-13 |
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| CN201610130695.4A Pending CN105756698A (en) | 2016-03-08 | 2016-03-08 | Roadway partial cooling device and roadway partial cooling method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270584A (en) * | 2017-07-25 | 2017-10-20 | 中南大学 | A kind of distributed cooling air source heat pump system of utilization mine low grade heat energy |
| CN107327311A (en) * | 2017-05-18 | 2017-11-07 | 中国矿业大学 | A kind of long tunnel source of the gas cooling system |
| 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 |
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