CN206503614U - A kind of tunnel shaft ventilation unit based on heat power self-circulation system - Google Patents
A kind of tunnel shaft ventilation unit based on heat power self-circulation system Download PDFInfo
- Publication number
- CN206503614U CN206503614U CN201720144932.2U CN201720144932U CN206503614U CN 206503614 U CN206503614 U CN 206503614U CN 201720144932 U CN201720144932 U CN 201720144932U CN 206503614 U CN206503614 U CN 206503614U
- Authority
- CN
- China
- Prior art keywords
- tunnel
- vertical shaft
- circulation system
- shaft
- heat power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Landscapes
- Building Environments (AREA)
Abstract
The utility model discloses a kind of tunnel shaft ventilation unit based on heat power self-circulation system, vertical shaft including being arranged on tunnel side, the vertical shaft is connected by transversal ventilation road with tunnel, the top exit of the vertical shaft is arranged on the massif surface where tunnel, the temperature of gas in vertical shaft can be improved by being provided with the vertical shaft, and the heat power self-circulation system of negative pressuren zone is formed in vertical shaft, the heat power self-circulation system includes solar thermal collector and thermal cycle water pipe, the delivery port of the solar thermal collector is connected with the water inlet of thermal cycle water pipe, by changing the temperature in tunnel shaft, raise the temperature of gas in tunnel shaft, accelerate the flowing velocity of air in vertical shaft, so as to be provided in heat under the basis of power, realize the benign cycle of air motion and blower fan rotation, reach the purpose of vertical shaft automatic ventilation.
Description
Technical field
The utility model is related to a kind of tunnel shaft automatic ventilation equipment, more particularly to a kind of stack effect that is based on is by inciting somebody to action
Solar energy changes into heat energy to realize tunnel shaft automatic ventilation equipment.
Background technology
The need for rapid economic development, China's transport development is fast-developing, and the Quantity of vcehicular tunnel increases year by year
Plus.In order to ensure tunnel safety operation, the energy consumption during tunnel operation how is effectively controlled, as the key of tunnel construction
Technical indicator.Tunnel ventilation comes real by jet blower longitudinal ventilation more at present as the key technique of tunnel operation security
The exchange of existing tunnel inner air and outer air, to reach that tunnel internal air quality meets the health requirements of current personnel.Such a mode pair
It is more effective in the shorter tunnel of length, but for major long tunnel then without significant effect, there is high energy consumption, it is inefficient
Feature.Major long tunnel is general by the way of the ventilation of perpendicular (oblique) well, tunnel inner air and outer air is connected, by being arranged on vertical shaft interior axle
The exchange of tunnel inner air and outer air is realized in the effect of flow fan, and to meet the demand of tunnel safety operation, this mode can be met
The safe operation requirement of current long highway tunnel, but have the shortcomings that high energy consumption, noise are big, substantial amounts of resource is lost.
The content of the invention
In order to solve the above problems, there is provided one kind from the angle of energy-saving and emission-reduction and environmental protection for the utility model
Noiseless, low-loss tunnel shaft ventilation unit, the utility model is reasonable in design, by changing the temperature in tunnel shaft,
The temperature of gas in tunnel shaft is raised, accelerates the flowing velocity of air in vertical shaft, on the other hand passes through outer gas in tunnel shaft
Temperature is poor, accelerates the movement velocity of no-power air blower, further speeds up the discharge of air, so as to provide the base of power in heat
Under plinth, the benign cycle of air motion and blower fan rotation is realized, the purpose of vertical shaft automatic ventilation is reached, realizes high efficiency, low
The draft type of the green pollution-free of energy consumption.
To reach above-mentioned purpose, a kind of tunnel shaft ventilation dress based on heat power self-circulation system described in the utility model
The vertical shaft including being arranged on tunnel side is put, the vertical shaft is connected by transversal ventilation road with tunnel, is gone out at the top of the vertical shaft
Mouth, which is arranged on to be provided with the massif surface where tunnel, the vertical shaft, can improve the temperature of gas in vertical shaft, and in vertical shaft
The interior heat power self-circulation system for forming negative pressuren zone, the heat power self-circulation system includes solar thermal collector and heat recirculated water
Pipe, the delivery port of the solar thermal collector is connected with the water inlet of thermal cycle water pipe.
