CN211261421U - Intelligent temperature control grain storage system - Google Patents
Intelligent temperature control grain storage system Download PDFInfo
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- CN211261421U CN211261421U CN201921811455.6U CN201921811455U CN211261421U CN 211261421 U CN211261421 U CN 211261421U CN 201921811455 U CN201921811455 U CN 201921811455U CN 211261421 U CN211261421 U CN 211261421U
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Abstract
The utility model discloses an intelligence accuse temperature stores up grain system, the utility model discloses a mutually supporting of refrigerating system, water piping system conveying system, air treatment and air supply system and control system, the inside temperature, the humidity that reaches the grain face space of automatically regulated grain heap. The utility model can realize the cooling and ventilation of the whole grain stack in the high temperature season in summer, and can also realize the temperature control of the space above the grain surface, thereby reducing the influence of the external environment on the grain stack; in winter, only the air supply system can be started, and outside cold sources are used for mechanically ventilating and cooling the grains. The utility model discloses can be according to the grain feelings in every storehouse, automatic opening or closing air treatment and air supply to can acquire supply-air outlet humiture and interior humiture of storehouse automatically, through analysis judgement back automatic adjustment supply-air outlet humiture, effectively ensure that the grain feelings in every storehouse can both obtain timely, science, effectual processing.
Description
Technical Field
The utility model particularly relates to an intelligence accuse temperature stores up grain system.
Background
At present, domestic temperature control grain storage technologies are numerous, wherein the northern area mainly comprises mechanical ventilation in autumn and winter, circulation temperature control in summer and the like; the southern areas mainly adopt winter mechanical ventilation, summer valley cooling ventilation, air-conditioning cooling and the like, the technologies are relatively mature and are very widely applied, the guarantee is provided for safe and green storage of grains, but the existing intelligent temperature-control grain storage system still has the following problems:
the grain cooling machine is an important component of the existing temperature-control grain storage system, and the work load is large because a worker needs to regularly inspect the operation condition of equipment and detect the temperature and humidity of an air port on site in the grain cooling process of the grain cooling machine; in addition, the grain cooler cannot automatically acquire the temperature and the humidity of grains in the bin, the temperature and humidity data of the air outlet cannot be automatically adjusted according to the grain condition, and the phenomenon of unreasonable ventilation caused by untimely parameter adjustment can occur in the grain cooling process. And the grain cooler mostly adopts an air cooling system, utilizes a condensing fan to discharge heat source, and achieves the purpose of heat exchange. This system is under the higher operating mode of external temperature, and the amount of wind and the wind pressure after the refrigeration can't reach imported soybean millet cold aeration cooling requirement, and aeration cooling efficiency is lower, receives the environmental condition influence moreover, easily leads to the frequency conversion fan can appear surpassing the frequency restriction trouble and lead to the shutdown protection. The custodian can't obtain the information of shutting down and repair at the very first time after automatic shutdown, if the downtime is longer, easily causes the interior moist heat of storehouse to gather, prolongs the millet cold time greatly.
Secondly, import soybean warehouse entry is generally concentrated in 5-9 months, and at the moment, import soybean is also in a high-rise period of heating, a large number of warehouses need rapid grain cooling, and because the number of grain coolers equipped in the warehouse is limited, the grain condition of each warehouse cannot be guaranteed to be timely and effectively processed, so that the best cooling processing opportunity is missed, and the grain condition processing cost in the later period is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intelligence accuse temperature stores up grain system to the weak point of prior art to reach the purpose of sensitivity height, information acquisition degree preferred.
