CN107437455A - Pressure-relief valve for transformer rain cover and method - Google Patents
Pressure-relief valve for transformer rain cover and method Download PDFInfo
- Publication number
- CN107437455A CN107437455A CN201710652169.9A CN201710652169A CN107437455A CN 107437455 A CN107437455 A CN 107437455A CN 201710652169 A CN201710652169 A CN 201710652169A CN 107437455 A CN107437455 A CN 107437455A
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- China
- Prior art keywords
- humidity
- exoelectron
- processor
- hygrometer
- interior electronic
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to pressure-relief valve for transformer rain cover and method, and it includes connecting seat, be arranged on connecting seat and for shrouding the dome-type shell above pressure-relief valve for transformer, the heating coil being circumferentially positioned at dome-type shell lower port and control system；Control system includes power supply, the exoelectron thermometer for detection hemi-sphere type outer side temperature, the interior electronic thermometer for detection hemi-sphere type shell inner cavity temperature, the exoelectron hygrometer for detection hemi-sphere type outer side humidity, interior electronic moisture meter, processor and controller for detection hemi-sphere type shell inner cavity humidity；Power supply is used to power to control system；The present invention is reasonable in design, compact-sized and easy to use.
Description
Technical field
The present invention relates to pressure-relief valve for transformer rain cover and dampproof method.
Background technology
At present, the requirement produced according to lean：Should strengthen Buchholz relay, pressure relief valve, temperature meter base, oil stream after
The equipment rain-proof measure such as electrical equipment, the temperature meter base installed several years ago at present, pressure relief valve, oil flow relay etc. are almost without anti-
Canopy, it is therefore desirable to these positions are customized with special rain cover, so as to avoid electrical part moistureproof impaired.
The content of the invention
The technical problems to be solved by the invention are generally speaking to provide a kind of pressure-relief valve for transformer rain cover and prevented
Humidifying method；The technical problem and acquirement beneficial effect solved in detail content in aftermentioned content and combination embodiment
Specifically describe.
To solve the above problems, the technical solution used in the present invention is：
A kind of pressure-relief valve for transformer rain cover, including connecting seat, be arranged on connecting seat and for shrouding in transformer pressure
Dome-type shell above power relief valve, the heating coil being circumferentially positioned at dome-type shell lower port and control system；
Control system includes power supply, the exoelectron thermometer for detection hemi-sphere type outer side temperature, for detection hemi-sphere type
The interior electronic thermometer of shell inner cavity temperature, the exoelectron hygrometer for detection hemi-sphere type outer side humidity, for detecting
Interior electronic moisture meter, processor and the controller of dome-type shell inner cavity humidity；
Power supply is used to power to control system；
Exoelectron thermometer, interior electronic thermometer, exoelectron hygrometer and interior electronic moisture meter are electrically connected with processor respectively
Connect, processor is electrically connected with the controller, and controller is used for the break-make for controlling heating coil.So as to realize protection against the tide, rainwater-proof, improve
Device security, stability.
In order to provide moisture effect：Present invention additionally comprises the skylight being arranged on dome-type shell, it is arranged on outside dome-type
In shell and for blowing the fan of pressure-relief valve for transformer, being arranged on the guide groove of skylight lower surface, be vertically arranged in hemisphere
The electric screw of type outer casing bottom and the roller being arranged on the nut seat of electric screw upper end；
Roller rolls in guide groove；
The motor of electric screw and the motor of fan are electrically connected with the controller respectively.Moisture is arranged by skylight by wind
Go out, realize drying process.
It is provided with above dome-type outer side for the photovoltaic panel to power source charges and/or power supply and external circuitses electricity
Connection.So as to ensure that power supply continued power is powered with energy-conservation.
