CN106801945A - Can rapid draing power station operate room air dehydrating unit - Google Patents
Can rapid draing power station operate room air dehydrating unit Download PDFInfo
- Publication number
- CN106801945A CN106801945A CN201510835199.4A CN201510835199A CN106801945A CN 106801945 A CN106801945 A CN 106801945A CN 201510835199 A CN201510835199 A CN 201510835199A CN 106801945 A CN106801945 A CN 106801945A
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- China
- Prior art keywords
- belt
- desiccant wheel
- metal tube
- wheel
- blower fan
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
- F24F2003/1464—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators using rotating regenerators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses can rapid draing power station operate room air dehydrating unit, including casing, blower fan, heater, desiccant wheel and regeneration blower fan are installed in casing, heater includes cylinder, heating wire, binding post and the metal tube of both ends open, multiple through holes are provided with cylinder, through hole is run through at the two ends of metal tube, insulator is filled between inner wall of metal tube and heating wire, the two ends of metal tube are provided with thermal insulation board, binding post is connected through thermal insulation board with heating wire, and belt bypasses belt wheel and tensile force adjusting mechanism is connected with desiccant wheel.After desiccant wheel works for a long time, belt tension reduces, the fluctuation of service of desiccant wheel and cause the effect on moisture extraction to reduce, now, the tensile force adjusting mechanism of setting can will cause the unbalance feedback of status of desiccant wheel work because belt tension is reduced in time, and the tensile force of belt is recovered in time, it is ensured that while the job stability of desiccant wheel, improve the dehumidification rate of runner.
Description
Technical field
The present invention relates to a kind of dehumidifier, specifically refer to can rapid draing power station operate the dehydrating unit of room air.
Background technology
Power station is the integration engineering facility that water energy is converted to electric energy, also known as hydroelectric power plant.It includes a series of structure of hydropower station and the various equipment for hydroelectric station of installing to be built using water energy production electric energy.The drop for concentrating natural current using these buildings forms head, collect, adjust the flow of natural current, and it is transferred into the hydraulic turbine, through the hydraulic turbine and the co-operation of generator, the water energy of concentration is converted into electric energy, then electric energy is input into power network through transformer, switchyard and transmission line of electricity etc..It is the turbine-generator units that the hydraulic turbine and hydrogenerator are constituted in conventional hydropower station and tidal power station, and attached speed regulator, oil gear, energizing apparatus etc.；The power-equipment of hydroenergy storage station is the pump-storage generator and its attached electric, plant equipment being made up of pump turbine and Hydraulic turbo-generator motor.The electric device in power station in addition to hydrogenerator and its auxiliary device, also including generator voltage controller switching equipment, step-up transformer, high voltage distribution installation and monitoring, control, measurement, signal and protectiveness electrical equipment etc..
Requirement of all kinds of electrical equipments to environment is higher in power station, and near power station is then steam clustering area, therefore needs to use dehumidification equipment in the back shop in power station.Dehumidifier is made up of compressor, heat exchanger, fan, water container, casing and controller, and its operation principle is：By fan by humid air suction machine, by heat exchanger, now the condensate moisture in air becomes outside dry air discharge machine into the globule, and so circulation reduces indoor humidity.In traditional dehumidifier, because the content of steam in working environment is higher, when heat exchange is carried out to air, the air erosion that is easily wet of heat exchanger is aoxidized, and is in turn resulted in heat exchanger and is damaged, and influences the normal work of electric equipments in hydroelectric station.
The content of the invention
It is an object of the invention to provide can rapid draing power station operate room air dehydrating unit, fast and easy to power station operation room in steam be purged, increase heater service life, improve dehumidification rate.