An intelligent temperature control grain storage system comprises a plurality of granaries, a refrigeration system, a water pipeline system, an air treatment and supply system and a control system;
the bottom of the granary is provided with a pair of air supply outlets which are respectively positioned at two sides of the granary;
the refrigerating system comprises a main machine room positioned on one side of the granary, and a first water chilling unit and a second water chilling unit which are arranged in the main machine room;
the water pipeline system comprises a cold water main pipe A, a cold water main pipe B, a cold water main pipe C, a cold water main pipe D, a hot water main pipe A, a hot water main pipe B, a hot water main pipe D, a first water pump and a second water pump, wherein one end of the cold water main pipe A is communicated with a cold water outlet of a first water chilling unit, one end of the cold water main pipe B is communicated with a cold water inlet of the first water chilling unit, one end of the cold water main pipe D is communicated with a cold water inlet of the second water chilling unit, the other end of the cold water main pipe B is communicated with the hot water main pipe A, one end of the hot water main pipe C is communicated with a hot water outlet of the first water chilling unit, the other end of the hot water main pipe D is communicated with the hot water main pipe A, one end of the hot water main pipe D is communicated with the hot water inlet of the second water, the third water pump and the fourth water pump are respectively arranged on the hot water main pipe A and the hot water main pipe C, one end of the cold water branch pipe is communicated with the cold water main pipe A, the other end of the cold water branch pipe sequentially penetrates through the plurality of granaries and then is communicated with the cold water main pipe C, and one end of the hot water branch pipe is communicated with the hot water main pipe A, and the other end of the hot water branch pipe is sequentially penetrated through the plurality of granaries and then is communicated with the hot.
Furthermore, the air treatment and supply system comprises a plurality of auxiliary machine rooms in one-to-one correspondence with the grain bins, an air treatment unit arranged in the auxiliary machine rooms, and an outdoor fan arranged outside the auxiliary machine rooms;
the air handling unit comprises an air inlet section, a filtering section, an overhauling section, a surface cooling section, a heating section, a reserved empty section and a blower section, wherein a cooling coil is arranged in the surface cooling section;
an air supply pipe is arranged between the air handling unit and the air supply outlet, a main air pipe A and a main air pipe B are arranged on the air supply pipe, one end of the main air pipe A is communicated with one air supply outlet, the other end of the main air pipe A is communicated with the air supply pipe, one end of the main air pipe B is communicated with the other air supply outlet, and the other end of the main air pipe B is communicated with the air supply pipe;
an air distribution pipe A is arranged at the air supply opening, one end of the air distribution pipe A is communicated with the air supply opening, and the other end of the air distribution pipe A extends into the top of the granary;
an air distribution pipe B is arranged at the air supply port, one end of the air distribution pipe B is communicated with the air supply port, and the other end of the air distribution pipe B extends into the bottom of the granary;
and a natural air pipe is arranged at the outlet of the air supply outlet, one end of the natural air pipe is communicated with the air supply outlet, and the other end of the natural air pipe is communicated with an outdoor fan.
Further, the control system comprises a temperature and humidity sensor arranged at the air supply opening, a first valve arranged on the cold water main pipe A, a second valve arranged on the cold water main pipe B, a third valve arranged on the hot water main pipe A, a fourth valve arranged on the hot water main pipe B, a fifth valve arranged on a first pipeline, a sixth valve arranged on a second pipeline, a seventh valve arranged on the main air pipe A, an eighth valve arranged on the main air pipe B, a ninth valve arranged on the branch air pipe A and a tenth valve arranged on the branch air pipe B;
the control system also comprises a DDC controller for field control, a host machine which is used for displaying and sending instructions and is provided with a display screen, and an application server which is used for storing historical data and managing user authority, wherein the host machine is connected with the application server through a network and communicates by adopting a BACnet protocol;
the system comprises an outdoor fan, an air handling unit, a temperature and humidity sensor, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, a first water pump, a second water pump, a seventh valve, an eighth valve, a ninth valve, a tenth valve, a third water pump and a fourth water pump, wherein the first valve, the second valve, the seventh valve, the eighth valve, the ninth valve, the tenth valve, the third water pump and the fourth water pump are respectively electrically connected with a DDC controller, and the DDC controller is accessed into a network through a network control engine and is used for carrying out information transmission with.
The utility model discloses beneficial effect has: the utility model automatically adjusts the temperature and humidity in the grain pile and the grain surface space through the mutual matching of the refrigeration system, the air treatment and the air supply system; cold water is provided by a water chilling unit and is sent to an air processing unit at each tail end, outdoor fresh air is sent into a granary after being filtered, cooled, dehumidified and heated in the air units, and the temperature of the whole granary can be reduced and ventilated and the temperature of the space above the grain surface can be controlled in high-temperature seasons in summer by using the air distributing pipes A and the air distributing pipes B, so that the influence of the external environment on the granary is reduced; an outdoor fan is utilized to start the air supply system only in winter, and external cold sources are utilized to perform mechanical ventilation and cooling on the grains, so that the environment is protected, and the energy is saved; the utility model discloses can be according to the grain feelings in every storehouse, automatic air treatment and air supply system of opening or closing to can acquire supply-air outlet humiture and storehouse internal temperature humidity automatically, through analysis judgement back automatic adjustment supply-air outlet humiture, effectively ensure that the grain feelings in every storehouse can both obtain timely, science, effectual processing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the main room of the present invention;
FIG. 3 is a schematic structural view of the auxiliary machinery room of the present invention;
fig. 4 is a schematic structural diagram of the control system of the present invention.