The delivery port of the thermal cycle water pipe is connected with self priming pump, the delivery port of the self priming pump and solar thermal collector
Water inlet is connected.
The temperature sensor for detecting thermal cycle conduit temperature is provided with the thermal cycle water pipe.
Also include the solar panel powered for self priming pump.
Insulation water storage box is provided between the solar thermal collector and thermal cycle water pipe.
No-power air blower is provided with the top of the vertical shaft.
The thermal cycle water pipe is arranged in the inwall of vertical shaft with " S " type.
The direction in the transversal ventilation road is diagonal upward direction, the interface position in the transversal ventilation road and vertical shaft be higher than with
The interface position in tunnel.
The vertical shaft is connected by transversal ventilation road with two tunnels.
Compared with prior art, the utility model at least has following beneficial technique effect, and the utility model is provided with perpendicular
Well, vertical shaft is connected by transversal ventilation road with tunnel, and the temperature of gas in vertical shaft can be improved by being provided with vertical shaft, and in vertical shaft
The interior heat power self-circulation system for forming negative pressuren zone, is heated water using solar energy, and the hot water storage after heating is stored in insulation
In water tank and be delivered in the thermal cycle water pipe being arranged in vertical shaft, energy resource consumption try one's best it is few on the premise of, realize tunnel
Vertical shaft carries out air and exchanged automatically, using the vertical shaft in tunnel as the chimney body for producing stack effect, on the one hand takes full advantage of
Existing structure, reduces quantities；On the other hand the destruction to environment is reduced, engineering construction is protected as far as possible and work as
The ecological environment on ground.
Further, the delivery port of thermal cycle water pipe is connected with self priming pump, the delivery port and solar thermal collector of self priming pump
Water inlet connection, self priming pump is used to promote water circulation in thermal cycle water pipe, improves scavenging efficiency.
Further, the temperature sensor for detecting thermal cycle conduit temperature is provided with thermal cycle water pipe, temperature is passed
Sensor is the temperature sensor with control function, and temperature sensor sets ceiling temperature and lower limit temperature in advance, when water temperature is low
When lower limit temperature, temperature sensor sends the signal to self priming pump and starts self priming pump, makes self-priming pump work, so that thermal cycle
Hot water or cold water in water pipe is flowed, to ensure the speed of air circulation；When water temperature is higher than ceiling temperature, temperature sensor
Send the signal to self priming pump to close self priming pump, save electric energy.
Further, in addition to for self priming pump the solar panel powered, using solar energy to the water in the circulatory system
Heated, realize that energy is changed, save the energy.
Further, insulation water storage box is provided between solar thermal collector and thermal cycle water pipe, insulation water storage box is used for
The hot water after being heated through solar thermal collector is stored, its surrounding carries out isothermal holding with insulation material, reach good insulation effect
Really, storage hot water as much as possible is come with this, to ensure the amount of hot water at night and cloudy day.
Further, no-power air blower is provided with the top of vertical shaft, is caused using natural wind and indoor and outdoor temperature difference
Air thermal convection current, promotes turbine rotation to arrange stale hot-air in tunnel shaft using centrifugal force and underbalance effect
Go out, heat of the no-power air blower to produce stack effect, without consuming other energy, takes full advantage of solar energy and turned as power
The heat energy of chemical conversion, improves the utilization ratio of energy, and the destruction to environment is reduced to greatest extent, has reached environment friendly and pollution-free
Requirement, while no-power air blower also plays the protective action to vertical shaft, can both prevent foreign matter from falling into vertical shaft and being made to thermal cycle water pipe
Into infringement or vertical shaft is resulted in blockage, moreover it is possible to effectively prevent sleet from causing vertical shaft, transversal ventilation road and tunnel ponding into vertical shaft.