Dome-type cover top portion is provided with capillary；Capillary midsection is provided with that n-type is curved, and the outlet of capillary is sharp mouth
Shape or the normally closed baffle plate unidirectionally opened downwards.The another innovative point of the present invention is：By designing n-type pipe, realization will accumulate in
The steam discharge at top, it is ingenious in design, by sharp mouth, ensure that steam unidirectionally discharges, normally closed setting, so as to ensure dome-type shell
A high pressure water proof inner chamber is thermally formed, avoids steam from entering in inner chamber, in case of heating, steam passes through hair in inner chamber
Tubule discharge condensation, because caliber is thin, and opening will not have much impact under to inner chamber high pressure, pass through tube wall attached water
Vapour, condensation is realized, after there is a certain amount of condensed water outlet, baffle plate realizes discharge, design is ingeniously by downward opening of conducting oneself with dignity
It is wonderful, it is unexpected.
The pressure-relief valve for transformer dampproof method of the present embodiment, by means of above-mentioned pressure-relief valve for transformer rain-proof
Cover；Comprise the following steps：
Step a：The maximum temperature and highest humidity of pressure-relief valve for transformer operation are set first；Then, exoelectron temperature
Degree meter and exoelectron hygrometer gather the humidity of air and temperature and are sent to processor respectively, while pass through interior electronic thermometer
Humidity in dome-type shell inner cavity and temperature are gathered respectively with interior electronic moisture meter and are sent to processor；
Step b：First, each humidity parameter and temperature parameter in processor receiving step a；According to following different situations, hold
Row different step：
Situation I, when exoelectron hygrometer detect atmospheric humidity be less than setting highest humidity, and interior electronic moisture meter detection
When humidity detects atmospheric humidity more than exoelectron hygrometer：
Perform step c：Processor starts the motor of electric screw and the motor of fan by controller, on electric screw nut seat
Rise driving skylight to open, until the humidity of interior electronic moisture meter detection is not more than exoelectron hygrometer；
Situation II, when exoelectron hygrometer detects that atmospheric humidity is more than the highest humidity of setting, and the detection of interior electronic moisture meter
Humidity when detecting atmospheric humidity less than exoelectron hygrometer：
Perform step d：Processor starts heating coil by controller and heated, and when interior electronic thermometer is higher than maximum temperature, stops
Only heat, be incubated, until the humidity of interior electronic moisture meter detection is not more than exoelectron hygrometer；
Situation III, when exoelectron hygrometer detects that atmospheric humidity is more than the highest humidity of setting, and the detection of interior electronic moisture meter
Humidity when detecting atmospheric humidity more than exoelectron hygrometer：
Perform step e：First, processor starts the motor of electric screw and the motor of fan, electric screw silk by controller
Female seat rises driving skylight, until the humidity of interior electronic moisture meter detection is not more than exoelectron hygrometer；Secondly, processor passes through
The motor of controller control fan stops, meanwhile, the motor of processor control electric screw rotates backward, electric screw nut seat
Decline driving skylight closure；Then, processor starts heating coil by controller and heated, when interior electronic thermometer is higher than highest
Temperature, stop heating, be incubated, until the humidity of interior electronic moisture meter detection is not more than exoelectron hygrometer；
Situation IV, when the atmospheric temperature of exoelectron thermometer detection is higher than maximum temperature, processor notice alarm module alarm is logical
Cross other cooling systems or fan carries out cooling processing.
Reasonable in design, clever structure of the invention, can meet the waterproof moisture-proof effect under different conditions, while ensured valve
Normal work, moistureproof relative to transmission seal, the present invention realizes protection against the tide simultaneously, is incubated, and cooling Multifunctional centralized is integrally formed, into
This is cheap.
Beneficial effects of the present invention not limited to this describes, and in order to preferably readily appreciate, enters in specific embodiment part
More detailed description is gone.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the control block diagram schematic diagram of the present invention.
Fig. 3 is the control flow schematic diagram of the present invention.
Wherein：1st, connecting seat；2nd, dome-type shell；3rd, skylight；4th, heating coil；5th, fan；6th, photovoltaic panel；7th, exoelectron
Thermometer；8th, interior electronic thermometer；9th, exoelectron hygrometer；10th, interior electronic moisture meter；11st, electric screw；12nd, guide groove；
13rd, roller；14th, processor；15th, controller；16th, capillary.
Embodiment
As Figure 1-3, the pressure-relief valve for transformer rain cover of the present embodiment, including connecting seat 1, it is arranged on connecting seat
On 1 and for shroud above pressure-relief valve for transformer dome-type shell 2, be circumferentially positioned at the lower port of dome-type shell 2
The heating coil 4 and control system at place；
Control system includes power supply, the exoelectron thermometer 7 for the temperature outside of detection hemi-sphere type shell 2, for detection hemi-sphere
The interior electronic thermometer 8 of the inner chamber temperature of type shell 2, the exoelectron hygrometer 9 for the outside humidity of detection hemi-sphere type shell 2, use
In the interior electronic moisture meter 10, processor 14 and controller 15 of the inner chamber humidity of detection hemi-sphere type shell 2；
Power supply is used to power to control system；
Exoelectron thermometer 7, interior electronic thermometer 8, exoelectron hygrometer 9 and interior electronic moisture meter 10 respectively with processor
14 electrical connections, processor 14 electrically connect with controller 15, and controller 15 is used for the break-make for controlling heating coil 4.It is anti-so as to realize
Tide, rainwater-proof, improve device security, stability.
In order to provide moisture effect：Present invention additionally comprises the skylight 3 being arranged on dome-type shell 2, it is arranged on dome-type
In shell 2 and for blowing the fan 5 of pressure-relief valve for transformer, being arranged on the guide groove 12 of the lower surface of skylight 3, be vertically arranged
Electric screw 11 and the roller 13 that is arranged on the upper end nut seat of electric screw 11 in the bottom of dome-type shell 2；
Roller 13 rolls in guide groove 12；
The motor of electric screw 11 and the motor of fan 5 electrically connect with controller 15 respectively.Moisture is passed through by day by wind
Window is discharged, and realizes drying process.
It is provided with above the outside of dome-type shell 2 for the photovoltaic panel 6 and/or power supply and external circuitses to power source charges
Electrical connection.So as to ensure that power supply continued power is powered with energy-conservation.
The top of dome-type shell 2 is provided with capillary 16；The middle part of capillary 16 is provided with that n-type is curved, and capillary 16 goes out
The normally closed baffle plate that mouth is unidirectionally opened for sharp mouth shape or downwards.The another innovative point of the present invention is：By designing n-type pipe, realize
The steam discharge at top is will accumulate in, it is ingenious in design, by sharp mouth, ensure that steam unidirectionally discharges, normally closed setting, so as to ensure half
Ball-type shell 2 is thermally formed a high pressure water proof inner chamber, avoids steam from entering in inner chamber, in case of heating, in inner chamber
Steam is discharged by capillary and condensed, and because caliber is thin, and opening will not have much impact under to inner chamber high pressure, preferably
The internal diameter of capillary 16 is 0.5mm-1.5mm, adheres to steam by tube wall, condensation is realized, when there is a certain amount of condensed water outlet
Afterwards, baffle plate is opened downwards by conducting oneself with dignity, and realizes discharge, ingenious in design, unexpected.