The purpose of the present invention is achieved through the following technical solutions：
Can rapid draing power station operate room air dehydrating unit,Including casing,Air inlet is provided with the housing,Motor,Air outlet,Regeneration air inlet and regeneration gas outlet,Blower fan is installed in the casing,Heater,Desiccant wheel and regeneration blower fan,One end of the blower fan connects with air inlet,The other end of blower fan is connected with air outlet,The output end of the motor is connected with belt wheel,The heater respectively with regeneration air inlet,Desiccant wheel is connected with one end of regeneration blower fan,The other end for regenerating blower fan is connected with regeneration gas outlet,The heater includes the cylinder of both ends open,Heating wire,Binding post and multiple being staggered are arranged on the metal tube of inner barrel,Multiple through holes are provided with the cylinder,Through hole is run through at the two ends of metal tube,Insulator is filled between inner wall of metal tube and heating wire,Heating wire is arranged in metal tube,The two ends of metal tube are provided with thermal insulation board,Binding post is connected through thermal insulation board with heating wire,Binding post is connected by wire with external power source；Tensile force adjusting mechanism is installed on the belt wheel, belt bypasses belt wheel and tensile force adjusting mechanism is connected with desiccant wheel；Also include aluminium bar, the bending two ends of the aluminium bar, heating wire winding is arranged on aluminium bar.
During present invention work, the cold air in operating room is entered into desiccant wheel by air inlet, and by the dehumidification treatments of desiccant wheel, air delivers to air outlet by blower fan, and finally dried air is discharged casing and back flows back into operating room；The desiccant wheel that the present invention is used is the dehumidifying section of main circulation on the market, the core component of the desiccant wheel is a cellular runner, runner is composited by ceramic fibre carrier and activated silica gel, runner includes the renewing zone of a quarter area of a circle and the treatment region of 3/4ths areas of a circle, humid air in operating room is processed in treatment region, desiccant wheel is driven slow rotation, and the steam that saturation is tended in treatment region enters into renewing zone；Fresh air is injected by regenerating air inlet, heater is heated to fresh air, heater includes the cylinder of both ends open, heating wire, binding post and multiple being staggered are arranged on the metal tube of inner barrel, enable in its working condition of the holding of heater long-time stable, without stopping heating because any one heating wire therein is impaired, multiple metal tubes are staggered setting, it is connected with external power source by binding post, guarantee is heated evenly by the fresh air of heater, the job stability of heater is also improved simultaneously, ensure that its permanent service life；Hot-air by desiccant wheel renewing zone, by the water desorption of the absorption in renewing zone, moisture is excluded operation outdoor in the presence of blower fan is regenerated so that desiccant wheel recovers the ability of moisture absorption and completes regenerative process, it is ensured that desiccant body keeps continual and steady wet-out property；After desiccant wheel works for a long time, belt tension reduces, the fluctuation of service of desiccant wheel and cause the effect on moisture extraction to reduce, now, the tensile force adjusting mechanism of setting can will cause the unbalance feedback of status of desiccant wheel work because belt tension is reduced in time, and the tensile force of belt is recovered in time, it is ensured that while the job stability of desiccant wheel, improve the dehumidification rate of runner.
The tensile force adjusting mechanism includes the roller with the tangent setting of belt wheel, the belt wheel, roller is connected with desiccant wheel by belt, pressure sensor is installed in the tangent of roller and belt, belt wheel is connected with roller by connecting rod, support is provided with casing, cylinder and multiple fixed pulleys are installed on support, pressure sensor is connected by wire with the drive device of cylinder, multiple fixed pulleys are symmetricly set in the both sides of cylinder output end, the rotating shaft two ends of the roller are connected with draught line, and draught line bypasses two fixed pulleys and the output end of cylinder forms assembly pulley.Motor drives desiccant wheel lentamente to rotate,Accelerate the discharge of the moisture in renewing zone,Installed in roller and belt the tangent pressure sensor by desiccant wheel with belt wheel normal rotation when belt pair roller on pressure value measure,After desiccant wheel works for a long time,Belt tension reduces,The fluctuation of service of desiccant wheel and cause the effect on moisture extraction to reduce,Now,The pressure value that pressure sensor is measured is less than the standard value for testing out before,Then pressure sensor controls the drive device of cylinder,The drive device includes air compressor machine,Air compressor machine is connected by wire with pressure sensor,The output end of cylinder is forward extended out,Under the adjustment effect that draught line changes force direction,Realize pullling for pair roller rotating shaft,And then cause that the tensile force of belt recovers again,Ensure the normal rotation of desiccant wheel and belt wheel,While fast and easy is purged to the steam in the operation room of power station,Improve the connective stability of desiccant wheel and motor,Ensure the dehumidification rate of desiccant wheel.