Further, thermal cycle water pipe is arranged in the inwall of vertical shaft with " S " type, and thermal cycle water pipe and air are ensured with this
Contact area is as big as possible, and to obtain preferably heat exchange effect, the method for arranging of thermal cycle water pipe sufficiently adds vertical shaft
The length of inwall upper hose, makes the hot water increase that heat is distributed in vertical shaft, the effect of hot water has been played to greatest extent, has been improved
The utilization ratio of heat.
Further, the direction in transversal ventilation road is diagonal upward direction, and the interface position of transversal ventilation road and vertical shaft is higher than
With the interface position in tunnel, make the gas channel between tunnel and vertical shaft more smooth, be easy to air circulation.
Further, vertical shaft is connected by transversal ventilation road with two tunnels, and two tunnels use same vertical shaft, significantly
Construction fund has been saved, while the lateral connection passage design of tunnel and vertical shaft takes full advantage of traffic air, vertical shaft has been improved
Ventilation efficiency.
Brief description of the drawings
Fig. 1 is tunnel shaft schematic diagram；
Fig. 2 is heat power self-circulation system operational flow diagram；
Fig. 3 is heat power self-circulation system layout drawing；
Fig. 4 is that tunnel shaft top arrangement arranges schematic diagram；
In accompanying drawing：1- tunnels, 2- transversal ventilations road, 3- vertical shafts, 4- thermal cycle water pipe delivery ports, 5- heat recirculated water water inlet tubes
Mouthful, gas motion direction in 6- tunnels, 7- thermal cycle water pipes, 8- self priming pumps, 9- solar panels, 10- insulation water storage boxes,
11- is incubated water storage box water inlet, 12- solar thermal collectors, 13- solar thermal collector water inlets, 14- solar thermal collector water outlets
Mouthful, 15- insulation water storage box delivery ports, 17, wire, 18- no-power air blowers.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of reference picture 1, tunnel shaft ventilation unit based on heat power self-circulation system includes being arranged on two tunnels 1
Between vertical shaft 3, vertical shaft 3 connected with tunnel 1 respectively by transversal ventilation road 2, and two tunnels use same vertical shaft, save significantly
About construction fund, using the vertical shaft in tunnel as the chimney body for producing stack effect, on the one hand takes full advantage of existing knot
Structure, reduces quantities；On the other hand the destruction to environment is reduced, engineering construction is protected the ecology of locality as far as possible
Environment, the direction in transversal ventilation road 2 is diagonal upward direction, and the interface position in transversal ventilation road 2 and vertical shaft 3 is higher than and tunnel 1
Interface position, and the wagon flow side being shaped as in arc-shaped, transversal ventilation road 2 in the direction of air-flow and tunnel 1 in transversal ventilation road 2
To angle be less than 90 °, gas channel is smooth, is conducive to the mutual circulation of air and the air in vertical shaft in whole tunnel, Fig. 1
In arrow 6 be gas motion direction in tunnel, the top exit of vertical shaft 3 is arranged on the massif surface where tunnel 1, vertical shaft
Heat power self-circulation system is provided with 3, heat power self-circulation system is used for the temperature for improving gas in vertical shaft 3, and in vertical shaft 3
Interior formation negative pressuren zone, so as to be provided in heat under the basis of power, realizes the benign cycle of air motion and blower fan rotation, reaches
The purpose of vertical shaft automatic ventilation.