In the figure: 1-granary, 2-refrigeration system, 3-main machine room, 4-first water chilling unit, 5-second water chilling unit, 6-cold water main pipe A, 7-cold water main pipe B, 8-cold water main pipe C, 9-cold water main pipe D, 10-hot water main pipe A, 11-hot water main pipe B, 12-hot water main pipe C, 13-hot water main pipe D, 14-first water pump, 15-second water pump, 16-cold water branch pipe, 17-hot water branch pipe, 18-auxiliary machine room, 19-air handling unit, 20-blower section, 21-surface cooling section, 22-heating section, 23-cooling coil, 24-heating coil, 25-blower pipe, 26-air branch pipe A, 27-air branch pipe B, 28-main air pipe A, 29-main air pipe B, 30-temperature and humidity sensor, 31-first valve, 32-second valve, 33-third valve, 34-fourth valve, 35-fifth valve, 36-sixth valve, 37-DDC controller, 38-host, 39-application server, 40-network control engine, 41-third water pump, 42-fourth water pump, 43-first pipeline, 44-second pipeline, 45-seventh valve, 46-eighth valve, 47-ninth valve, 48-tenth valve, 49-outdoor fan and 50-natural air pipe.
Detailed Description
An intelligent temperature control grain storage system comprises a plurality of granaries 1, a refrigeration system 2, a water pipeline system, an air treatment and supply system and a control system;
the bottom of the granary 1 is provided with a pair of air supply outlets which are respectively positioned at two sides of the granary 1;
the refrigerating system 2 comprises a main machine room 3 positioned on one side of the granary 1, and a first water chilling unit 4 and a second water chilling unit 5 which are arranged in the main machine room 3;
the water pipeline system comprises a cold water main pipe A6 with one end communicated with a cold water outlet of the first cold water unit 4, a cold water main pipe B7 with one end communicated with a cold water outlet of the second cold water unit 5 and the other end communicated with a cold water main pipe A6, a cold water main pipe C8 with one end communicated with a cold water inlet of the first cold water unit 4, a cold water main pipe D9 with one end communicated with a cold water inlet of the second cold water unit 5 and the other end communicated with a cold water main pipe C8, a hot water main pipe A10 with one end communicated with a hot water outlet of the first cold water unit 4, a hot water main pipe B11 with one end communicated with a hot water outlet of the second cold water unit 5 and the other end communicated with a hot water main pipe A10, a hot water main pipe C12 with one end communicated with a hot water inlet of the second cold water unit 5, a hot water main pipe D13 with one end communicated with a hot water inlet of the second cold water unit 5, a first water, The second water pump 15 is respectively arranged on a third water pump 41 and a fourth water pump 42 on the hot water main pipe A10 and the hot water main pipe C12, a cold water branch pipe 16 with one end communicated with the cold water main pipe A6 and the other end sequentially penetrating through a plurality of grain bins 1 and then communicated with the cold water main pipe C8, and a hot water branch pipe 17 with one end communicated with the hot water main pipe A10 and the other end sequentially penetrating through a plurality of grain bins 1 and then communicated with the hot water main pipe C12;
first cooling water set 4, second cooling water set 5 are outsourcing spare, and first cooling water set 4, second cooling water set 5 are frequency conversion screw rod cooling water set, and its concrete structure and theory of operation belong to prior art, and this application is not repeated.
