CN207395065U - A kind of buried bushing type turbulent flow device based on air dielectric - Google Patents
A kind of buried bushing type turbulent flow device based on air dielectric Download PDFInfo
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- CN207395065U CN207395065U CN201721414245.4U CN201721414245U CN207395065U CN 207395065 U CN207395065 U CN 207395065U CN 201721414245 U CN201721414245 U CN 201721414245U CN 207395065 U CN207395065 U CN 207395065U
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Abstract
The utility model discloses a kind of buried bushing type turbulent flow devices based on air dielectric, belong to energy conservation and environmental protection field.The device includes interior heat-insulated pipe, outer heat exchanger tube, for being embedded in the bottom of 10 meters 100 meters of underground connection chamber, and the outer diameter of interior heat-insulated pipe is less than the internal diameter of outer heat exchanger tube；Interior heat-insulated pipe including inner tube upper end, the inner tube that with inner tube upper end is connected ground lower end, outer heat exchanger tube upper end, the outer tube that upper end is connected with outer tube ground lower end including outer tube, heat exchanging chamber is connected with outer heat exchanger tube and forms the tube body of one end open, inner tube ground lower end with being located at outer tube lower end inside is provided with turbulent structure in the interlayer between interior heat-insulated pipe and outer heat exchanger tube.The utility model sets turbulent structure in the interlayer between interior heat-insulated pipe and outer heat exchanger tube, makes air sufficient heat exchange in cavity to obtain higher heat exchange efficiency.By using the structure, under the conditions of identical intake air temperature and air mass flow, air outlet temperature can be reduced by 1 ~ 3 DEG C by summer, have further energy-saving effect.
Description
Technical field
It, especially can field of heat exchange, specially a kind of ground based on air dielectric the present invention relates to energy conservation and environmental protection field
Bushing burying formula turbulent flow device.
Background technology
Public mobile communication base station is a kind of form of radio station, is referred in certain area of radio coverage, is led to
Mobile switching center is crossed, believes radio station into the transceiving that row information is transferred between mobile telephone terminal.Mobile communication
The construction of base station is the pith of mobile communication carrier of China investment, and the construction of mobile communication base station is typically all to surround to cover
The elements such as capping, speech quality, returns of investment, construction difficulty or ease, easy to maintain carry out.Wherein, the communication base station of base station usually divides
For two classes, a kind of is the macro station for being placed in computer room several communication equipments and ups power supplys；A kind of is built-in device and ups power supplys
The integration station of outdoor cabinet.
And China's major part communication base station is all on the high mountain built outdoors, particularly in summer, outdoor temperature height is led
The computer room temperature for causing storage equipment in base station is also very high, is all to be cooled down to computer room using air-conditioning according to consistent mode,
To equipment region temperature control below 45 DEG C, to ups power supply areas temperature requirements below 30 DEG C.Under normal circumstances, macro station computer room
One to three air-conditionings are configured as the case may be, and above-mentioned temperature requirements are completed in computer room；In integration station, equipment cabinet passes through interior
Exogenous wind independent loops structure carries out refrigeration in cabinet using forced heat-exchanging mode, ensures 45 DEG C of ＜ in equipment cabinet, the machine of the power supply containing ups
Cabinet configuration machine cabinet air-conditioner ensures 30 DEG C of ＜ in power supply cabinet.This pattern is all being used in various base station machine rooms all the time,
But the maintenance cost of air-conditioning and operating cost are very high, the electricity charge of the consumption of air-conditioning system 1 year account for the total power consumption in base station 30% ~
60%, and the maintenance and repair expense of upper air-conditioning is not included also.Therefore for entire base station system, not only maintenance and repair is costly,
And the substantial amounts of energy of consumption.
For this purpose, applicant asks to provide a kind of buried bushing type turbulent flow device based on air dielectric.
The content of the invention
The goal of the invention of the present invention is：In view of the above problems, a kind of buried set based on air dielectric is provided
Tubular type turbulent flow device.The present invention is by the use of 20 DEG C of thermostatic characteristics of underground itself as heat exchange source, it is only necessary to be provided using wind turbine
Power from region, the influence of time, has preferable energy-saving effect and adaptability.The present invention is in order to obtain temperature more
Suitable gas set turbulent structure in the interlayer between interior heat-insulated pipe and outer heat exchanger tube, increase and enter between gas and soil
Heat exchanger effectiveness, extend swap time.By using the structure, under the conditions of identical intake air temperature and air mass flow, summer
Air outlet temperature can be reduced by 3 ~ 5 DEG C or more by season, have extremely significant energy-saving effect.Meanwhile for extremely frigid zones, the present invention
The super low energy consumption constant temperature effect in 20 DEG C of ± 10 sections can also be provided.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of buried bushing type turbulent flow device based on air dielectric, including interior heat-insulated pipe, outer heat exchanger tube, is embedded in underground 10
The bottom connection chamber of -100 meters of rice, the outer diameter of the interior heat-insulated pipe are less than the internal diameter of outer heat exchanger tube；
The interior heat-insulated pipe include for the inner tube that is connected with treating heat transmission equipment upper end, in inner tube upper end is connected
Pipe ground lower end, the outer heat exchanger tube with including the outer tube being connected with recuperated gas upper end, with outer tube upper end be connected outside
Pipe ground lower end, the ring cavity between the interior heat-insulated pipe and outer heat exchanger tube can pass through heat exchanging chamber and be carried out with soil for heat exchanging chamber and gas
Heat exchange, said inner tube lower end with being located at outer tube lower end inside and through bottom connection chamber exchange heat after gas can pass through interior heat-insulated pipe
Outflow；
Turbulent structure is provided in interlayer between the interior heat-insulated pipe and outer heat exchanger tube.
The turbulent structure is one kind of turbulent muscle, convex closure or recessed bag；
Or interior adiabatic pipe outer wall is provided with line from bottom to top, to form turbulent structure.
It is set on the line jagged.
The line is prepared using metal or plastics or rubber.
The interior adiabatic pipe outer wall is provided with insulating layer, and the turbulent structure is arranged on insulating layer.
The heat exchanging chamber, bottom connection chamber, interior heat-insulated pipe are sequentially communicated to form gas passage, are set on the gas passage
It is useful for the wind turbine that drive gas flow is moved.
It further includes the drainage arrangement being connected with bottom connection chamber and bottom can be connected the water discharge of intracavitary by drainage arrangement.
The drainage arrangement includes the drainpipe, the water pump that are connected with bottom connection chamber, and the water outlet of the drainpipe is set
On the ground, and water pump is arranged on drainpipe one end.
Water level measurement device, control system are further included, the water level measurement device is arranged on bottom connection intracavitary, the water
Position-finding device, water pump are connected respectively with control system, and bottom can be connected the water level information of intracavitary by the water level measurement device
Pass to control system；When the water level of bottom connection intracavitary attains to a high place setting value, control system starts water pump and draws water；
When the water level in heat exchanging chamber reaches low level setting value, control system switches off the pump, and stops pumping.
The pipeline being connected with water level measurement device is wrapped in interior adiabatic pipe outer wall, forms turbulent structure；
Or drainpipe is wrapped in interior adiabatic pipe outer wall, forms turbulent structure；
Or water pump sets bottom connection intracavitary, the cable winds being connected with water pump inside tie by adiabatic pipe outer wall, formation turbulent flow
Structure.
For foregoing problems, the present invention provides a kind of buried bushing type turbulent flow device based on air dielectric, including in
Heat-insulated pipe, outer heat exchanger tube, bottom connection chamber.During installation, bottom connection chamber is embedded in underground 10-100 meters.The outer diameter of interior heat-insulated pipe is small
In the internal diameter of outer heat exchanger tube, and in ensureing heat-insulated pipe air mass flow and air mass flow in ring cavity uniformity, interior heat-insulated pipe includes
For the inner tube that is connected with treating heat transmission equipment upper end, the inner tube that with inner tube upper end is connected lower end, outer heat exchanger tube include using
Upper end, the outer tube that upper end is connected with outer tube ground lower end, interior heat-insulated pipe and outer heat exchanger tube in the outer tube being connected with recuperated gas
Between ring cavity exchanged heat for heat exchanging chamber and gas by heat exchanging chamber and soil.During the arrangement works, gas passes through outer heat exchange
Pipe is downwardly into heat exchanging chamber, in the process, is carried out heat exchange with soil, is realized the cooling to gas.Gas after cooling
It is discharged through interior heat-insulated pipe, and corresponding equipment or space is adjusted into trip temperature.Applicant in summer in practice, it has been found that transport
During row, in order to obtain the cooling gas of lower temperature, it usually needs increase air inflow, and the increase of air inflow can bring wind turbine energy
The rising of consumption；It although using which, is still adjusted compared with the prior art using air-conditioning into trip temperature, there is extremely significant section
Energy effect, but how energy consumption is further reduced, it is still the target of applicant's unremitting effort pursuit.It is for this purpose, exhausted including the present invention
Turbulent structure is set in interlayer between heat pipe and outer heat exchanger tube；By the setting of turbulent structure, increase into gas and soil
Between heat exchanger effectiveness, extend swap time.By using the structure, in identical intake air temperature and air mass flow condition
Under, air outlet temperature can be reduced by 3 ~ 5 DEG C or more by summer；And when less than 0 DEG C of outdoor works in winter, air outlet temperature can be carried
2 ~ 4 DEG C or more are risen, there is extremely significant energy-saving effect.Further, turbulent structure of the invention is turbulent muscle, convex closure or recessed bag
One kind.In order to simplify turbulent structure, convenient for the maintenance of turbulent structure, production, maintenance cost are reduced, applicant is in interior heat-insulated pipe
Outer wall is provided with line from bottom to top, to form turbulent structure.By setting several lines, so as to form several in interlayer
Small turbulent structure achievees the purpose that improve heat exchange efficiency.When it is installed, connect single line in the bottom of interlayer first, then
Line moves the top of device to, you can.
It is set on line jagged；Further, line can be metal wire, and set burr over the metal lines.Pass through burr knot
The design of structure increases turbulent flow effect.
Interior heat-insulated pipe is prepared using heat-insulating material, and outer heat exchanger tube, heat exchanging chamber are formed using metal heat-exchange material preparation.
Further, interior adiabatic pipe outer wall is provided with insulating layer, and turbulent structure is arranged on insulating layer.By the setting of turbulent structure, from
And make gas mixing more uniform.Structure-based improvement so that the gas temperature of the heat-insulated pipe port of export can maintain in the present invention
Between 20 ~ 25 DEG C.
Further, the ground upper end of interior heat-insulated pipe, outer heat exchanger tube（That is inner tube ground upper end, outer tube ground upper end）It is additionally provided with corresponding
Insulation construction.By the setting of insulation construction, the heat exchange between the present invention and external environment can be reduced, improves heat exchange effect
Rate.
Heat exchanging chamber, bottom connection chamber, interior heat-insulated pipe are sequentially communicated to form gas passage, are provided with to drive on gas passage
The ternary flow fan of body of taking offence flowing.By wind turbine, can drive gas flow move；It, can by the control to wind turbine intake
The air outlet temperature of interior heat-insulated pipe is made to control between 20 ~ 25 DEG C.Further, two Fans are configured in set of device；Usually one
With a standby working method, after a wind turbine damages, another carries out linkage start, to ensure the lasting and steady of device work
It is fixed, and client is notified to carry out maintenance, cooling effect is effectively ensured.Two Fans will start simultaneously in extreme case, be to enhance
The heat exchange of system and temperature control effect.
It is influenced be subject to air pressure and temperature, the moisture in gas can be condensed into droplet and drop to bottom connection intracavitary.For this purpose,
The present invention sets the drainage arrangement being connected with bottom connection chamber, and the water that bottom can be connected to intracavitary condensation by drainage arrangement is arranged
Go out.Further, drainage arrangement includes the drainpipe, the water pump that are connected with bottom connection chamber；The water outlet of drainpipe is arranged on ground
On, the other end is connected with bottom connection chamber；Water pump is arranged on drainpipe, and power is provided for drainpipe.Further, use is further included
In the supporting mechanism that internal heat-insulated pipe is supported.In the structure, the condensed water that hot-air generates in hoistway cooling procedure will
Can level measuring and self-draining arrangement be installed in shaft bottom ponding, system.In order to further reduce the energy consumption of water pump, this hair
It is bright to further include water level measurement device, control system.Water level measurement device is arranged at bottom connection intracavitary, and bottom can be connected
The water level of intracavitary is measured；Wherein, water level measurement device, water pump are connected respectively with control system, and water level measurement device can incite somebody to action
The water level information of bottom connection intracavitary passes to control system, and the control system then water level based on measure controls water pump；
When the water level of bottom connection intracavitary attains to a high place setting value, control system starts water pump and draws water；When bottom connects intracavitary
Water level when reaching low level setting value, control system switches off the pump, and stops pumping.Using which, device both can guarantee
Normal operation, and water pump is caused using variable frequency work, effectively to reduce pump energy consumption.
It is different from the ground energy heat exchange structure based on water source medium, the present invention provides a kind of new based on the buried of air dielectric
Casing type heat exchanging device, by the use of 20 DEG C of thermostatic characteristics of underground itself as low-temperature receiver, it is only necessary to provide power using wind turbine
, from region, the influence of time, practical performance and effect are further improved in terms of itself energy consumption index and construction cost
Fruit has well adapting to property and application prospect, is worth large-scale promotion and application.
The present invention provides a kind of new buried bushing type turbulent flow device based on air dielectric, utilizes underground itself
20 DEG C of thermostatic characteristics as source, it is only necessary to using wind turbine provide power, from region, the influence of time, in itself energy
Practical performance and effect are further improved in terms of consumption index and construction cost, there is well adapting to property and application prospect, value
Obtain large-scale promotion and application.
It is improved based on said structure so that structure of the invention is extremely simple, more easily safeguards.In the present invention, only
Wind turbine can consume power supply so that the maintenance cost of equipment is greatly reduced, and operating cost is greatly decreased, and has high economic valency
Value.
Under normal conditions, it is necessary to be separately provided two independent pipelines, it is necessary to make a call to two different wells towards underground respectively, with
Realize the installation of pipeline and the conveying respectively of cold wind and hot wind.And in the present invention, using internal and external casing structure, it is only necessary to be beaten towards underground
A well realizes the installation of two pipelines, equipment installation cost is greatly reduced.Further, since using internal and external casing structure,
Contact of the interior heat-insulated pipe with external environment is effectively reduced, reduces the possibility of its corrosion, is conducive to extend interior heat-insulated pipe
Service life.
Under normal conditions, it is desirable that the confined space of the battery in computer room needs to control below 30 DEG C.Through practical measurement, adopt
With the present invention, the temperature in confined space can be maintained at 28 DEG C, can effectively ensure that the normal operation of equipment；The electric energy of summer
Consumption is reduced to less than the 5% of existing air conditioner refrigerating, and summer energy consumption comparison is more obvious.And in extremely frigid zones, outdoor temperature is led to
Often below 0 DEG C or even down to -20 DEG C or so, and based on the present invention, it is capable of providing ultralow in 20 DEG C of ± 10 DEG C of interval ranges
Energy consumption constant temperature effect.Meanwhile using the present invention, under the conditions of identical intake air temperature and air mass flow, summer can be by outlet
Temperature reduces by 3 ~ 5 DEG C or more, has extremely significant energy-saving effect.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
It is marked in figure：1st, bottom connection chamber, 2, inner tube ground upper end, 3, inner tube ground lower end, 4, outer tube ground upper end, 5, outer tube
Lower end, 6, spiral shape protrusion, 7, ground, 9, water pump, 10, drainpipe.
Specific embodiment
All features or disclosed all methods disclosed in this specification or in the process the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification, unless specifically stated, can be equivalent by other or with similar purpose
Alternative features are replaced.I.e., unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
.
Embodiment 1
As shown in the figure, the device includes interior heat-insulated pipe, outer heat exchanger tube, is connected for being embedded in the bottom of 10 meters -100 meters of underground
Chamber, wind turbine；Wherein, the outer diameter of interior heat-insulated pipe is less than the internal diameter of outer heat exchanger tube.Interior heat-insulated pipe is included for treating heat transmission equipment phase
Inner tube even ground upper end, the inner tube that with inner tube upper end is connected ground lower end, outer heat exchanger tube with recuperated gas including for being connected
Outer tube upper end, the outer tube that upper end is connected with outer tube ground lower end, the ring cavity between interior heat-insulated pipe and outer heat exchanger tube be heat exchanging chamber
And gas can be exchanged heat by heat exchanging chamber and soil.Inner tube ground lower end with being located at outer tube lower end inside and after heat exchanging chamber exchanges heat
Gas can be flowed out by interior heat-insulated pipe, inner tube ground upper end upper end through outer tube.In the present embodiment, interior heat-insulated pipe and outer heat exchange
Turbulent structure is provided in interlayer between pipe；Turbulent muscle, convex closure or recessed bag can be selected in turbulent structure.It is interior exhausted in the present embodiment
Heat pipe is prepared using heat-insulating material, and outer heat exchanger tube, heat exchanging chamber are formed using metal heat-exchange material preparation.Further, the dress
In putting, interior thermal insulation pipe outer wall is provided with insulating layer, and spiral shape protrusion or fin are arranged on insulating layer；Inner tube ground upper end, outer tube
Ground upper end is respectively arranged with insulation construction.
Further, the present embodiment provides a kind of extremely simple turbulent structures of structure：Drawn in heat exchanging chamber a wires until
The top of outer heat exchanger tube is provided with several burrs on metal wire, forms the structure of similar hairbrush brush head.Using which, peace
Dress, maintenance, replacement cost are low.Meanwhile after measured, it is preferable using the turbulent air flow effect of the structure, there is higher energy saving valency
Value.
In the present embodiment, wind turbine is arranged on outer heat exchanger tube, and outer heat exchanger tube, bottom connection chamber, interior heat-insulated pipe are sequentially communicated
Form gas passage.
When the device is installed, heat exchanging chamber is embedded in 10 ~ 100 meters of underground, and outer heat exchanger tube is connected with recuperated gas, it is interior exhausted
Heat pipe is with treating that heat transmission equipment is connected.When the device works, gas is entered by outer heat exchanger tube in heat exchanging chamber to exchange heat with soil；
Gas after heat exchange is then arranged by interior heat-insulated pipe to heat transmission equipment is treated, realizes the heat exchange for treating heat transmission equipment.
When temperature is less than room temperature, moisture in air can natural condensation into droplet, particularly in summer, work as outside air temperature
It is higher, and during one low temperature of appearance, then just it is present with substantial amounts of droplet at low temperature.In the present embodiment, the water in air
Branch is condensed on tube wall, and is deposited on bottom connection intracavitary.For this purpose, in the present embodiment, further include and be connected with bottom connection chamber
Drainage arrangement.The drainage arrangement includes the drainpipe being connected with bottom connection chamber, water pump, water level measurement device, control system,
The water outlet of drainpipe is set on the ground, and the other end of drainpipe is connected with bottom connection chamber, and water pump is arranged on drainpipe.
Water level measurement device sets bottom to connect intracavitary, and water level measurement device, water pump are connected respectively with control system.The device of the invention
During work, the water level information in heat exchanging chamber can be passed to control system by water level measurement device, and control system is then based on measure
Water level controls water pump；When the water level in heat exchanging chamber, which attains to a high place, draws water setting value, control system starts water pump and carries out
It draws water, and passes through drainpipe and discharge water；When the water level arrival low level in heat exchanging chamber draws water setting value, control system closes water
Pump, stops pumping.
Through practical measurement, the Boiler pressure control in air passage was 300m3/h or so, in interior during use, the whole system of 1 year
Normal operation, the temperature for realizing device temperature in base station machine room are less than 35 DEG C, the stablizing effect of 28 DEG C of ups power supplys ＜, power consumption
Amount is only less than 5% before transforming, and maintenance cost, operation cost are greatly reduced, and has remarkable progress.
Alternatively, in the present embodiment, insulating layer is using the spiral wound for being arranged on interior adiabatic pipe outer wall
Line not only acts as insulation effect, and can play the role of making gas mixing in interlayer.
Further, in the present embodiment, the support being supported for internal heat-insulated pipe is provided in adiabatic pipe outer wall inside
Mechanism, supporting mechanism can ensure that the position of interior heat-insulated pipe does not deviate.
After measured, the present embodiment is less compared using turbulent structure using turbulent structure, in identical intake air temperature and stream
Under the conditions of amount, gas cooling effect promoting more than 20% can be had significant energy-saving effect by summer.
The invention is not limited in foregoing specific embodiments.The present invention, which expands to, any in the present specification to be disclosed
The step of new feature or any new combination and any new method or process disclosed or any new combination.
Claims (10)
1. a kind of buried bushing type turbulent flow device based on air dielectric, which is characterized in that including interior heat-insulated pipe, outer heat exchanger tube,
The bottom connection chamber of 10 meters -100 meters of underground is embedded in, the outer diameter of the interior heat-insulated pipe is less than the internal diameter of outer heat exchanger tube；
The interior heat-insulated pipe includes for the inner tube that is connected with treating heat transmission equipment upper end, the inner tube that with inner tube upper end is connected
Lower end, the outer heat exchanger tube include for the outer tube that is connected with recuperated gas upper end, the outer tube that upper end is connected with outer tube
Lower end, the ring cavity between the interior heat-insulated pipe and outer heat exchanger tube can be changed for heat exchanging chamber and gas by heat exchanging chamber and soil
Heat, said inner tube lower end with being located at outer tube lower end inside and through bottom connection chamber heat exchange after gas can pass through interior adiabatic flow in pip
Go out；
Turbulent structure is provided in interlayer between the interior heat-insulated pipe and outer heat exchanger tube.
2. the buried bushing type turbulent flow device based on air dielectric according to claim 1, which is characterized in that the turbulent flow knot
Structure is one kind of turbulent muscle, convex closure or recessed bag；
Or interior adiabatic pipe outer wall is provided with pipeline from bottom to top, to form turbulent structure.
3. the buried bushing type turbulent flow device based on air dielectric according to claim 2, which is characterized in that set on the line
It is equipped with burr.
4. the buried bushing type turbulent flow device based on air dielectric according to claim 2, which is characterized in that the line uses
Metal or plastics or rubber are prepared.
5. the buried bushing type turbulent flow device based on air dielectric according to claim any one of 1-4, which is characterized in that institute
It states interior adiabatic pipe outer wall and is provided with insulating layer, the turbulent structure is arranged on insulating layer.
6. the buried bushing type turbulent flow device based on air dielectric according to claim 1, which is characterized in that the heat exchange
Chamber, bottom connection chamber, interior heat-insulated pipe are sequentially communicated to form gas passage, are provided on the gas passage for drive gas flow
Dynamic wind turbine.
7. the buried bushing type turbulent flow device based on air dielectric according to claim 1-4,6 any one, which is characterized in that
It further includes the drainage arrangement being connected with bottom connection chamber and bottom can be connected the water discharge of intracavitary by drainage arrangement.
8. the buried bushing type turbulent flow device based on air dielectric according to claim 7, which is characterized in that the draining dress
Drainpipe, water pump including being connected with bottom connection chamber are put, the water outlet of the drainpipe is set on the ground, and water pump is set
In drainpipe one end.
9. the buried bushing type turbulent flow device based on air dielectric according to claim 8, which is characterized in that further include water level
Measurement device, control system, the water level measurement device are arranged on bottom connection intracavitary, the water level measurement device, water pump point
It is not connected with control system, the water level information that bottom can be connected intracavitary by the water level measurement device passes to control system；When
Bottom connection intracavitary water level attain to a high place setting value when, control system start water pump draw water；When the water level in heat exchanging chamber
When reaching low level setting value, control system switches off the pump, and stops pumping.
10. the buried bushing type turbulent flow device based on air dielectric according to claim 9, which is characterized in that surveyed with water level
Determine the pipeline that device is connected and be wrapped in interior adiabatic pipe outer wall, form turbulent structure；
Or drainpipe is wrapped in interior adiabatic pipe outer wall, forms turbulent structure；
Or water pump sets bottom to connect intracavitary, the cable winds being connected with water pump adiabatic pipe outer wall inside forms turbulent structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414245.4U CN207395065U (en) | 2017-10-30 | 2017-10-30 | A kind of buried bushing type turbulent flow device based on air dielectric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414245.4U CN207395065U (en) | 2017-10-30 | 2017-10-30 | A kind of buried bushing type turbulent flow device based on air dielectric |
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ID=62327162
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676903A (en) * | 2017-10-30 | 2018-02-09 | 四川联衡能源发展有限公司 | A kind of buried bushing type turbulent flow device based on air dielectric |
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2017
- 2017-10-30 CN CN201721414245.4U patent/CN207395065U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676903A (en) * | 2017-10-30 | 2018-02-09 | 四川联衡能源发展有限公司 | A kind of buried bushing type turbulent flow device based on air dielectric |
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Granted publication date: 20180522 Termination date: 20211030 |