Reference picture 2 and Fig. 3, heat power self-circulation system include solar thermal collector 12 and solar panel 9, using too
Sun can be heated to the water in the circulatory system, realize energy change, save the energy, the delivery port 14 of solar thermal collector 12 with
The water inlet 11 of insulation water storage box 10 is connected, and the delivery port 15 of insulation water storage box 10 is connected with the water inlet 5 of thermal cycle water pipe 7,
Insulation water storage box 10 is used to store the hot water after solar thermal collector 12 is heated, and its surrounding carries out isothermal holding with insulation material,
Good heat insulation effect is reached, storage hot water as much as possible is come with this, to ensure the amount of hot water at night and cloudy day, thermal cycle
The delivery port 4 of water pipe 7 is connected with self priming pump 8, and the delivery port of self priming pump 8 is connected with the water inlet 13 of solar thermal collector 12, heat
The bottom of circulating water pipe 7 is provided with the temperature sensor 16 for detecting the temperature of thermal cycle water pipe 7, and solar panel 9 is used for
Power is provided for self priming pump 8, and by electrical power storage in the battery, so that as redundant electrical power, self priming pump 8 uses discontinuous operation side
Water circulation in formula, the electrical energy drive thermal cycle water pipe 7 produced using solar panel 9, at interval of certain time by vertical shaft 3
The water cooled off in inner surface heat circulating water pipe 7 is transmitted back to solar thermal collector 12 and heated again, while self priming pump 8 is passed by temperature
The control of sensor 16, its automatic start or closing after the signal of temperature sensor 16 is received, temperature sensor 16 are that band is controlled
The temperature sensor of function processed, temperature sensor 16 sets ceiling temperature and lower limit temperature in advance, when water temperature is less than lower limit temperature
When spending, temperature sensor sends the signal to self priming pump 8 and starts self priming pump, self priming pump 8 is carried out the friendship of hot and cold water in water pipe
Change, to ensure the speed of air circulation；When water temperature is higher than ceiling temperature, temperature sensor sends the signal to self priming pump 8 simultaneously
Self priming pump is closed, to save electric energy.Heat power self-circulation system realizes tunnel using the heat power self-circulation system of solar energy
Vertical shaft carries out air and exchanged automatically, reduces the input of tunnel shaft ventilation early stage equipment, and the device succinctly facilitates, low cost,
Early stage construction cost is small, and energy resource consumption is few, and thermal cycle water pipe 7 is arranged in the inwall on the top of vertical shaft 3 with " S " type, and heat is ensured with this
The contact area of circulating water pipe and air is as big as possible, to obtain preferably heat exchange effect, the method for arranging of thermal cycle water pipe
The length of vertical shaft inwall upper hose is sufficiently added, makes the hot water increase that heat is distributed in vertical shaft, plays to greatest extent
The effect of hot water, improves the utilization ratio of heat, and the effect of thermal cycle water pipe 7 is the delivery that will be incubated in water storage box 10
Into vertical shaft 3, occur heat exchange with the air in vertical shaft 3, improve gas temperature in vertical shaft, negative pressuren zone is formed in vertical shaft, with
Accelerate air circulation speed in tunnel.
Reference picture 4, the top of vertical shaft 3 is provided with no-power air blower 18, is caused using natural wind and indoor and outdoor temperature difference
Air thermal convection current, promote turbine rotation so as to using centrifugal force and underbalance effect by stale hot-air in tunnel shaft 3
Discharge, heat of the no-power air blower to produce stack effect, without consuming other energy, takes full advantage of solar energy institute as power
The heat energy changed into, improves the utilization ratio of energy, and the destruction to environment is reduced to greatest extent, has reached environmental protection without dirt
The requirement of dye, while no-power air blower also plays the protective action to vertical shaft, can both prevent foreign matter from falling into vertical shaft to thermal cycle water pipe
Cause damage or vertical shaft is resulted in blockage, moreover it is possible to effectively prevent sleet from causing vertical shaft, transversal ventilation road and tunnel product into vertical shaft
Water.
Operation principle of the present utility model is：By the heat exchange of air in hot water and vertical shaft, gas in vertical shaft is improved
Temperature, temperature rise after, gas density reduces and risen in vertical shaft, the sky thus formed in vertical shaft in negative pressuren zone, tunnel
Gas enters air dirty in vertical shaft, tunnel in the presence of draught head and heats up in the shaft and rise and discharge vertical shaft；It is another
Aspect, because temperature is higher in tunnel shaft, under conditions of vertical shaft inner air and outer air convection current, realizes the turbine of no-power air blower
Rotation, realizes the benign cycle for accelerating air discharge on the premise of heat provides power, so as to reach as few as possible
On the premise of expending the energy, the requirement that the dirty gas in tunnel is discharged to tunnel is realized using the solar energy of environmental protection.