The connecting rod is elastoplast bar, and the two ends of institute's elastoplast bar are respectively sleeved in the rotating shaft of belt wheel and roller.To avoid roller from being moved with belt when rotating, with roller be connected belt wheel by connecting rod, and when cylinder output end pair roller carries out traction and pulls, using the connecting rod of flexible plastic material can produce miniature deformation to adapt to the movement of roller, while the beneficial support of guarantee roller.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention can rapid draing power station operate room air dehydrating unit, hot-air by desiccant wheel renewing zone, by the water desorption of the absorption in renewing zone, moisture is excluded operation outdoor in the presence of blower fan is regenerated, so that desiccant wheel recovers the ability of moisture absorption and completes regenerative process, it is ensured that desiccant body keeps continual and steady wet-out property；After desiccant wheel works for a long time, belt tension reduces, the fluctuation of service of desiccant wheel and cause the effect on moisture extraction to reduce, tensile force adjusting mechanism can will cause desiccant wheel to work unbalance feedback of status because belt tension is reduced in time, and in time recover the tensile force of belt；
2nd, the present invention can rapid draing power station operate room air dehydrating unit, the output end of cylinder is forward extended out, under the adjustment effect that draught line changes force direction, realize pullling for pair roller rotating shaft, and then cause that the tensile force of belt recovers again, it is ensured that the normal rotation of desiccant wheel and belt wheel, while fast and easy is purged to the steam in the operation room of power station, improve the connective stability of desiccant wheel and motor, it is ensured that the dehumidification rate of desiccant wheel；
3rd, the present invention can rapid draing power station operate the dehydrating unit of room air, when cylinder output end pair roller carries out traction and pulls, using the connecting rod of flexible plastic material can produce miniature deformation to adapt to the movement of roller, while ensureing the beneficial support of roller.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes the part of the application, does not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is structural representation of the invention；
Fig. 2 is partial enlarged drawing of the invention；
Fig. 3 is the sectional view of metal tube；
Fig. 4 is the structural representation of embodiment 2；
Mark and corresponding parts title in accompanying drawing：
1- casings, 2- air inlets, 3- air outlets, 4- regeneration air inlet, 5- regeneration gas outlet, 6- blower fans, 7- regeneration blower fan, 8- heaters, 9- desiccant wheels, 10- belts, 11- motors, 12- belt wheels, 13- connecting rods, 14- rollers, 15- draught lines, 16- fixed pulleys, 17- supports, 18- cylinders, 19- pressure sensors, 20- metal tubes, 21- thermal insulation boards, 22- heating wires, 23- binding posts, 24- insulators, 25- aluminium bars.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figures 1 to 4,The present invention can rapid draing power station operate room air dehydrating unit,Including casing 1,Air inlet 2 is provided with the casing 1,Air outlet 3,Regeneration air inlet 4 and regeneration gas outlet 5,Blower fan 6 is installed in the casing 1,Heater 8,Desiccant wheel 9 and regeneration blower fan 7,One end of the blower fan 6 connects with air inlet 2,The other end of blower fan 6 is connected with air outlet 3,The output end of the motor 11 is connected with belt wheel 12,The heater 8 respectively with regeneration air inlet 4,Desiccant wheel 9 is connected with one end of regeneration blower fan 7,The other end for regenerating blower fan 7 is connected with regeneration gas outlet 5,The heater 8 includes the cylinder of both ends open,Heating wire 22,Binding post 23 and multiple being staggered are arranged on the metal tube 20 of inner barrel,Multiple through holes are provided with the cylinder,Through hole is run through at the two ends of metal tube 20,Insulator 24 is filled between the inwall of metal tube 20 and heating wire 22,Heating wire 22 is arranged in metal tube 20,The two ends of metal tube 20 are provided with thermal insulation board 21,Binding post 23 is connected through thermal insulation board 21 with heating wire 22,Binding post 23 is connected by wire with external power source；Tensile force adjusting mechanism is installed on the belt wheel 12, belt 10 bypasses belt wheel 12 and tensile force adjusting mechanism and is connected with desiccant wheel 9；Also include aluminium bar 25, the bending two ends of the aluminium bar 25, the winding of heating wire 22 is arranged on aluminium bar 25.
