CN202087289U - Multi-path liquid mixing system and liquid on-line mixing system - Google Patents
Multi-path liquid mixing system and liquid on-line mixing system Download PDFInfo
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- CN202087289U CN202087289U CN2011201819619U CN201120181961U CN202087289U CN 202087289 U CN202087289 U CN 202087289U CN 2011201819619 U CN2011201819619 U CN 2011201819619U CN 201120181961 U CN201120181961 U CN 201120181961U CN 202087289 U CN202087289 U CN 202087289U
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- 238000005259 measurement Methods 0.000 abstract description 6
- 238000005303 weighing Methods 0.000 abstract description 4
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- 238000012544 monitoring process Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
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Abstract
The utility model discloses a multi-path liquid mixing system and a liquid on-line mixing system. The multi-path liquid mixing system comprises a plurality of pretreated liquid tanks in which different types of liquids to be mixed are stored, wherein any one pretreated liquid tank is exclusively connected with a feeding pump through a pipe, the outlets of the feeding pumps are connected with a mixing tank through a liquid pipe, the mixing tank is provided with a first weighing sensor which is in signal connection with a liquid mixing controller, and the liquid mixing controller is electrically connected with the feeding pumps and the mixing control device of the mixing tank. The weighing sensor is adopted to measure the weights of the liquids entering the mixing tank, so that the measurement accuracy can be greatly increased and far greater than that of the prior art adopting a flow meter. Besides, owing to the weight measurement mode, the changes in specific gravity of the liquids due to temperature change do not affect the measurement accuracy.
Description
Technical field
The utility model relates to the liquid hybrid technology, particularly a kind ofly can realize high accuracy, big flow multichannel liquid hybrid system and liquid on-line hybrid system, and online to realize, high-precision liquid mixes.
Background technology
The online liquid that relates in the industrial production mixes, and generally adopts flowmeter to come the liquid that participates in mixing is measured (also can adopt measuring pump).Referring to Fig. 1, in the mixture operation process of reality, mixed various raw material liqs are stored among the preliminary treatment flow container 1.When beginning to mix, feed pump 2 takes out liquid to be mixed from preliminary treatment flow container 1, and delivers in the blending tank 4 through piping.Under the promotion of feed pump 2, liquid to be mixed is measured by flowmeter 3 earlier, flowmeter 3 is passed to frequency converter 5 with flow signal, frequency converter 5 compares this flow signal and the flow parameter of setting in advance, and export control signal to adjust feed pump 2 rotating speeds according to result relatively, make the amount of liquid to be mixed of its conveying reach required flow.In fact, feed pump 2, flowmeter 3 and frequency converter 5 have constituted the automatic control system of a closed loop, and the target of its control is: make the flow that flows through flowmeter 3 liquid to be mixed through feed pump 2 reach the required flow of prior setting.
But based on Theory of Automatic Control as can be known: the automatic control system of any closed loop is in the starting stage of operation, and always there is bigger error in it with the predetermined control target that will reach, and the elimination of this error must be through a settling time.
Referring to Fig. 2, wherein shown is: the closed loop liquid flow control system that above-mentioned feed pump 2, flowmeter 3 and frequency converter 5 constitute initially reaches the stable transient process of fluid flow from starting.Obviously, in quite a while after system starts, the precision that flows through feed pump 2, flowmeter 3 liquid to be mixed is can not be guaranteed, and this makes the mode of mixing based on flowmeter control liquid can only obtain lower mixed-precision, has only the precision of a few percent usually.
On the other hand,, measure liquid to be mixed, certain error must occur because of liquid to be mixed proportion under different temperature is different in the mode of flow because the proportion of liquid to be mixed can change with the change of temperature.Have again and be exactly: when the capacity difference of the various liquid to be mixed in filling a prescription is big, be difficult to reach high-precision on-line mixing.For example: the N liquid of 1000 liters M liquid and 100 milliliters is mixed, because the amount difference between M liquid and the N liquid is up to 10000 times, if the mode that the use traffic meter measures, 100 milliliters amount of liquid even might be left in the basket is disregarded, therefore, with regard to above-mentioned example, be difficult to the precision that guarantees that these two kinds of liquid on-line are mixed.
To sum up, existing employing flowmeter obviously exists error bigger to the technical scheme that the liquid that participates in mixing measures, and is unsuitable for the higher liquid on-line of required precision and mixes.