The centralized refrigeration is realized through the refrigeration system 2, the use of a refrigerant is reduced, and compared with the existing refrigeration equipment, the refrigeration equipment is more environment-friendly, and the water chilling unit is arranged in the main machine room 3, so that the equipment has good running environment, is not influenced by weather of wind, rain, thunder and electricity, and has low failure rate;
the air treatment and supply system comprises a plurality of auxiliary machine rooms 18 corresponding to the grain bins 1 one by one, an air treatment unit 19 arranged in each auxiliary machine room 18, and an outdoor fan 49 arranged outside each auxiliary machine room;
the air handling unit 19 comprises an air inlet section, a filtering section, an overhauling section, a surface cooling section 21, a heating section 22, a reserved empty section and a blower section, wherein a cooling coil 23 is installed in the surface cooling section 21, a heating coil 24 is installed in the heating section 22, two ends of the cooling coil 23 are communicated with the cooling branch pipes 16 through first pipelines 43, and two ends of the heating coil 24 are communicated with the heating branch pipes 17 through second pipelines 44;
an air supply pipe 25 is arranged between the air handling unit 19 and the air supply outlets, a main air pipe A28 and a main air pipe B29 are arranged on the air supply pipe 25, one end of the main air pipe A28 is communicated with one of the air supply outlets, the other end of the main air pipe A28 is communicated with the air supply pipe 25, one end of the main air pipe B29 is communicated with the other air supply outlet, and the other end of the main air pipe B29 is communicated with the air supply;
an air distribution pipe A26 is arranged at the air supply opening, one end of an air distribution pipe A26 is communicated with the air supply opening, and the other end of the air distribution pipe A26 extends into the top of the granary 1;
an air distribution pipe B27 is arranged at the air supply port, one end of an air distribution pipe B27 is communicated with the air supply port, and the other end of the air distribution pipe B27 extends into the bottom of the granary 1;
and a natural air pipe 50 is arranged at the outlet of the air supply outlet, one end of the natural air pipe 50 is communicated with the air supply outlet, and the other end of the natural air pipe 50 is communicated with an outdoor fan 49.
The air handling unit 19 is a purchased part, and the specific structure and the working principle thereof belong to the prior art, which are not described in detail in this application.
The refrigeration system 2 and the air treatment and air supply system are matched with each other to adjust the temperature and the humidity of the granary 1 and automatically adjust the temperature and the humidity of the interior of the grain pile and the grain surface space; cold water is provided by a water chilling unit and is sent to an air processing unit at each tail end, outdoor fresh air is sent into a granary after being filtered, cooled, dehumidified and heated in the air units, and the temperature of the whole granary can be reduced and ventilated and the temperature of the space above the grain surface can be controlled in high-temperature seasons in summer by using the air distributing pipes A and the air distributing pipes B, so that the influence of the external environment on the granary is reduced; an outdoor fan is utilized to start the air supply system only in winter, and external cold sources are utilized to perform mechanical ventilation and cooling on the grains, so that the environment is protected, and the energy is saved;
the first water chilling unit and the second water chilling unit realize water refrigeration through Freon, and meanwhile, as the Freon absorbs heat in the refrigeration process, redundant waste heat is generated, the heat is utilized to realize water heating, so that the water chiller is environment-friendly and energy-saving; cold water provided by the cold water units is conveyed to the cooling section 21 of each air processing unit 19 through the cold water main pipe A6, outdoor fresh air is cooled through the surface cooling section 21 and then is rapidly cooled, air is conveyed into the granary 1 through the air distributing pipe A26, the air distributing pipe B27, the main air pipe A28 and the main air pipe B29 after the required temperature requirement is met, and the cold water absorbing heat returns to the cold water units through the cold water main pipe B7 to realize the recycling of water; hot water provided by the water chilling unit is conveyed to the heating section 22 of each air processing unit 19 through the hot water main pipe A10, outdoor fresh air is heated by the heating section 22 and then rapidly heated, air is conveyed into the granary 1 through the air distributing pipe A26, the air distributing pipe B27, the main air pipe A28 and the main air pipe B29 after the required temperature requirement is met, and the hot water after heat release returns to the water chilling unit through the hot water main pipe B11 to realize water recycling.