The pressure-relief valve for transformer dampproof method of the present embodiment, by means of above-mentioned pressure-relief valve for transformer rain-proof
Cover；Comprise the following steps：
Step a：The maximum temperature and highest humidity of pressure-relief valve for transformer operation are set first；Then, exoelectron temperature
Degree meter 7 gather the humidity of air with exoelectron hygrometer 9 and temperature and is sent to processor 14 respectively, while passes through interior electronics temperature
Degree meter 8 gather humidity in the inner chamber of dome-type shell 2 and temperature with interior electronic moisture meter 10 and is sent to processor 14 respectively；
Step b：First, each humidity parameter and temperature parameter in the receiving step a of processor 14；According to following different situations,
Perform different step：
Situation I, when exoelectron hygrometer 9 detects that atmospheric humidity is less than the highest humidity of setting, and interior electronic moisture meter 10 is examined
When the humidity of survey detects atmospheric humidity more than exoelectron hygrometer 9：
Perform step c：Processor 14 starts the motor of the motor and fan 5 of electric screw 11, electric screw by controller 15
11 nut seats rise driving skylight 3 and opened, until the humidity of interior electronic moisture meter 10 detection is not more than exoelectron hygrometer 9；
Situation II, when exoelectron hygrometer 9 detects that atmospheric humidity is more than the highest humidity of setting, and interior electronic moisture meter 10 is examined
When the humidity of survey detects atmospheric humidity less than exoelectron hygrometer 9：
Perform step d：Processor 14 starts heating coil 4 by controller 15 and heated, when interior electronic thermometer 8 is higher than the highest temperature
Degree, stop heating, be incubated, until the humidity of interior electronic moisture meter 10 detection is not more than exoelectron hygrometer 9；
Situation III, when exoelectron hygrometer 9 detects that atmospheric humidity is more than the highest humidity of setting, and interior electronic moisture meter 10
When the humidity of detection detects atmospheric humidity more than exoelectron hygrometer 9：
Perform step e：First, processor 14 starts the motor of the motor and fan 5 of electric screw 11 by controller 15, electronic
The nut seat of screw rod 11 rises driving skylight 3, until the humidity of interior electronic moisture meter 10 detection is not more than exoelectron hygrometer 9；Its
Secondary, processor 14 controls the motor of fan 5 to stop by controller 15, meanwhile, processor 14 controls the motor of electric screw 11
Rotate backward, the nut seat of electric screw 11 declines driving skylight 3 and closed；Then, processor 14 is started by controller 15 and heated
Coil pipe 4 is heated, and when interior electronic thermometer 8 is higher than maximum temperature, stopping is heated, is incubated, until interior electronic moisture meter 10 is examined
The humidity of survey is not more than exoelectron hygrometer 9；
Situation IV, when the atmospheric temperature that exoelectron thermometer 7 detects is higher than maximum temperature, processor notice alarm module is alarmed,
Cooling processing is carried out by other cooling systems or fan.
Reasonable in design, clever structure of the invention, can meet the waterproof moisture-proof effect under different conditions, while ensured valve
Normal work, moistureproof relative to transmission seal, the present invention realizes protection against the tide simultaneously, is incubated, and cooling Multifunctional centralized is integrally formed, into
This is cheap.
Rain cover can protect pressure relief valve to intake, and prevent water entering accident from causing the malfunction and misaction of transformer.
A hemispheric rain cover is designed, can be when there is internal catastrophe failure in transformer, pressure relief valve can be just
Positive motion is made, and and can prevents pressure relief valve from intaking, causes the malfunction and misaction of transformer.
（1）This device must have higher rain proofness, can ensure comprehensive overburden pressure relief valve.
（2）Device volume is as far as possible compact, and diameter is no more than 200mm, and gross weight is no more than 2kg, is carried in order to install.
（3）Device requires fixation
After rain cover, the generation of the accident of pressure relief valve water inlet is effectively prevented, have received good effect.Can be
Promoted in transformer professional work, easy to operate, accuracy rate is high.
The present invention it is reasonable in design, cost is cheap, it is durable, safe and reliable, simple to operate, time saving and energy saving, save fund,
It is compact-sized and easy to use.
The present invention, which fully describes, to be disclosed in order to more clear, and is just no longer enumerated for prior art.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in previous embodiment, or equivalent substitution is carried out to which part technical characteristic；Make
It is obvious that multiple technical schemes of the present invention, which are combined, for those skilled in the art.And these are changed or replaced
Change, the essence of appropriate technical solution is departed from the spirit and scope of technical scheme of the embodiment of the present invention.
Claims (6)
- A kind of 1. pressure-relief valve for transformer rain cover, it is characterised in that：Including connecting seat (1), be arranged on connecting seat (1) and For shrouding the dome-type shell (2) above pressure-relief valve for transformer, being circumferentially positioned at dome-type shell (2) lower port Heating coil (4) and control system；Control system includes power supply, the exoelectron thermometer (7) for detection hemi-sphere type shell (2) temperature outside, for detecting The interior electronic thermometer (8) of dome-type shell (2) inner chamber temperature, the exoelectron for humidity on the outside of detection hemi-sphere type shell (2) Hygrometer (9), the interior electronic moisture meter (10) for detection hemi-sphere type shell (2) inner chamber humidity, processor (14) and control Device (15)；Power supply is used to power to control system；Exoelectron thermometer (7), interior electronic thermometer (8), exoelectron hygrometer (9) and interior electronic moisture meter (10) are respectively Electrically connected with processor (14), processor (14) electrically connects with controller (15), and controller (15) is used to control heating coil (4) Break-make.
- 2. pressure-relief valve for transformer rain cover according to claim 1, it is characterised in that:Also include being arranged on dome-type Skylight (3) on shell (2), be arranged in dome-type shell (2) and for blow pressure-relief valve for transformer fan (5), Be arranged on the guide groove (12) of skylight (3) lower surface, be vertically arranged in dome-type shell (2) bottom electric screw (11), with And it is arranged on the roller (13) on the nut seat of electric screw (11) upper end；Roller (13) rolls in guide groove (12)；The motor of electric screw (11) and the motor of fan (5) electrically connect with controller (15) respectively.
- 3. pressure-relief valve for transformer rain cover according to claim 2, it is characterised in that:In dome-type shell (2) outside It is provided with above side and is electrically connected for the photovoltaic panel (6) to power source charges and/or power supply with external circuitses.
- 4. pressure-relief valve for transformer rain cover according to claim 2, it is characterised in that:Pushed up in dome-type shell (2) Portion is provided with capillary（16）；Capillary（16）It is curved that middle part is provided with n-type, capillary（16）Outlet be sharp mouth shape or in capillary Pipe（16）Outlet be provided with normally closed baffle plate.
- 5. pressure-relief valve for transformer rain cover according to claim 4, it is characterised in that:Capillary（16）Internal diameter is 0.5mm-1.5mm。
- A kind of 6. pressure-relief valve for transformer dampproof method, it is characterised in that:By means of the change described in claim any one of 1-5 Depressor Rainproof shield of pressure release valve；Comprise the following steps：Step a：The maximum temperature and highest humidity of pressure-relief valve for transformer operation are set first；Then, exoelectron temperature Degree meter (7) and exoelectron hygrometer (9) gathers the humidity of air and temperature and are sent to processor (14) respectively, while by interior Electronic thermometer (8) gathers humidity in dome-type shell (2) inner chamber and temperature with interior electronic moisture meter (10) and sent respectively Give processor (14)；Step b：First, each humidity parameter and temperature parameter in processor (14) receiving step a；Do not sympathized with according to following Condition, perform different step：Situation I, when exoelectron hygrometer (9) detects that atmospheric humidity is less than the highest humidity of setting, and interior electronic moisture meter (10) when the humidity of detection detects atmospheric humidity more than exoelectron hygrometer (9)：Perform step c：Processor (14) starts the motor of the motor and fan (5) of electric screw (11) by controller (15), Electric screw (11) nut seat rises driving skylight (3) and opened, until the humidity of interior electronic moisture meter (10) detection is no more than outer Electronic moisture meter (9)；Situation II, when exoelectron hygrometer (9) detects that atmospheric humidity is more than the highest humidity of setting, and interior electronic moisture meter (10) when the humidity of detection detects atmospheric humidity less than exoelectron hygrometer (9)：Perform step d：Processor (14) starts heating coil (4) by controller (15) and heated, when interior electronic thermometer (8) is high In maximum temperature, stop heating, be incubated, until the humidity of interior electronic moisture meter (10) detection is not more than exoelectron hygrometer (9)；Situation III, when exoelectron hygrometer (9) detects that atmospheric humidity is more than the highest humidity of setting, and interior electronic moisture meter (10) when the humidity of detection detects atmospheric humidity more than exoelectron hygrometer (9)：Perform step e：First, processor (14) starts the motor and fan (5) of electric screw (11) by controller (15) Motor, electric screw (11) nut seat rise driving skylight (3), until the humidity of interior electronic moisture meter (10) detection is no more than outer Electronic moisture meter (9)；Secondly, processor (14) controls the motor of fan (5) to stop by controller (15), meanwhile, processor (14) motor of electric screw (11) is controlled to rotate backward, electric screw (11) nut seat declines driving skylight (3) closure；So Afterwards, processor (14) starts heating coil (4) by controller (15) and heated, when interior electronic thermometer (8) is higher than maximum temperature, Stop heating, be incubated, until the humidity of interior electronic moisture meter (10) detection is not more than exoelectron hygrometer (9)；Situation IV, when the atmospheric temperature of exoelectron thermometer (7) detection is higher than maximum temperature, processor notice alarm module report It is alert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710652169.9A CN107437455A (en) | 2017-08-02 | 2017-08-02 | Pressure-relief valve for transformer rain cover and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710652169.9A CN107437455A (en) | 2017-08-02 | 2017-08-02 | Pressure-relief valve for transformer rain cover and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107437455A true CN107437455A (en) | 2017-12-05 |
Family
ID=60459891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710652169.9A Pending CN107437455A (en) | 2017-08-02 | 2017-08-02 | Pressure-relief valve for transformer rain cover and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107437455A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579151A (en) * | 2020-05-21 | 2020-08-25 | 广东电网有限责任公司 | Rain-proof cover of SF6 manometer |
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|---|---|---|---|---|
| KR100810092B1 (en) * | 2007-10-04 | 2008-03-05 | 한선화 | A control device of temperature and humidity for distributing board |
| CN101166936A (en) * | 2005-03-09 | 2008-04-23 | 极乐株式会社 | Indoor temperature control system |
| CN103994256A (en) * | 2014-05-12 | 2014-08-20 | 昆山佑翔电子科技有限公司 | Pressure relief valve |
| CN203982946U (en) * | 2014-06-11 | 2014-12-03 | 国家电网公司 | Pressure-relief valve for transformer rain cover |
| CN204963905U (en) * | 2015-09-14 | 2016-01-13 | 安徽物溯信息科技有限公司 | Networking of agricultural thing is with big -arch shelter indoor environment detector |
| CN206165316U (en) * | 2016-11-07 | 2017-05-17 | 广东省现代农业装备研究所 | Skylight starting and stopping mechanism and warmhouse booth |
-
2017
- 2017-08-02 CN CN201710652169.9A patent/CN107437455A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166936A (en) * | 2005-03-09 | 2008-04-23 | 极乐株式会社 | Indoor temperature control system |
| KR100810092B1 (en) * | 2007-10-04 | 2008-03-05 | 한선화 | A control device of temperature and humidity for distributing board |
| CN103994256A (en) * | 2014-05-12 | 2014-08-20 | 昆山佑翔电子科技有限公司 | Pressure relief valve |
| CN203982946U (en) * | 2014-06-11 | 2014-12-03 | 国家电网公司 | Pressure-relief valve for transformer rain cover |
| CN204963905U (en) * | 2015-09-14 | 2016-01-13 | 安徽物溯信息科技有限公司 | Networking of agricultural thing is with big -arch shelter indoor environment detector |
| CN206165316U (en) * | 2016-11-07 | 2017-05-17 | 广东省现代农业装备研究所 | Skylight starting and stopping mechanism and warmhouse booth |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579151A (en) * | 2020-05-21 | 2020-08-25 | 广东电网有限责任公司 | Rain-proof cover of SF6 manometer |
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Application publication date: 20171205 |