Utility model works process is as follows：
First, the device of each in Fig. 3 is installed ready, solar thermal collector 12 is installed around the top of tunnel shaft 3, too
Positive energy heat collector delivery port 14 connects insulation water storage box water inlet 11, and the heat that insulation water storage box delivery port 15 is connected in vertical shaft 3 is followed
Thermal cycle water pipe delivery port 4 outside the water inlet 5 of ring water pipe 7, vertical shaft is connected with self priming pump 8, the delivery port and the sun of self priming pump 8
Energy heat collector water inlet 13 is connected, and thermal cycle water pipe 7 is arranged in vertical shaft in serpentine, and temperature sensor 16 is arranged on into vertical shaft
In thermal cycle water pipe 7 on, temperature sensor 16 will deliver a signal to self priming pump 8 according to temperature change in water pipe, self priming pump 8 with
Connected between solar panel 9 using wire 17, solar panel 9 is powered to self priming pump 8, self priming pump 8 simultaneously receives temperature
The signal control of sensor 16, no-power air blower 18 is arranged on the top of vertical shaft 3.The present apparatus is heated water using solar energy,
By the hot water storage after heating in insulation water storage box 10, and it is delivered in the thermal cycle water pipe 7 being arranged in vertical shaft, while root
The signal transmitted according to temperature sensor, sends back solar thermal collector 12 by the water after temperature reduction in thermal cycle water pipe 7 in good time
Heated, the hot water being at this moment incubated in water storage box 10 flows into heat recirculated water pipe 7, to ensure the normal operation of whole device,
Under all parts synergy of this EGR, higher temperature levels will be always held in vertical shaft, reached predetermined
It is required that, realize high efficiency, the air-conditioning requirement of low energy consumption of green pollution-free.
Compared with prior art, advantage of the present utility model is as follows：
1) device can reach the effect of the continual constant ventilation of vertical shaft long-time in the process of running, improve current
The present situation of vertical shaft inner blower service intermittent, improves the air quality in tunnel；
2) device is lost low, pollution-free in the process of running, has saved the substantial amounts of energy, has significantly reduced tunnel
Operation cost；
3) due to not needing axial flow blower, produce, reduced for tunnel so the running of the device is noiseless
The influence of interior driving personnel, adds the comfort level of driving, and reduces the noise pollution outside for vertical shaft.
Claims (9)
1. a kind of tunnel shaft ventilation unit based on heat power self-circulation system, it is characterised in that including being arranged on tunnel (1)
The vertical shaft (3) of side, the vertical shaft (3) is connected by transversal ventilation road (2) with tunnel (1), the top exit of the vertical shaft (3)
It is arranged on to be provided with the massif surface where tunnel (1), the vertical shaft (3) and the temperature of vertical shaft (3) interior gas can be improved, and
The heat power self-circulation system of negative pressuren zone is formed in vertical shaft (3), the heat power self-circulation system includes solar thermal collector
(12) and thermal cycle water pipe (7), the water inlet (5) of the delivery port of the solar thermal collector (12) and thermal cycle water pipe (7) is even
It is logical.
2. a kind of tunnel shaft ventilation unit based on heat power self-circulation system according to claim 1, its feature exists
In the delivery port (4) of the thermal cycle water pipe (7) is connected with self priming pump (8), the delivery port and solar energy of the self priming pump (8)
Water inlet (13) connection of heat collector (12).
3. a kind of tunnel shaft ventilation unit based on heat power self-circulation system according to claim 2, its feature exists
In being provided with the thermal cycle water pipe (7) for detecting the temperature sensor (16) of thermal cycle water pipe (7) temperature.
4. a kind of tunnel shaft ventilation unit based on heat power self-circulation system according to claim 2, its feature exists
In, in addition to the solar panel (9) powered for self priming pump (8).
5. a kind of tunnel shaft ventilation unit based on heat power self-circulation system according to claim 1, its feature exists
In, be provided between the solar thermal collector (12) and thermal cycle water pipe (7) insulation water storage box (10).
6. a kind of tunnel shaft ventilation unit based on heat power self-circulation system according to claim 1, its feature exists
In being provided with no-power air blower (18) at the top of the vertical shaft (3).