The utility model content
An aspect of the present utility model is to provide a kind of multichannel liquid hybrid system, it realizes that based on the mode of weighing the liquid of multichannel mixes, make to the not proportion of liquid body and the influence of flowmeter error of the metering of various liquid to be mixed, realize that high-precision liquid on-line mixes.
Another aspect of the present utility model is to provide a kind of liquid on-line hybrid system, and it is based on above-mentioned multichannel liquid hybrid system, and can at random connect or in parallel, can adapt to various production-scale high-precision liquid on-line mixing.
An aspect of the present utility model adopts following scheme to realize:
A kind of multichannel liquid hybrid system has a plurality of preliminary treatment flow containers, wherein stores various liquid to be mixed; Arbitrary preliminary treatment flow container connects a feed pump uniquely through pipeline, and the feed delivery side of pump is connected to blending tank through fluid pipeline; The blending tank place is provided with one first LOAD CELLS, and weighing-up wave is connected to the liquid mixture control; The liquid mixture control is electrically connected the mixing actuation means of each feed pump and blending tank;
The range resolution of described first LOAD CELLS is less than or equal to 1/2
16
Described preliminary treatment flow container is provided with second LOAD CELLS, and the range resolution of this second LOAD CELLS is less than or equal to 1/2
16And output signal is connected to the liquid mixture control;
Described preliminary treatment flow container place is provided with a constent temperature heater, uses so that the temperature of the interior liquid to be mixed of pretreatment fluid jar remains within the stationary temperature scope.
Owing to adopted LOAD CELLS to measure to entering in the blending tank quality of liquid, avoided generally adopting in the prior art that the metering method of flowmeter brings than mistake, make measuring accuracy to be greatly improved, its precision depends on the measurement resolving accuracy for LOAD CELLS.Simultaneously, owing to adopt the weight metering mode, make liquid because the proportion that variations in temperature causes changes the precision that can not influence metering.
Another aspect of the present utility model adopts following scheme to realize:
A kind of liquid on-line hybrid system comprises an above prime mixed cell and secondary mixed cell more than at least; Prime mixed cell and secondary mixed cell are made of multichannel liquid hybrid system respectively;
Multichannel liquid hybrid system has a plurality of preliminary treatment flow containers, wherein stores various liquid to be mixed; Arbitrary preliminary treatment flow container connects a feed pump uniquely through pipeline, and the feed delivery side of pump is connected to blending tank through fluid pipeline; The blending tank place is provided with one first LOAD CELLS, and weighing-up wave is connected to the liquid mixture control; The liquid mixture control is electrically connected the mixing actuation means of each feed pump and blending tank;
The blending tank of arbitrary prime mixed cell is connected to a buffer-stored jar through an inter-stage feed pump, and the preliminary treatment flow container of this a buffer-stored jar and a level mixed cell is made as one;
The blending tank of described a plurality of prime mixed cells is connected to a buffer-stored jar through an inter-stage feed pump respectively;
The range resolution of described first LOAD CELLS is less than or equal to 1/2
16
Described preliminary treatment flow container and/or buffer-stored jar are provided with second LOAD CELLS, and the range resolution of this second LOAD CELLS is less than or equal to 1/2
16And output signal is connected to the liquid mixture control;
Described preliminary treatment flow container and/or buffer-stored jar place are provided with a constent temperature heater, use so that the temperature of pretreatment fluid jar and/or interior liquid to be mixed remains within the stationary temperature scope.
Owing to prime mixed cell, secondary units connected and/or be arranged in parallel, make the liquid of prime mix and mix independence each other with secondary liquid, be independent of each other.In addition, because any amount of prime mixed cell can adopt above-mentioned embodiment at the same level in parallel, make that the quantity delivered of the liquid to be mixed in the corresponding buffer-stored jar can be guaranteed in the secondary mixed cell, and then guarantee the online uninterrupted production under the prerequisite that high accuracy is mixed of whole liquid on-line mixing system.Make this liquid on-line hybrid system can be applicable to various production-scale requirements.
Description of drawings
Fig. 1 is existing liquid hybrid system schematic diagram;
Fig. 2 is the schematic diagram of existing fluid flow closed-loop control system transient process;
Fig. 3 is the schematic diagram of the unified embodiment of the utility model liquid mixed stocker;
Fig. 4 is the schematic diagram of another embodiment of the utility model liquid hybrid system.
Fig. 5 is the schematic diagram of another embodiment of the utility model liquid hybrid system;
Fig. 6 is the schematic diagram of the unified embodiment of the utility model liquid on-line mixed stocker.
Fig. 7 is the schematic diagram of another embodiment of the utility model liquid on-line hybrid system.
The specific embodiment
Following examples are described in further detail the technical solution of the utility model in conjunction with the accompanying drawings:
Referring to Fig. 3, in the specific embodiment of the utility model liquid hybrid system, have a plurality of preliminary treatment flow containers 1, wherein store various liquid to be mixed respectively; Arbitrary preliminary treatment flow container 1 connects a feed pump 2 uniquely through fluid pipeline; The outlet of feed pump 2 is connected to blending tank 4 through fluid pipeline.By means of above-mentioned system, the liquid to be mixed that stores in each preliminary treatment flow container 1 can be transported in the blending tank 4 via unique path.
Unlike the prior art be: the utility model is not provided with any flow detector on the pipeline between feed pump 2 and the blending tank 4, but at blending tank 4 places one LOAD CELLS 6 is set, and this LOAD CELLS should have 1/2 at least
16Resolution.In addition, the weighing-up wave of this LOAD CELLS 6 is connected in the liquid mixture control 7, after this liquid mixture control 7 receives weighing-up wave, with its with the prescription that in advance is stored in liquid mixture control 7 in the weight parameter of corresponding liquid to be mixed compare, when this weighing-up wave reflects that the weight that is sent to corresponding liquid to be mixed in the blending tank 4 reaches the weight parameter value of corresponding liquid to be mixed in the prescription, it is out of service then to control corresponding feed pump 2, and when still having other liquid to be mixed not to be transported to blending tank 4 in the aforementioned prescription, open corresponding liquid feeding pump to be mixed, corresponding liquid to be mixed is carried in continuation in blending tank 4, after all liquid to be mixed all were transported to blending tank 4 in a manner mentioned above in aforementioned formula, it is out of service that liquid mixture control 7 is controlled all feed pumps 2; After this, starting blending tank 4 mixes the liquid to be mixed that all are transported in the blending tank 4.
Referring to Fig. 4, it is the schematic diagram of another specific embodiment of the utility model liquid hybrid system, wherein, the structure of whole system and composition and aforementioned embodiments are basic identical, just further have additional LOAD CELLS 8 at each preliminary treatment flow container 1 place of aforementioned embodiments.The output signal of this LOAD CELLS 8 is connected to liquid mixture control 7, and should have 1/2 equally at least
16Resolution; Its effect is: the first, can utilize the storage of liquid in the pairing preliminary treatment flow container 1 of LOAD CELLS 8 monitoring, and be beneficial to liquid measure in preliminary treatment flow container 1 and in time replenish when low; The second, when blending tank 4 injected liquid to be mixed, the data sync that can utilize LOAD CELLS 8 to pass back was monitored the discharge of liquid to be mixed at feed pump 2, and substituted the effect of LOAD CELLS 6 in concrete controlling.
Referring to Fig. 5, in another specific embodiment of the utility model liquid hybrid system, further set up a constent temperature heater 9 at each preliminary treatment flow container 1 place.The purpose that this constent temperature heater 9 is set is that the temperature of guaranteeing liquid to be mixed in each preliminary treatment flow container 1 all remains within the stationary temperature scope.So just can make the proportion of liquid to be mixed in all preliminary treatment flow containers 1 can not be subjected to the influence that environment temperature changes.
The utility model has following advantage with above-mentioned each embodiment:
Owing to adopted LOAD CELLS that the quality that enters the liquid in the blending tank 4 is measured, avoided generally adopting in the prior art that the metering method of flowmeter brings than mistake, make measuring accuracy to be greatly improved, its precision depends on the measurement resolving accuracy for LOAD CELLS; For example: when employing has 1/2
16During the digital weighing sensor of precision, its range accuracy can reach 60,005 one thousandths, is higher than the control accuracy of any flowmeter far away.Simultaneously, owing to adopt the weight metering mode, rather than the flow measurement mode, make liquid because the proportion that variations in temperature causes changes the precision that can not influence metering.On this basis, owing to treat the measure that mixing material has been taked constant temperature, make all liquid to be mixed to prepare burden and measure, further guaranteed the required precision that mixes based on same temperature standard.
Referring to Fig. 6, mix in order to realize aforementioned high-precision liquid on-line, can be with the multichannel liquid hybrid system in above-mentioned each embodiment as prime mixed cell A independently, and according to corresponding liquid mixture length and amount of liquid to be mixed, with aforementioned each after independently mixed cell A carries out parallel connection, further connect again, promptly can constitute multistage, a high-precision liquid on-line hybrid system with secondary mixed cell B independently.
Particularly, in a basic liquid on-line hybrid system, any one prime mixed cell A can be the multichannel liquid hybrid system of arbitrary specific embodiment among above-mentioned Fig. 3,4,5, the blending tank 4 of arbitrary prime mixed cell A all connects an inter-stage feed pump 2a, this inter-stage feed pump 2a is controlled by liquid mixture control 7, its effect is the liquid that mixes through prime mixed cell A, from blending tank 4, be transported in time in the buffer-stored jar 21, make prime mixed cell A can continue the mixing of next batch.
Above-mentioned secondary mixed cell B, its structure and prime mixed cell A there is no big different, and just buffer-stored jar 21 wherein promptly is equivalent to the preliminary treatment flow container 1 among the prime mixed cell A, and perhaps both are wholely set.In the multilevel system of reality, just as the relation of above-mentioned prime mixed cell A and secondary mixed cell B, the arbitrary preliminary treatment flow container among any secondary mixed cell B all can be used as the buffer-stored jar 21 of prime mixed cell A corresponding with it.
Basic identical with the internal structure of prime mixed cell A, in secondary mixed cell B, be provided with a plurality of buffer-stored jars 21, its effect in secondary mixed cell is the same with preliminary treatment flow container 9 among the prime mixed cell A, wherein storing various is the liquid of mixing material finished product for prime mixed cell A, and this liquid is liquid to be mixed for secondary mixed cell B; Arbitrary buffer-stored jar 21 connects a feed pump 22 uniquely through fluid pipeline, and the outlet of feed pump 22 is connected to blending tank 41 through fluid pipeline.By means of above-mentioned system, the liquid to be mixed that stores in each buffer-stored jar 21 can be sent in the blending tank 41 via unique path.
A is the same with the prime mixed cell: secondary mixed cell B of the present utility model, on the pipeline between feed pump 22 and the blending tank 41, any flow detector is not set, but at blending tank 41 places one LOAD CELLS 6 is set, this LOAD CELLS should have 1/2 at least
16Resolution.In addition, the weighing-up wave of this high-precision LOAD CELLS is connected in the liquid mixture control 71, after this liquid mixture control 71 receives weighing-up wave, with its with the prescription of storage in advance in the weight parameter of corresponding liquid to be mixed compare, when this weighing-up wave reflects that the weight that is sent to corresponding liquid to be mixed in the blending tank 41 reaches the weight parameter value of corresponding liquid to be mixed in the prescription, it is out of service then to control corresponding feed pump 22, and when still having other liquid to be mixed not to be transported to blending tank 41 in the aforementioned prescription, open corresponding liquid feeding pump to be mixed, corresponding liquid to be mixed is carried in continuation in blending tank 41, after all liquid to be mixed all are transported to blending tank 41 in a manner mentioned above in aforementioned formula, it is out of service that liquid mixture control 71 is controlled all feed pumps 22, and startup blending tank 41 mixes the liquid to be mixed that all are transported in the blending tank 41.
The same with above-mentioned Fig. 4, scheme shown in Figure 5, each buffer-stored jar 21 place of secondary mixed cell B further have additional LOAD CELLS 8.The output signal of this LOAD CELLS 8 is connected to liquid mixture control 71, and should have 1/2 equally at least
16Resolution; Its effect is: the first, can utilize the storage of liquid in pairing each the buffer-stored jar 21 of LOAD CELLS 8 monitoring, and be beneficial to liquid measure in each buffer-stored jar 21 and in time replenish when low; The second, when blending tank 4 injected liquid to be mixed, the data sync that can utilize LOAD CELLS 8 to pass back was monitored the discharge of liquid to be mixed at feed pump 2, and substituted the effect of LOAD CELLS 6 in concrete controlling.