The control system comprises a temperature and humidity sensor 30 arranged at an air supply opening, a first valve 31 arranged on a cold water main pipe A6, a second valve 32 arranged on a cold water main pipe B7, a third valve 33 arranged on a hot water main pipe A10, a fourth valve 34 arranged on a hot water main pipe B11, a fifth valve 35 arranged on a first pipeline 43, a sixth valve 36 arranged on a second pipeline 44, a seventh valve 45 arranged on a main air pipe A28, an eighth valve 46 arranged on a main air pipe B29, a ninth valve 47 arranged on a branch air pipe A26 and a tenth valve 48 arranged on a branch air pipe B27;
the control system also comprises a DDC controller 37 used for field control, a host 38 used for displaying and sending instructions and provided with a display screen, and an application server 39 used for historical data storage and user authority management, wherein the host 38 is connected with the application server 39 through a network and communicates by adopting a BACnet protocol;
the outdoor fan 49, the air handling unit 19, the temperature and humidity sensor 30, the first valve 31, the second valve 32, the third valve 33, the fourth valve 34, the fifth valve 35, the sixth valve 36, the first water pump 14, the second water pump 15, the third water pump, the fourth water pump, the seventh valve, the eighth valve, the ninth valve, and the tenth valve are electrically connected with the DDC controller 37, respectively, and the first water chiller 4, the second water chiller 5, and the DDC controller 37 are connected to the network through the network control engine 40, and perform information transmission with the host 38 and the application server 39.
The automatic control of the temperature and the humidity of the granary 1 is realized through a control system, the regulation of the air supply temperature and the humidity is realized by utilizing the opening and closing of a valve, and the air supply state point required in the granary is set by utilizing a temperature and humidity sensor, so that the labor is saved, the labor intensity is reduced, and the working efficiency is improved;
the temperature and the humidity required by the granary 1 are input into the host machine 38, the host machine 38 transmits temperature and humidity signals to the DDC controller 37, the DDC controller 37 receives the signals and then controls the water chilling unit to work to refrigerate part of water, meanwhile, the heat generated in the Freon refrigerating process is used for heating part of the water, the DDC controller 37 receives the signals and then controls the air processing unit 19 to work, hot water and cold water provided by the water chilling unit are used for heating and cooling the air, and the air is input into the granary 1 after reaching the proper temperature and humidity.
When wind is sent into the granary 1 through the air supply opening, the temperature and humidity sensor 30 of the air supply opening detects the temperature and humidity of the wind, if the temperature of the wind is higher than the temperature required by the granary 1, the temperature and humidity sensor 30 transmits a signal to the DDC controller 37, the DDC controller 37 controls the fifth valve 35 after receiving the signal, and the fifth valve 35 is further opened, so that the flow rate of cold water in the cooling coil 23 is accelerated, and the cooling of the wind is accelerated;
if the temperature of the wind is lower than the temperature required by the grain bin 1, the temperature and humidity sensor 30 transmits a signal to the DDC controller 37, the DDC controller 37 controls the sixth valve 36 after receiving the signal, and the sixth valve 36 is further opened, so that the flow rate of hot water in the cooling coil 23 is increased, and the heating of the wind is accelerated;
if the humidity of the wind is higher than the humidity required by the grain bin 1, the temperature and humidity sensor 30 transmits a signal to the DDC controller 37, the DDC controller 37 controls the fifth valve 35 after receiving the signal, and the fifth valve 35 is further opened, so that the flow rate of cold water in the cooling coil 23 is accelerated, and the wind is further cooled; after receiving the signal, the DDC controller 37 controls the sixth valve 36 to further open the sixth valve 36, so as to accelerate the flow rate of hot water in the cooling coil 23, accelerate the heating of the air, and perform a dehumidifying function.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (4)
1. An intelligent temperature control grain storage system is characterized by comprising a plurality of granaries, a refrigeration system, a water pipeline system, an air treatment and air supply system and a control system;
the bottom of the granary is provided with a pair of air supply outlets which are respectively positioned at two sides of the granary;
the refrigerating system comprises a main machine room positioned on one side of the granary, and a first water chilling unit and a second water chilling unit which are arranged in the main machine room;
the water pipeline system comprises a cold water main pipe A, a cold water main pipe B, a cold water main pipe C, a cold water main pipe D, a hot water main pipe A, a hot water main pipe B, a hot water main pipe D, a first water pump and a second water pump, wherein one end of the cold water main pipe A is communicated with a cold water outlet of a first water chilling unit, one end of the cold water main pipe B is communicated with a cold water inlet of the first water chilling unit, one end of the cold water main pipe D is communicated with a cold water inlet of the second water chilling unit, the other end of the cold water main pipe B is communicated with the hot water main pipe A, one end of the hot water main pipe C is communicated with a hot water outlet of the first water chilling unit, the other end of the hot water main pipe D is communicated with the hot water main pipe A, one end of the hot water main pipe D is communicated with the hot water inlet of the second water, the third water pump and the fourth water pump are respectively arranged on the hot water main pipe A and the hot water main pipe C, one end of the cold water branch pipe is communicated with the cold water main pipe A, the other end of the cold water branch pipe sequentially penetrates through the plurality of granaries and then is communicated with the cold water main pipe C, and one end of the hot water branch pipe is communicated with the hot water main pipe A, and the other end of the hot water branch pipe is sequentially penetrated through the plurality of granaries and then is communicated with the hot.
2. The intelligent temperature-controlled grain storage system of claim 1, wherein: the air treatment and supply system comprises a plurality of auxiliary machine rooms in one-to-one correspondence with the granaries, an air treatment unit arranged in the auxiliary machine rooms, and an outdoor fan arranged outside the auxiliary machine rooms;
the air handling unit comprises an air inlet section, a filtering section, an overhauling section, a surface cooling section, a heating section, a reserved air section and an air feeder section, wherein a cooling coil is installed in the surface cooling section, a heating coil is installed in the heating section, two ends of the cooling coil are communicated with a cooling branch pipe through a first pipeline, and two ends of the heating coil are communicated with a heating branch pipe through a second pipeline.
3. The intelligent temperature-controlled grain storage system of claim 2, wherein: an air supply pipe is arranged between the air handling unit and the air supply outlet, a main air pipe A and a main air pipe B are arranged on the air supply pipe, one end of the main air pipe A is communicated with one air supply outlet, the other end of the main air pipe A is communicated with the air supply pipe, one end of the main air pipe B is communicated with the other air supply outlet, and the other end of the main air pipe B is communicated with the air supply pipe;
an air distribution pipe A is arranged at the air supply opening, one end of the air distribution pipe A is communicated with the air supply opening, and the other end of the air distribution pipe A extends into the top of the granary;
an air distribution pipe B is arranged at the air supply port, one end of the air distribution pipe B is communicated with the air supply port, and the other end of the air distribution pipe B extends into the bottom of the granary;
and a natural air pipe is arranged at the outlet of the air supply outlet, one end of the natural air pipe is communicated with the air supply outlet, and the other end of the natural air pipe is communicated with an outdoor fan.
4. The intelligent temperature-controlled grain storage system of claim 3, wherein: the control system comprises a temperature and humidity sensor arranged at an air supply opening, a first valve arranged on a cold water main pipe A, a second valve arranged on a cold water main pipe B, a third valve arranged on a hot water main pipe A, a fourth valve arranged on the hot water main pipe B, a fifth valve arranged on a first pipeline, a sixth valve arranged on a second pipeline, a seventh valve arranged on a main air pipe A, an eighth valve arranged on the main air pipe B, a ninth valve arranged on a branch air pipe A and a tenth valve arranged on a branch air pipe B;
the control system also comprises a DDC controller for field control, a host machine which is used for displaying and sending instructions and is provided with a display screen, and an application server which is used for storing historical data and managing user authority, wherein the host machine is connected with the application server through a network and communicates by adopting a BACnet protocol;
the system comprises an outdoor fan, an air handling unit, a temperature and humidity sensor, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, a first water pump, a second water pump, a seventh valve, an eighth valve, a ninth valve, a tenth valve, a third water pump and a fourth water pump, wherein the first valve, the second valve, the seventh valve, the eighth valve, the ninth valve, the tenth valve, the third water pump and the fourth water pump are respectively electrically connected with a DDC controller, and the DDC controller is accessed into a network through a network control engine and is used for carrying out information transmission with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921811455.6U CN211261421U (en) | 2019-10-26 | 2019-10-26 | Intelligent temperature control grain storage system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921811455.6U CN211261421U (en) | 2019-10-26 | 2019-10-26 | Intelligent temperature control grain storage system |
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| CN211261421U true CN211261421U (en) | 2020-08-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671868A (en) * | 2019-10-26 | 2020-01-10 | 中央储备粮镇江直属库有限公司 | Intelligent temperature control grain storage system |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671868A (en) * | 2019-10-26 | 2020-01-10 | 中央储备粮镇江直属库有限公司 | Intelligent temperature control grain storage system |
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Granted publication date: 20200814 Termination date: 20211026 |