7. a kind of tunnel shaft ventilation unit based on heat power self-circulation system according to claim 1, its feature exists
In the thermal cycle water pipe (7) is arranged in the inwall of vertical shaft (3) with " S " type.
8. a kind of tunnel shaft ventilation unit based on heat power self-circulation system according to claim 1, its feature exists
In the direction of the transversal ventilation road (2) is diagonal upward direction, and the transversal ventilation road (2) and the interface position of vertical shaft (3) are high
In the interface position with tunnel (1).
9. a kind of tunnel shaft ventilation unit based on heat power self-circulation system according to claim 1, its feature exists
In the vertical shaft (3) is connected by transversal ventilation road (2) with two tunnels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720144932.2U CN206503614U (en) | 2017-02-17 | 2017-02-17 | A kind of tunnel shaft ventilation unit based on heat power self-circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720144932.2U CN206503614U (en) | 2017-02-17 | 2017-02-17 | A kind of tunnel shaft ventilation unit based on heat power self-circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206503614U true CN206503614U (en) | 2017-09-19 |
Family
ID=59833408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720144932.2U Expired - Fee Related CN206503614U (en) | 2017-02-17 | 2017-02-17 | A kind of tunnel shaft ventilation unit based on heat power self-circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206503614U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761881A (en) * | 2017-02-17 | 2017-05-31 | 长安大学 | A kind of tunnel shaft ventilation unit and method based on heat power self-circulation system |
| CN114738033A (en) * | 2022-05-10 | 2022-07-12 | 中铁八局集团第一工程有限公司 | Solar air pump tunnel ventilation system based on Internet of things and control method thereof |
-
2017
- 2017-02-17 CN CN201720144932.2U patent/CN206503614U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761881A (en) * | 2017-02-17 | 2017-05-31 | 长安大学 | A kind of tunnel shaft ventilation unit and method based on heat power self-circulation system |
| CN114738033A (en) * | 2022-05-10 | 2022-07-12 | 中铁八局集团第一工程有限公司 | Solar air pump tunnel ventilation system based on Internet of things and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205403040U (en) | Automatic catch wind type solar chimney system | |
| CN106761881A (en) | A kind of tunnel shaft ventilation unit and method based on heat power self-circulation system | |
| CN105604599B (en) | A kind of solar energy air pump self tunnel natural ventilation system and method | |
| CN101463801B (en) | Air-flow generating system and method | |
| CN207407532U (en) | A kind of electrical heating type solid heat storage device | |
| CN106857110A (en) | A kind of agricultural greenhouse plant seasonal comprehensive temperature control system and temperature control method | |
| CN206503614U (en) | A kind of tunnel shaft ventilation unit based on heat power self-circulation system | |
| CN104033985B (en) | A kind of ventilating system based on wind light mutual complementing technology | |
| CN107461850A (en) | A kind of common fief face centralization integrated heat supply refrigeration system of coal heat | |
| CN205036399U (en) | Heat transfer of mine return air is with diffusion tower | |
| CN204313447U (en) | Fresh air ventilator | |
| CN207130942U (en) | Double-layer ventilation formula glass curtain wall | |
| CN207214308U (en) | A kind of building enclosure based on soil source heat exchange | |
| CN105333546B (en) | A kind of refrigeration and heating system of double-layer residence | |
| CN106382672A (en) | Integrated type energy-storage circulating device | |
| CN209115110U (en) | Device for liaison tunnel vertical shaft air draft | |
| CN104501456B (en) | A kind of mine cooling and heating system | |
| CN202792323U (en) | Water cooling device | |
| CN103712472A (en) | Boosted air cooling tower | |
| CN203857595U (en) | Evaporative cooling air conditioner unit combining cooling and heating | |
| CN206176657U (en) | Underground space ventilation unit | |
| CN203892121U (en) | Solar hot-wind power generating set | |
| CN206176648U (en) | Underground space ventilation unit based on heat exchanger | |
| CN207905853U (en) | The system that reverse-flow mine return air directly heats fresh air | |
| CN103437964B (en) | Wind generating set engine room cooling heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170919 Termination date: 20180217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |