CN207635920U - Energy storage system - Google Patents
Energy storage system Download PDFInfo
- Publication number
- CN207635920U CN207635920U CN201721407233.9U CN201721407233U CN207635920U CN 207635920 U CN207635920 U CN 207635920U CN 201721407233 U CN201721407233 U CN 201721407233U CN 207635920 U CN207635920 U CN 207635920U
- Authority
- CN
- China
- Prior art keywords
- water
- tank
- energy storage
- storage system
- communicating pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The utility model discloses a kind of energy storage systems, including system can host and at least two water tanks；The water tank includes tank deck, tank bottom and the tank skin being connected between the tank deck and the tank bottom；It is provided with upper water distributor and lower water-dispensing device in the water tank；At least one layer of insulating layer is provided on the outer surface of the tank skin；It is communicated with periodical feeding pipeline between the both ends of the energy host processed；Wherein, two upper water distributors of arbitrary neighborhood are connected to by the first communicating pipe, and every first communicating pipe passes through the first connecting tube and the periodical feeding pipeline connection；Two lower water-dispensing devices of arbitrary neighborhood are connected to by the second communicating pipe, and every second communicating pipe passes through the second connecting tube and the periodical feeding pipeline connection.Its energy storage and release process is simple, and energy storage and release works well, and heat insulation effect is good and easy for construction.
Description
Technical field
The utility model is related to indoor refrigeration, heating equipment technical field more particularly to a kind of energy storage systems.
Background technology
Air-conditioner energy-accumulation equipment in the prior art is generally made of system energy host and water tank.When it includes multiple water storages
When tank, the connection relation between multiple water tanks is to be connected in series with.
When letting cool or heat release, it usually needs after releasing the water in an energy storage tank, can just put in the second energy storage tank
Water.In accumulation of energy, the cold-storage or after the completion of accumulation of heat usually in an energy storage tank just carries out cold-storage or storage in next energy storage tank
Heat operation, energy storage and release complex procedures need to operate repeatedly, and the effect of energy storage and release is ideal not to the utmost.
In order to reduce the energy loss of energy storage tank, need to keep the temperature energy storage tank made of metal.It usually adopts in the prior art
The way kept the temperature inside energy storage tank causes construction inconvenient, and insulating layer is easily damaged by the erosion of water, service life
It is short.
Utility model content
The purpose of this utility model is to provide a kind of energy storage and release process is simple, energy storage and release works well, and protects
The good and easy for construction energy storage system of temp effect.
Technical solutions of the utility model provide a kind of energy storage system, including system can host and at least two water tanks；
The water tank includes tank deck, tank bottom and the tank skin being connected between the tank deck and the tank bottom；
It is provided with upper water distributor and lower water-dispensing device in the water tank；
At least one layer of insulating layer is provided on the outer surface of the tank skin；
It is communicated with periodical feeding pipeline between the both ends of the energy host processed；
Wherein, two upper water distributors of arbitrary neighborhood are connected to by the first communicating pipe, and every first communicating pipe is logical
Cross the first connecting tube and the periodical feeding pipeline connection；
Two lower water-dispensing devices of arbitrary neighborhood are connected to by the second communicating pipe, and every second communicating pipe passes through second
Connecting tube and the periodical feeding pipeline connection.
Further, at least one layer of exterior trimming parts is provided on the outer surface of the insulating layer；
It is provided with heat insulating element between the tank skin and the exterior trimming parts；
The exterior trimming parts is connect by the heat insulating element with the tank skin.
Further, one end of the heat insulating element is connect by the first connector with the tank skin, and the other end passes through
Second connector is connect with the exterior trimming parts.
Further, binding piece has also been tied up on the outer surface of the exterior trimming parts.
Further, it is arranged on the outer surface of the exterior trimming parts fluted, the binding piece is embedded in the groove.
Further, the heat insulating element is wooden unit or unit of plastic.
Further, the both sides positioned at first connecting tube on the first communicating pipe are respectively arranged at least one first
Water pump, the both sides positioned at second connecting tube on the second communicating pipe are respectively arranged at least second water pump.
Further, the level sensor for detection of liquid level is both provided in each water tank.
Further, which further includes control device, and the control device includes master controller and the master control
The comparator of device communication connection processed；
Each level sensor is communicated to connect with the master controller respectively；
First water pump and second water pump are respectively variable frequency pump；
In every variable frequency pump all have frequency-variable controller, every frequency-variable controller respectively with the main control
Device communicates to connect.
Further, the control device further includes attention device, display and operation panel, the attention device, described aobvious
Show that device and the operation panel are communicated to connect with the master controller respectively.
Using above-mentioned technical proposal, have the advantages that：
By the way that the upper water distributor in two or more water tanks is connected, by the lower water-dispensing device in two or more water tanks
Two water tanks are connected in parallel on periodical feeding pipeline by series connection to realize, can simultaneously to two or more water tank accumulation of energys,
Can also release simultaneously two or more water tanks can so that and it is easy to operate, and the energy that energy is released in accumulation of energy is improved, effect is good
It is good.
By the way that insulating layer is arranged on the outer surface of tank skin, facilitates construction, improve work efficiency, and avoid insulating layer
By water erosion, service life is extended.
Description of the drawings
Fig. 1 is the schematic diagram for the energy storage system that one embodiment of the utility model provides；
Fig. 2 is the structural schematic diagram of energy storage tank；
Fig. 3 be energy storage tank tank skin on be provided with the partial enlarged view of insulating layer and exterior trimming parts；
Fig. 4 is that binding piece is embedded in the schematic diagram in groove；
The schematic diagram of Fig. 5 devices in order to control.
Specific implementation mode
Further illustrate specific embodiment of the present utility model below in conjunction with the accompanying drawings.Wherein identical parts phase
Same reference numeral indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper" and
"lower" refers to that the direction in attached drawing, word "inner" and "outside" refer respectively to the side towards or away from geometric center of specific component
To.
As shown in Figs. 1-2, the energy storage system that one embodiment of the utility model provides, including system can hosts 1 and at least two
Water tank 2.
Water tank 2 includes tank deck 24, tank bottom 25 and the tank skin 26 being connected between tank deck 24 and tank bottom 25.
Upper water distributor 21 and lower water-dispensing device 22 are provided in water tank 2.It is provided at least on the outer surface of tank skin 26
One layer of heat preservation layer 27.
System can be communicated with periodical feeding pipeline 11 between the both ends of host 1.
Wherein, two upper water distributors 21 of arbitrary neighborhood are connected to by the first communicating pipe 3, and every first communicating pipe 3 passes through
One connecting tube 5 is connected to periodical feeding pipeline 11.
Two lower water-dispensing devices 22 of arbitrary neighborhood are connected to by the second communicating pipe 4, and every second communicating pipe 4 passes through the second connection
Pipe 6 is connected to periodical feeding pipeline 11.
The density of cold water is more than the density of hot water, and cold water enters in water tank 2 from lower water-dispensing device 22 and carries out under normal circumstances
Cold-storage, or be extracted from lower water-dispensing device 22 release it is cold；Hot water enters from upper water distributor 21 carries out accumulation of heat in water tank 2, or
Carry out heat release is extracted from upper water distributor 21.Above-mentioned cold-storage, accumulation of heat can be described as accumulation of energy, release cold, heat release and can be described as releasing energy.
By will connect by the first communicating pipe 3 between adjacent upper water distributor 21, the first communicating pipe 3 was then passed through
One connecting tube 5 is connected to periodical feeding pipeline 11, will be connected by the second communicating pipe 4 between adjacent lower water-dispensing device 22, then
Second communicating pipe 4 was connected to by the second connecting tube 6 with periodical feeding pipeline 11, to realize two or more water tanks 2
It is connected in parallel on periodical feeding pipeline 11, can be simultaneously to 2 accumulation of energy of two or more water tanks, it can also be simultaneously to two or more
Water tank 2 is released can so that and it is easy to operate, and improve the energy that energy is released in accumulation of energy.
Water pump can be set on periodical feeding pipeline 11, for supplying water, can be correspondingly provided in every pipeline
Valve is used for control piper break-make, and details are not described herein.
It is kept the temperature to realize, insulating layer 27 is provided on the outer surface of tank skin 26, plays heat insulation effect, facilitates construction,
It avoids insulating layer by water erosion, extends service life.
Insulating layer 27 by polyamide foam or polyethylene high-foaming thermal insulation material or polystyrene foam plastics, or
Rubber is made, or other thermal insulation materials are made.
Preferably, as in Figure 2-4, at least one layer of exterior trimming parts 28 is provided on the outer surface of insulating layer 27.
Heat insulating element 8 is provided between tank skin 26 and exterior trimming parts 28, exterior trimming parts 28 is connected by heat insulating element 8 and tank skin 26
It connects.
Exterior trimming parts 28 is decorative panel, is coated on the outer surface of insulating layer 27, on the one hand plays protection insulating layer
On the other hand 27 effect is played the role of fixing and supporting insulating layer 27.
In order to realize the fixation of exterior trimming parts 28, need exterior trimming parts 28 connecting with tank skin 26, if using heat conducting element connected
It connects, then the energy in water tank can be lost in through heat conducting element, therefore exterior trimming parts 28 is connect by heat insulating element 8 with tank skin 26.
The thermal coefficient of heat insulating element 8 is relatively low, can effectively reduce energy loss.
Heat insulating element 8 is located in insulating layer 27, and heat insulating element 8 plays the role of blocking energy transmission, avoids energy loss,
Further improve heat insulation effect.
Preferably, as shown in figure 3, one end of heat insulating element 8 is connect by the first connector 81 with tank skin 26, the other end
It is connect with exterior trimming parts 28 by the second connector 82.First connector 81 and the second connector 82 can all be metal connecting piece,
Connective stability can be increased.Since the thermal coefficient of heat insulating element 8 is relatively low, even if being connected using metalwork, due to
A certain distance is spaced between first connector 81 and the second connector 82, cold does not still have larger loss.
Preferably, as shown in Figure 2 and Figure 4, binding piece 9 has also been tied up on the outer surface of exterior trimming parts 28.Binding piece 9 is tied up
In the periphery of exterior trimming parts 28, plays the role of tightening exterior trimming parts 28, reinforce the company between insulating layer 27, exterior trimming parts 28 and tank skin 26
It connects.
Optionally, binding piece 9 can be metal tape, such as：Steel band.Metal is with a plurality of, and a plurality of metal tape is along tank skin 26
Short transverse interval tie up exterior trimming parts 28.Every metal tape is enclosed along the circumferencial direction coiling one of tank skin 26, i.e., around exterior trimming parts 28
One encloses, spaced apart between adjacent metal tape.
Optionally, binding piece 9 can also be other metals or nonmetallic manufactured ribbon.
Optionally, the two ends of binding piece 9 are fixed by riveting, and can also pass through welding.
Preferably, as shown in figure 4, fluted 29 are arranged on the outer surface of exterior trimming parts 28, binding piece 9 is embedded in groove 29
It is interior.After binding piece 9 is embedded into groove 29, the play above and below the surface of exterior trimming parts 28 of binding piece 9 can be prevented, structure can be increased
Stability.
Preferably, heat insulating element 8 is wooden unit or unit of plastic.The thermal coefficient of wooden unit is relatively low, and has preferable structure
Intensity can play the role of being stably connected with and supporting.The thermal coefficient of plastics is relatively low, can also play preferable connection and branch
Support acts on.
Optionally, heat insulating element 8 can also select the lower material of other thermal coefficients.
Preferably, as shown in Figure 1, the both sides positioned at the first connecting tube 5 on the first communicating pipe 3 are respectively arranged at least one
The first water pump of platform 31, the both sides positioned at the second connecting tube 6 on the second communicating pipe 4 are respectively arranged at least second water pump
41。
First water pump 31 and the second water pump 41 are variable frequency pump, facilitate control.First water pump 31 and the second water pump 41 can be with
Using parameters such as identical model, power, frequencies.
When cold-storage, hot water through upper water distributor 21 flow out, then through the first communicating pipe 3, the first water pump 31, the first connecting tube 5,
After periodical feeding pipeline 11, it can freeze in host 1 into system, cold water obtained connects through periodical feeding pipeline 11, second
After siphunculus 4, the second water pump 41, the second connecting tube 6, enters through lower water-dispensing device 22 and carry out cold-storage in water tank 2.
When releasing cold, cold water is after lower water-dispensing device 22, the second communicating pipe 4, the second water pump 41, the second connecting tube 6, into following
In ring water supply pipe 11, then through the supply of periodical feeding pipeline 11 to air conditioning terminal or user terminal progress cooling, the heat obtained later
Water returns to storage after periodical feeding pipeline 11, the first connecting tube 5, the first communicating pipe 3, the first water pump 31 through upper water distributor 21
In water pot.
When accumulation of heat, cold water is through lower water-dispensing device 22, the second communicating pipe 4, the second water pump 41, the second connecting tube 6, periodical feeding pipe
After road 11, it can be heated in host 1 into system, hot water obtained is through periodical feeding pipeline 11, the first connecting tube 5, first
After communicating pipe 3, the first water pump 31, is returned to through upper water distributor 21 and carry out accumulation of heat in water tank.
When heat release, hot water is flowed out through upper water distributor 21, then through the first communicating pipe 3, the first water pump 31, the first connecting tube 5
Later, into periodical feeding pipeline 11, then through the supply of periodical feeding pipeline 11 to air conditioning terminal or user terminal heat supply is carried out, it
The cold water obtained afterwards is after periodical feeding pipeline 11, the second connecting tube 6, the second communicating pipe 4, the second water pump 41, through lower water distribution
Device 22 returns in water tank.
It keeps synchronizing to ensure two or more water tanks in heat release or heat-accumulating process, be arranged in the first communicating pipe 3
There are two the first water pumps 31, each upper water distributor 21 to be connect at least first water pump 31, by controlling the first water pump 31
Rotating speed or frequency, to adjust the water by the first water pump 31, so as to ensure through upper water distributor 21 enter each water storage
Water in tank 2 or the water flowed out from the upper water distributor 21 in each water tank 2 are consistent, and then realize in accumulation of heat or heat release
During two or more water tanks 2 keep synchronize, do not have water level deviation, improve accumulation of heat, heat release effect.
It keeps synchronizing to ensure two or more water tanks in releasing cold or process of cool, be arranged in the second communicating pipe 4
There are two the second water pumps 41, each lower water-dispensing device 22 to be connect at least second water pump 41, by controlling the second water pump 41
Rotating speed or frequency, to adjust the water by the second water pump 41, so as to ensure through lower water-dispensing device 22 enter each water storage
Water in tank 2 or the water flowed out from the lower water-dispensing device 22 in each water tank 2 are consistent, and then realize in cold-storage or release cold
During two or more water tanks 2 keep synchronize, do not have water level deviation, improve cold-storage, release cold effect.
Preferably, as shown in Figure 1, the first connecting tube 5 and the connectivity points of the first communicating pipe 3 are located at two the first water pumps 31
Middle, the second connecting tube 6 and the connectivity points of the second communicating pipe 4 are located at the middle of two the second water pumps 41.It only needs two
The frequency of the first water pump of platform 31 is set as consistent, you can ensures that the disengaging water of adjacent upper water distributor 21 is identical, to keep
Liquid level, which synchronizes, in water tank 2 rises or falls.It only needs the frequency of two the second water pumps 41 being set as consistent, you can ensure phase
The disengaging water of adjacent lower water-dispensing device 22 is identical, is risen or fallen to keep in water tank 2 liquid level to synchronize.
Preferably, as shown in Figure 1, be both provided with the level sensor 23 for detection of liquid level in each water tank 2, use
Whether whether liquid level balance or synchronize in the two or more water tanks 2 of monitoring.
Preferably, as shown in figure 5, the energy storage system further includes control device 7, control device 7 include master controller 71 with
The comparator 72 that master controller 71 communicates to connect.Each level sensor 23 is communicated to connect with master controller 71 respectively.
First water pump 31 and the second water pump 41 are variable frequency pump, every variable frequency pump (the first water pump 31 and the second water pump 41)
Inside all there is frequency-variable controller K, every frequency-variable controller K to be communicated to connect respectively with master controller 71.
Involved communication connection is that signal is connected or is electrically connected in the utility model.
The data that the transmission of level sensor 23 that comparator 72 is used in more two or more water tanks 2 comes.If two
Liquid level difference in a or multiple water tanks 2 is within a preset range or holding synchronizes, then keeps the work shape that variable frequency pump is current
State or operating frequency.Except if the liquid level in two or more water tanks 2 differs within a preset range, need to change certain
Or the frequency of more variable frequency pumps, then by master controller 71 to need change frequency variable frequency pump in frequency-variable controller
K output orders, which realizes the change of water supply size by changing frequency, and then keeps two or more water tanks
2 synchronization water storages discharge water.
Preferably, control device 7 further includes attention device 73, display 74 and operation panel 75, attention device 73, display 74
It is communicated to connect respectively with master controller 71 with operation panel 75.
Except the liquid level in two or more water tanks 2 differs within a preset range or when asynchronous operation, main control
Device 71 sends out signal to attention device 73, and attention device 73 is alarmed, and staff can be reminded to pay attention to sound-light alarm.
Liquid level in each water tank 2 can be exported to display 74, facilitate staff to observe liquid level, and can be with
Any need to change frequency according to the clear platform pump of display content.
Except liquid level in two or more water tanks 2 differs within a preset range or when asynchronous operation, operator
Member can change the operating frequency of variable frequency pump by operation panel 75, be conveniently operated.
As needed, above-mentioned each technical solution can be combined, to reach best-of-breed technology effect.
Above-described is only the principles of the present invention and preferred embodiment.It should be pointed out that for the general of this field
For logical technical staff, on the basis of the utility model principle, several other modifications can also be made, this practicality is also should be regarded as
Novel protection domain.
Claims (10)
1. a kind of energy storage system, which is characterized in that can host and at least two water tanks including system；
The water tank includes tank deck, tank bottom and the tank skin being connected between the tank deck and the tank bottom；
It is provided with upper water distributor and lower water-dispensing device in the water tank；
At least one layer of insulating layer is provided on the outer surface of the tank skin；
It is communicated with periodical feeding pipeline between the both ends of the energy host processed；
Wherein, two upper water distributors of arbitrary neighborhood are connected to by the first communicating pipe, and every first communicating pipe passes through
One connecting tube and the periodical feeding pipeline connection；
Two lower water-dispensing devices of arbitrary neighborhood are connected to by the second communicating pipe, and every second communicating pipe passes through the second connection
Pipe and the periodical feeding pipeline connection.
2. energy storage system according to claim 1, which is characterized in that be provided at least on the outer surface of the insulating layer
One layer of exterior trimming parts；
It is provided with heat insulating element between the tank skin and the exterior trimming parts；
The exterior trimming parts is connect by the heat insulating element with the tank skin.
3. energy storage system according to claim 2, which is characterized in that one end of the heat insulating element passes through the first connector
It is connect with the tank skin, the other end is connect by the second connector with the exterior trimming parts.
4. energy storage system according to claim 2, which is characterized in that also tied up bundle on the outer surface of the exterior trimming parts
Bandaging piece.
5. energy storage system according to claim 4, which is characterized in that be provided on the outer surface of the exterior trimming parts recessed
Slot, the binding piece are embedded in the groove.
6. energy storage system according to claim 2, which is characterized in that the heat insulating element is wooden unit or unit of plastic.
7. energy storage system according to claim 1, which is characterized in that be located at first connecting tube on the first communicating pipe
Both sides be respectively arranged at least first water pump, set respectively positioned at the both sides of second connecting tube on the second communicating pipe
It is equipped at least second water pump.
8. energy storage system according to claim 7, which is characterized in that be both provided in each water tank for visiting
Survey the level sensor of liquid level.
9. energy storage system according to claim 8, which is characterized in that the energy storage system further includes control device, the control
Device processed includes the comparator of master controller and master controller communication connection；
Each level sensor is communicated to connect with the master controller respectively；
First water pump and second water pump are respectively variable frequency pump；
All have frequency-variable controller, every frequency-variable controller logical with the master controller respectively in every variable frequency pump
Letter connection.
10. energy storage system according to claim 9, which is characterized in that the control device further includes attention device, display
And operation panel, the attention device, the display and the operation panel are communicated to connect with the master controller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721407233.9U CN207635920U (en) | 2017-10-26 | 2017-10-26 | Energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721407233.9U CN207635920U (en) | 2017-10-26 | 2017-10-26 | Energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207635920U true CN207635920U (en) | 2018-07-20 |
Family
ID=62859041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721407233.9U Active CN207635920U (en) | 2017-10-26 | 2017-10-26 | Energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207635920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701765A (en) * | 2019-10-16 | 2020-01-17 | 北京佩尔优能源科技有限公司 | Water storage tank and manufacturing method thereof |
-
2017
- 2017-10-26 CN CN201721407233.9U patent/CN207635920U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701765A (en) * | 2019-10-16 | 2020-01-17 | 北京佩尔优能源科技有限公司 | Water storage tank and manufacturing method thereof |
| CN110701765B (en) * | 2019-10-16 | 2024-04-30 | 北京佩尔优能源科技有限公司 | Water storage tank and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104567205B (en) | Refrigerator | |
| CN204191625U (en) | Protective garment refrigeration cool-down system | |
| CN207635920U (en) | Energy storage system | |
| CN205482102U (en) | Compressor immersion fluid frozen machine | |
| CN205897645U (en) | Cold -stored refrigeration device | |
| CN206018776U (en) | Solar energy and electric energy synthesis storing energy and supplying hot system | |
| CN207555843U (en) | A kind of energy storage system | |
| CN108331087B (en) | Automatic temperature control anti-freezing system for water pipe | |
| KR101383024B1 (en) | Drinking water instantaneous cooling equipment with separate tank | |
| CN204104611U (en) | A kind of sperm storage case of adjustable refrigeration | |
| CN206018791U (en) | Low valley power storage heating plant | |
| CN207831538U (en) | A kind of air-conditioner energy-accumulation system | |
| CN207555840U (en) | A kind of air-conditioner energy-accumulation equipment | |
| CN204313537U (en) | A kind of low-temperature insulation type dry evaporator | |
| CN207635499U (en) | Accumulation of energy energy supplying system | |
| CN207527753U (en) | Water tank and energy-storage system | |
| CN211378937U (en) | Temperature-control and automatic-watering vegetable incubator | |
| CN104390394A (en) | Low-temperature heat-preservation type dry evaporator and control method thereof | |
| CN207555844U (en) | A kind of energy-storage system | |
| CN206019432U (en) | The center accumulation of heat component of regenerative apparatus | |
| CN202734281U (en) | Antifreezing solar water heater with double-core pipeline | |
| CN209121720U (en) | A kind of Fishery Cold Storage storage rack special | |
| CN101839606A (en) | Heating water drain pipe device | |
| CN103162502B (en) | Refrigeration device | |
| CN206978458U (en) | Small size pond cultivates cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190408 Granted publication date: 20180720 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220408 Granted publication date: 20180720 |
|
| PD01 | Discharge of preservation of patent |