A is the same with the prime mixed cell, can also set up a constent temperature heater 9 at each buffer-stored jar 21 place.The purpose that this constent temperature heater 9 is set is that the temperature of guaranteeing liquid to be mixed in each buffer-stored jar 21 all remains within the stationary temperature scope.So just can make the proportion of liquid to be mixed in all pre-buffer-stored jars 21 can not be subjected to the influence that environment temperature changes.
Based on the situation that industry has been familiar with very much, when liquid that some volumes are bigger and the less liquid of some volumes mix, often need the operation of multistage mixing.For example: the N liquid of aforementioned 1000 liters M liquid and 100 milliliters is mixed, for the uniformity that guarantees to mix, normally earlier 100 milliliters N liquid is carried out mixing the first time with less (for example: 500 milliliters) M liquid, make 100 milliliters N liquid earlier in less (for example: 500 milliliters) M liquid, spread fully, mix, and then the mixing material that will mix N liquid and M liquid mix with more slightly (for example: 5 liters) M liquid; After this, repeatedly diffusion, mixing more fully mixes up to finishing 1000 liters whole M liquid and 100 milliliters N liquid with keeping.
The multistage hybrid system that the utility model above-mentioned prime mixed cell A and secondary mixed cell B are constituted, the mode that can mix according to the bigger liquid of aforementioned volume and the less liquid of volume, can calculate definite as required and be set at multistage, concrete progression.But no matter need to be provided with how many levels, the relation between any adjacent two-stage all can adopt among the aforesaid liquid on-line hybrid system structural relation of prime mixed cell A and secondary mixed cell B.
Among a liquid on-line hybrid system, no matter the mixed cell of any one-level is prime mixed cell A or secondary mixed cell B, all can carry out parallel connection between peer.For example, referring to Fig. 7, wherein show two kinds of specific embodiment in parallel at the same level; The parallel connection of first prime mixed cell A1 and prime mixed cell A2.Be that prime mixed cell A1 and prime mixed cell A2 mix the liquid finish and pass through among the same buffer-stored jar 21a that each self-corresponding feed pump 2a is transported to secondary mixed cell B.Two to be prime mixed cell A2 with prime mixed cell A3 in parallel for it.To be prime mixed cell A2 mix the liquid finished with prime mixed cell A2 is transported among the different buffer-stored jar 21a, 21 of secondary mixed cell B through each self-corresponding feed pump 2a respectively.No matter adopt above-mentioned any parallel way, perhaps two kinds of parallel waies adopt simultaneously, can mix according to the liquid on-line of reality to require to decide.
Need to prove: among a liquid on-line hybrid system, no matter be liquid mixture control 7 among the prime mixed cell A or the liquid mixture control 71 among the secondary mixed cell B, it both can be provided with independently of each other, also can be wholely set in the concentrated area; For example: the concentrated area is arranged in the industrial control computer; In any case but, they with each mixed cell in being connected of corresponding each parts, do not break away from the relation shown in each specific embodiment before this and the accompanying drawing 3,4,5.
The embodiment of above each liquid on-line hybrid system of the utility model has following advantage: owing to prime mixed cell, secondary units being connected and/or being arranged in parallel, make that the liquid mixing of prime is independent each other with secondary liquid mixture operation operation, be independent of each other.In addition, because any amount of prime mixed cell can adopt the parallel way at the same level of two kinds in the above-mentioned embodiment to connect, make in the secondary mixed cell that the quantity delivered of liquid to be mixed can be guaranteed in the corresponding buffer-stored jar, and then guaranteed the online uninterrupted production under the prerequisite that high accuracy is mixed of whole liquid on-line mixing system.Make this liquid on-line hybrid system can be applicable to various production-scale requirements.
Claims (9)
1. a multichannel liquid hybrid system has a plurality of preliminary treatment flow containers, wherein stores various liquid to be mixed; It is characterized in that: arbitrary preliminary treatment flow container connects a feed pump uniquely through pipeline, and the feed delivery side of pump is connected to blending tank through fluid pipeline; Described blending tank place is provided with one first LOAD CELLS, and weighing-up wave is connected to the liquid mixture control; Described liquid mixture control is electrically connected the mixing actuation means of each feed pump and blending tank.
2. system according to claim 1 is characterized in that: the range resolution of described first LOAD CELLS is less than or equal to 1/2
16
3. system according to claim 1 and 2 is characterized in that: described preliminary treatment flow container is provided with second LOAD CELLS, and the range resolution of this second LOAD CELLS is less than or equal to 1/2
16And output signal is connected to the liquid mixture control.
4. system according to claim 1 and 2 is characterized in that: described preliminary treatment flow container place is provided with a constent temperature heater, uses so that the temperature of the interior liquid to be mixed of pretreatment fluid jar remains within the stationary temperature scope.
5. a liquid on-line hybrid system is characterized in that: comprise an above prime mixed cell at least and secondary mixed cell more than; Described prime mixed cell and secondary mixed cell are made of multichannel liquid hybrid system respectively;
Described multichannel liquid hybrid system has a plurality of preliminary treatment flow containers, wherein stores various liquid to be mixed; Arbitrary preliminary treatment flow container connects a feed pump uniquely through pipeline, and the feed delivery side of pump is connected to blending tank through fluid pipeline; Described blending tank place is provided with one first LOAD CELLS, and weighing-up wave is connected to the liquid mixture control; Described liquid mixture control is electrically connected the mixing actuation means of each feed pump and blending tank;
The blending tank of arbitrary prime mixed cell is connected to a buffer-stored jar through an inter-stage feed pump, and the preliminary treatment flow container of this a buffer-stored jar and a level mixed cell is made as one.
6. system according to claim 5 is characterized in that: the blending tank of described a plurality of prime mixed cells is connected to a buffer-stored jar through an inter-stage feed pump respectively.
7. system according to claim 5 is characterized in that: the range resolution of described first LOAD CELLS is less than or equal to 1/2
16
8. according to claim 5 or 6 or 7 described systems, it is characterized in that: described preliminary treatment flow container and/or buffer-stored jar are provided with second LOAD CELLS, and the range resolution of this second LOAD CELLS is less than or equal to 1/2
16And output signal is connected to the liquid mixture control.
9. according to claim 5 or 6 or 7 described systems, it is characterized in that: described preliminary treatment flow container and/or buffer-stored jar place are provided with a constent temperature heater, use so that the temperature of pretreatment fluid jar and/or interior liquid to be mixed remains within the stationary temperature scope.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201819619U CN202087289U (en) | 2011-05-31 | 2011-05-31 | Multi-path liquid mixing system and liquid on-line mixing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201819619U CN202087289U (en) | 2011-05-31 | 2011-05-31 | Multi-path liquid mixing system and liquid on-line mixing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806027A (en) * | 2011-05-31 | 2012-12-05 | 王维加 | Multichannel liquid mixing system and online liquid mixing system |
| CN104338447A (en) * | 2013-08-01 | 2015-02-11 | 上海轻工业研究所有限公司 | On-line solution mixing device and method |
| CN112753771A (en) * | 2019-11-04 | 2021-05-07 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk preparation method and equipment |
-
2011
- 2011-05-31 CN CN2011201819619U patent/CN202087289U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806027A (en) * | 2011-05-31 | 2012-12-05 | 王维加 | Multichannel liquid mixing system and online liquid mixing system |
| CN102806027B (en) * | 2011-05-31 | 2016-01-20 | 王维加 | Multichannel mixing system and liquid on-line hybrid system |
| CN104338447A (en) * | 2013-08-01 | 2015-02-11 | 上海轻工业研究所有限公司 | On-line solution mixing device and method |
| CN112753771A (en) * | 2019-11-04 | 2021-05-07 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk preparation method and equipment |
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Address after: 100070 Beijing City, South West Fourth Ring Road, Fengtai District, No. 188 headquarters base area, building 18, No. 22 Patentee after: COMPASS AEROSPACE SATELLITE APPLICATION TECHNOLOGY GROUP CO., LTD. Address before: 100070 Beijing City, South West Fourth Ring Road, Fengtai District, No. 188 headquarters base area, building 18, No. 22 Patentee before: Beidou Aerospace (Beijing) satellite transmission technology service Co., Ltd. |
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Effective date of registration: 20161216 Address after: 519000 Guangdong province Zhuhai City Jiuzhou Road No. 1057 two Patentee after: Zhuhai Jie Cheng Cci Capital Ltd Address before: 100070 Beijing City, South West Fourth Ring Road, Fengtai District, No. 188 headquarters base area, building 18, No. 22 Patentee before: COMPASS AEROSPACE SATELLITE APPLICATION TECHNOLOGY GROUP CO., LTD. |
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Granted publication date: 20111228 |
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