CN101650058A - Dynamic ice storage unit and control method thereof - Google Patents
Dynamic ice storage unit and control method thereof Download PDFInfo
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- CN101650058A CN101650058A CN200810213051A CN200810213051A CN101650058A CN 101650058 A CN101650058 A CN 101650058A CN 200810213051 A CN200810213051 A CN 200810213051A CN 200810213051 A CN200810213051 A CN 200810213051A CN 101650058 A CN101650058 A CN 101650058A
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Abstract
The invention discloses a dynamic ice storage unit. The dynamic ice storage unit comprises a controller, a disturbance water pump, an ice storage tank, at least one set of secondary refrigerant coilsfor secondary refrigerant flow, and at least one sensor for testing temperature of a cold storage material. The secondary refrigerant coils are evenly arranged in the ice storage tank, the sensor andthe disturbance water pump are connected with the controller through data lines respectively, a water inlet of the disturbance water pump is connected with a water outlet at the bottom of the ice storage tank through a tube, a water outlet of the disturbance water pump is connected with a water inlet at the top of the ice storage tank through a tube, and the sensor(s) is/are evenly arranged in theice storage tank. The invention also relates to a control method of the ice storage unit. Time for the sensor(s) to collect data is set in the controller, the average value of collected temperature data is determined per minute by the controller, the disturbance water pump is started when difference between the maximum value of the temperature data collected by the sensor(s) and the average valueis more than 5 DEG C, and the disturbance water pump is turned off when the difference between the maximum value of the temperature data collected by the sensor(s) and the average value is less than2 DEG C.
Description
Technical field
The present invention relates to the method and apparatus of a kind of refrigeration or cold-storage, relate in particular to a kind of method or equipment of dynamic ice-storage.
Background technology
Existing ice storage unit is to utilize the electrical network cheap electric power of low-load period, and as night electricity, the cold of refrigeration system being produced by refrigerating medium (being generally glycol water) is stored in the water, water congeals into ice; And,, the cold in the ice is discharged, thereby reduce the electrical network high load capacity phase to the requirement of electric power, the air-conditioning system of realization power system " peak load shifting " as daytime in the electrical network high load capacity phase of electricity price costliness.In the area of power shortage, ice storage system can be realized " load shift "---the refrigeration duty of supply of electric power peak period is transferred to the electric load low-valley interval, improve efficiency of energy utilization, solve electric power peak period supply of electric power problem.Therefore, this technology has been subjected to the support energetically of the electric power policy of user's welcome and power department, develops rapidly at home.Because static ice-making system is simple, now become the main flow of ice storage system at present.Yet, static ice making method has the shortcoming of himself, thickening of ice sheet increases thermal resistance in Ice Storage Tank, cause the coefficient of refrigerating performance (COP) of refrigeration machine to reduce, also there is the inter-adhesive water route phenomenon of blocking that causes of ice cube in the static in addition ice-making system, not only the thermal efficiency is lower, causes energy waste, and also easy damage equipment is stopped up in the inter-adhesive water route that causes of ice cube.
Summary of the invention
The objective of the invention is to, a kind of dynamic ice storage unit is provided.
The present invention also provides a kind of control method of above-mentioned dynamic ice storage unit.
Technical problem to be solved by this invention is achieved through the following technical solutions: a kind of dynamic ice storage unit, it comprises controller, the disturbance water pump, Ice Storage Tank, the refrigerating medium coil pipe of at least one group of refrigerating medium that is used to circulate, and at least one is used to test the sensor of cool storage material temperature, the refrigerating medium coil pipe is evenly arranged in the Ice Storage Tank space, sensor is connected with controller by data wire respectively with the disturbance water pump, disturbance water pump water inlet port is connected by the water outlet port of pipeline with the Ice Storage Tank bottom, its water outlet port is connected with the entry port at Ice Storage Tank top by pipeline, and sensor is evenly arranged in the space of Ice Storage Tank.
Described refrigerating medium coil pipe is made up of water inlet pipe, return pipe that " U " type pipe and the diameter of diameter 9.525mm is 16mm, the two ends of " U " type pipe are connected with water inlet pipe, return pipe respectively, the quantity of " U " type pipe is determined by the required refrigerating capacity of reality on every row's refrigerating medium coil pipe, and described " U " type pipe is formed with the water inlet pipe that is connected to " U " type pipe two ends, return pipe.Described " U " type pipe adopts aluminum pipe, and described water inlet pipe, return pipe adopt aluminum pipe or copper pipe.Row's number of arranging described refrigerating medium coil pipe in Ice Storage Tank is also definite by the required refrigerating capacity of reality.
A kind of control method of above-mentioned dynamic ice storage unit, the per collection of carrying out a temperature data in 2 seconds of setting sensor in controller, controller was asked mean value in one minute one time to the every interval of the temperature data of being gathered, the maximum of the temperature data of gathering when sensor and the deviation of described mean value are sent enabling signal by controller and are started the disturbance water pump during greater than 5 ℃; The maximum of the temperature of gathering when sensor and the deviation of described mean value are sent shutdown signal by controller and are closed the disturbance water pump during less than 2 ℃.
The invention has the beneficial effects as follows that ice storage unit is when cold-storage or ice-melt, on the one hand controller controls the operation of disturbance water pump by the monitoring of temperature data that the sensor that distributes in the Ice Storage Tank is sensed and cuts out, thereby the cool storage material in the assurance Ice Storage Tank keeps even temperature, on the other hand because the effective area of refrigerating medium coil pipe is bigger, make heat exchange efficiency improve greatly, thereby avoided traditional thickening of the interior ice sheet of static ice-making system that thermal resistance is increased effectively, cause coefficient of refrigerating performance (COP) the reduction situation of refrigeration machine, also overcome the inter-adhesive water route phenomenon of blocking that causes of the ice cube that exists in the static ice-making system.
Description of drawings
Fig. 1 is refrigerating medium coil pipe front view of the present invention, side view, vertical view.
Fig. 2 is cloth 4 temperature point schematic diagrames in the dynamic ice storage unit of the present invention.
Fig. 3 is cloth 9 temperature point schematic diagrames in the dynamic ice storage unit of the present invention.
The specific embodiment
With reference to Fig. 1, refrigerating medium coil pipe 4 is made up of water inlet pipe 41, return pipe 42 that " U " type pipe 43 and the diameter of diameter 9.525mm is 16mm, the two ends of " U " type pipe 43 are connected with water inlet pipe 41, return pipe 42 respectively, and every row's refrigerating medium dish 4 pipes are made up of 40 " U " type pipes 43 and the water inlet pipe 41, the return pipe 42 that are connected to " U " type pipe 43 two ends.Described " U " type pipe 43 adopts aluminum pipe, and described water inlet pipe 41, return pipe 42 adopt aluminum pipe or copper pipe.
A kind of dynamic ice storage unit embodiment, referring to Fig. 2, it is PLC controller, water pump 2, Ice Storage Tank 3, refrigerating medium coil pipe 4, temperature sensor 5,6,7,8 that controller 1 is selected Programmable Logic Controller (Programmable logic Controller) for use, and corresponding pipeline and data wire.Temperature sensor 5,6,7,8 is arranged in the space of Ice Storage Tank 3 uniformly, adopt 20 row's refrigerating medium coil pipes 4 also evenly to be arranged in the space of Ice Storage Tank 3, the water inlet port of water pump 2 is connected by the water outlet port of pipeline with Ice Storage Tank 3 bottoms, the water outlet port of water pump 2 is connected with the water inlet port of Ice Storage Tank 3 by pipeline, makes water pump 2 and Ice Storage Tank 3 constitute closed loop.
In PLC controller 1, set: the time interval that temperature sensor transmits data be 2 seconds once, the data that transmitted were asked one time mean value every one minute.
Ice Storage Tank 3 is when cold-storage, the temperature sensor 5,6,7,8 that is evenly distributed in Ice Storage Tank 3 spaces detects the temperature of the cool storage material of its loca respectively, be sent in the PLC controller 1 detecting data then, by PLC controller 1 its data are handled, the maximum and the described mean value of its temperature are compared, when the deviation of temperature maximum and mean value during greater than 5 ℃, PLC controller 1 control water pump 2 brings into operation, cool storage material is carried out disturbance, make its uniformity of temperature profile; When the deviation of temperature maximum and mean value during less than 2 ℃, PLC controller 1 control water pump 2 is out of service, and constantly circulation goes round and begins again.Because the perturbation action of 2 pairs of cool storage materials of water pump forms cool storage material and ices slurry and can not form large-area ice cube.
Principle is the same during Ice Storage Tank 3 ice-melts.
With reference to Fig. 2, the another kind of embodiment of a kind of dynamic ice storage unit, it is DDC controller or single-chip computer control system that controller 1 is selected direct digital control system (Direct Digital Control) for use, on the basis of first kind of embodiment, temperature sensor in the Ice Storage Tank 3 set up and be nine and be evenly distributed in the space of Ice Storage Tank 3, because temperature point increases in the Ice Storage Tank 3, make the control to water pump 2 of controller 1 more accurate, thereby make the Temperature Distribution of the cool storage material in the Ice Storage Tank 3 more even.
Claims (6)
1, a kind of dynamic ice storage unit, it comprises controller (1), disturbance water pump (2), Ice Storage Tank (3), the refrigerating medium coil pipe (4) of at least one group of refrigerating medium that is used to circulate, and at least one is used to test the sensor (5) of cool storage material temperature, refrigerating medium coil pipe (4) is evenly arranged in Ice Storage Tank (3) space, sensor (5), disturbance water pump (2) is connected with controller (1) by data wire respectively, it is characterized in that, disturbance water pump (2) water inlet port is connected with the water outlet port of Ice Storage Tank (3) bottom, and the entry port at the water outlet port of disturbance water pump (2) and Ice Storage Tank (3) top connects and composes closed circuit; Sensor (5) is evenly arranged in the space of Ice Storage Tank (3).
2, a kind of dynamic ice storage unit according to claim 1 is characterized in that, described controller (1) is PLC controller, DDC controller or single-chip computer control system.
3, a kind of dynamic ice storage unit according to claim 1, it is characterized in that, refrigerating medium coil pipe (4) is made up of " U " type pipe (43) and water inlet pipe (41), return pipe (42), and the two ends of " U " type pipe (43) connect to form with water inlet pipe (41), return pipe (42) respectively.
4, a kind of dynamic ice storage unit according to claim 3 is characterized in that, the every row of described refrigerating medium coil pipe (4) goes up the quantity of " U " type pipe (43) and determines according to the required refrigerating capacity of reality.
5, a kind of dynamic ice storage unit according to claim 3 is characterized in that, it is the aluminum pipe of 9.525mm that described " U " type pipe (43) adopts diameter, and it is aluminum pipe or the copper pipe of 16mm that described water inlet pipe (41), return pipe (42) all adopt diameter.
6, a kind of control method of dynamic ice storage unit, it is characterized in that, setting sensor (5) in described controller (1), the per collection of carrying out a temperature data in 2 seconds of sensor (5), controller (1) was asked mean value in one minute one time to the every interval of the temperature data of being gathered, the maximum of the temperature data of being gathered when sensor (5) and the deviation of described mean value are sent enabling signal by controller (1) and are started disturbance water pump (2) during greater than 5 ℃; The maximum of the temperature of being gathered when sensor (5) and the deviation of described mean value are sent shutdown signal by controller (1) and are closed disturbance water pump (2) during less than 2 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810213051A CN101650058A (en) | 2008-08-16 | 2008-08-16 | Dynamic ice storage unit and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810213051A CN101650058A (en) | 2008-08-16 | 2008-08-16 | Dynamic ice storage unit and control method thereof |
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| CN101650058A true CN101650058A (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810213051A Pending CN101650058A (en) | 2008-08-16 | 2008-08-16 | Dynamic ice storage unit and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548613A (en) * | 2016-11-02 | 2017-03-29 | 中国人民解放军理工大学 | For the region microwave link networking signal pickup assembly and method of Rainfall estimation |
| CN107842974A (en) * | 2017-10-25 | 2018-03-27 | 珠海格力电器股份有限公司 | System and method for regulating and controlling running state of air conditioning equipment |
| CN112648786A (en) * | 2019-10-10 | 2021-04-13 | 中车石家庄车辆有限公司 | Method and device for determining cold charging capacity per unit time and computer equipment |
-
2008
- 2008-08-16 CN CN200810213051A patent/CN101650058A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548613A (en) * | 2016-11-02 | 2017-03-29 | 中国人民解放军理工大学 | For the region microwave link networking signal pickup assembly and method of Rainfall estimation |
| CN107842974A (en) * | 2017-10-25 | 2018-03-27 | 珠海格力电器股份有限公司 | System and method for regulating and controlling running state of air conditioning equipment |
| CN112648786A (en) * | 2019-10-10 | 2021-04-13 | 中车石家庄车辆有限公司 | Method and device for determining cold charging capacity per unit time and computer equipment |
| CN112648786B (en) * | 2019-10-10 | 2022-12-02 | 中车石家庄车辆有限公司 | Method and device for determining cold charging capacity per unit time and computer equipment |
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Open date: 20100217 |