During present invention work, the cold air in operating room is entered into desiccant wheel 9 by air inlet 2, and by the dehumidification treatments of desiccant wheel 9, air delivers to air outlet 3 by blower fan 6, and finally dried air is discharged casing 1 and back flows back into operating room；The desiccant wheel 9 that the present invention is used is the dehumidifying section of main circulation on the market, the core component of the desiccant wheel 9 is a cellular runner, runner is composited by ceramic fibre carrier and activated silica gel, runner includes the renewing zone of a quarter area of a circle and the treatment region of 3/4ths areas of a circle, humid air in operating room is processed in treatment region, desiccant wheel 9 is driven slow rotation, and the steam that saturation is tended in treatment region enters into renewing zone；Fresh air is injected by regenerating air inlet 4, heater 8 is heated to fresh air, heater 8 includes the cylinder of both ends open, heating wire 22, binding post 23 and multiple being staggered are arranged on the metal tube 20 of inner barrel, enable in its working condition of the holding of the long-time stable of heater 8, without stopping heating because any one heating wire 22 therein is impaired, multiple metal tubes 20 are staggered setting, it is connected with external power source by binding post 23, guarantee is heated evenly by the fresh air of heater 8, the job stability of heater 8 is also improved simultaneously, ensure that its permanent service life；Hot-air by desiccant wheel 9 renewing zone, by the water desorption of the absorption in renewing zone, moisture is excluded operation outdoor in the presence of blower fan 7 is regenerated so that desiccant wheel 9 recovers the ability of moisture absorption and completes regenerative process, it is ensured that desiccant body keeps continual and steady wet-out property；After desiccant wheel 9 for a long time work, the tensile force of belt 10 reduces, the fluctuation of service of desiccant wheel 9 and cause the effect on moisture extraction to reduce, now, the tensile force adjusting mechanism of setting can will cause desiccant wheel 9 to work unbalance feedback of status because of the reduction of the tensile force of belt 10 in time, and the tensile force of belt 10 is recovered in time, it is ensured that while the job stability of desiccant wheel 9, improve the dehumidification rate of runner.
Embodiment 2
As shown in Figure 2 and Figure 4, the present embodiment is on the basis of embodiment 1, with the roller 14 of the tangent setting of belt wheel 12, the belt wheel 12, roller 14 is connected with desiccant wheel 9 by belt 10, pressure sensor 19 is installed in the tangent of roller 14 and belt 10, belt wheel 12 is connected with roller 14 by connecting rod 13, support 17 is provided with casing, cylinder 18 and multiple fixed pulleys 16 are installed on support 17, pressure sensor 19 is connected by wire with the drive device of cylinder 18, multiple fixed pulleys 16 are symmetricly set in the both sides of the output end of cylinder 18, the rotating shaft two ends of the roller 14 are connected with draught line 15, and draught line 15 bypasses two fixed pulleys 16 and the output end of cylinder 18 forms assembly pulley.Motor 11 drives desiccant wheel 9 lentamente to rotate,Accelerate the discharge of the moisture in renewing zone,Installed in roller 14 and the tangent of belt 10 pressure sensor 19 by desiccant wheel 9 with 12 normal rotation of belt wheel when the pair roller 14 of belt 10 on pressure value measure,After desiccant wheel 9 for a long time work,The tension force of belt 10 reduces,The fluctuation of service of desiccant wheel 9 and cause the effect on moisture extraction to reduce,Now,The pressure value that pressure sensor 19 is measured is less than the standard value for testing out before,Then pressure sensor 19 controls the drive device of cylinder 18,The drive device includes air compressor machine,Air compressor machine is connected by wire with pressure sensor 19,The output end of cylinder 18 is forward extended out,Under the adjustment effect that draught line 15 changes force direction,Realize pullling for the rotating shaft of pair roller 14,And then cause that the tension force of belt 10 recovers again,Ensure the normal rotation of desiccant wheel 9 and belt wheel 12,While fast and easy is purged to the steam in the operation room of power station,Improve the connective stability of desiccant wheel 9 and motor 11,Ensure the dehumidification rate of desiccant wheel 9.
Embodiment 3
As shown in figure 4, the present embodiment is on the basis of embodiment 1, the connecting rod 13 is elastoplast bar, and the two ends of institute's elastoplast bar are respectively sleeved in the rotating shaft of belt wheel 12 and roller 14.To avoid roller 14 from being moved with belt 10 when rotating, with roller 14 be connected belt wheel 12 by connecting rod 13, when the output end pair roller 14 of cylinder 18 carries out traction and pulls, using the connecting rod 13 of flexible plastic material can produce miniature deformation to adapt to the movement of roller 14, while ensureing the beneficial support of roller 14.
Above-described specific embodiment; the purpose of the present invention, technical scheme and beneficial effect are further described; should be understood that; the foregoing is only specific embodiment of the invention; the protection domain being not intended to limit the present invention; all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc., should be included within the scope of the present invention.
Claims (3)
1. can rapid draing power station operate room air dehydrating unit, including casing, air inlet is provided with the housing, air outlet, motor, regeneration air inlet and regeneration gas outlet, blower fan is installed in the casing, heater, desiccant wheel and regeneration blower fan, one end of the blower fan connects with air inlet, the other end of blower fan is connected with air outlet, the heater respectively with regeneration air inlet, desiccant wheel is connected with one end of regeneration blower fan, the other end for regenerating blower fan is connected with regeneration gas outlet, the output end of the motor is connected with belt wheel, it is characterized in that：The heater includes that cylinder, heating wire, binding post and the multiple of both ends open are staggered and are arranged on the metal tube of inner barrel, multiple through holes are provided with the cylinder, through hole is run through at the two ends of metal tube, insulator is filled between inner wall of metal tube and heating wire, heating wire is arranged in metal tube, the two ends of metal tube are provided with thermal insulation board, and binding post is connected through thermal insulation board with heating wire, and binding post is connected by wire with external power source；Tensile force adjusting mechanism is installed on the belt wheel, belt bypasses belt wheel and tensile force adjusting mechanism is connected with desiccant wheel；Also include aluminium bar, the bending two ends of the aluminium bar, heating wire winding is arranged on aluminium bar.
2. it is according to claim 1 can rapid draing power station operate room air dehydrating unit, it is characterised in that：The tensile force adjusting mechanism includes the roller with the tangent setting of belt wheel, the belt wheel, roller is connected with desiccant wheel by belt, pressure sensor is installed in the tangent of roller and belt, belt wheel is connected with roller by connecting rod, support is provided with casing, cylinder and multiple fixed pulleys are installed on support, pressure sensor is connected by wire with the drive device of cylinder, multiple fixed pulleys are symmetricly set in the both sides of cylinder output end, the rotating shaft two ends of the roller are connected with draught line, and draught line bypasses two fixed pulleys and the output end of cylinder forms assembly pulley.
3. it is according to claim 2 can rapid draing power station operate room air dehydrating unit, it is characterised in that：The connecting rod is elastoplast bar, and the two ends of institute's elastoplast bar are respectively sleeved in the rotating shaft of belt wheel and roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835199.4A CN106801945A (en) | 2015-11-25 | 2015-11-25 | Can rapid draing power station operate room air dehydrating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835199.4A CN106801945A (en) | 2015-11-25 | 2015-11-25 | Can rapid draing power station operate room air dehydrating unit |
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| Publication Number | Publication Date |
|---|---|
| CN106801945A true CN106801945A (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510835199.4A Pending CN106801945A (en) | 2015-11-25 | 2015-11-25 | Can rapid draing power station operate room air dehydrating unit |
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| Country | Link |
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| CN (1) | CN106801945A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873519A (en) * | 2018-09-03 | 2020-03-10 | 广东美的白色家电技术创新中心有限公司 | Household drying box |
| CN117129040A (en) * | 2023-10-23 | 2023-11-28 | 西安绿环林业技术服务有限责任公司 | Ecological environment monitoring device for natural protection area |
-
2015
- 2015-11-25 CN CN201510835199.4A patent/CN106801945A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873519A (en) * | 2018-09-03 | 2020-03-10 | 广东美的白色家电技术创新中心有限公司 | Household drying box |
| CN110873519B (en) * | 2018-09-03 | 2021-02-23 | 广东美的白色家电技术创新中心有限公司 | Household drying box |
| CN117129040A (en) * | 2023-10-23 | 2023-11-28 | 西安绿环林业技术服务有限责任公司 | Ecological environment monitoring device for natural protection area |
| CN117129040B (en) * | 2023-10-23 | 2024-02-02 | 西安绿环林业技术服务有限责任公司 | Ecological environment monitoring device for natural protection area |
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Application publication date: 20170606 |
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