CN203362480U - Direct-cooling cycle-type variable-frequency speed control system - Google Patents
Direct-cooling cycle-type variable-frequency speed control system Download PDFInfo
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- CN203362480U CN203362480U CN 201320462792 CN201320462792U CN203362480U CN 203362480 U CN203362480 U CN 203362480U CN 201320462792 CN201320462792 CN 201320462792 CN 201320462792 U CN201320462792 U CN 201320462792U CN 203362480 U CN203362480 U CN 203362480U
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- 238000001816 cooling Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 238000000034 method Methods 0.000 claims abstract description 41
- 239000000498 cooling water Substances 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 12
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical group C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to a direct-cooling cycle-type variable-frequency speed control system. The system comprises a cooling tower, process water equipment, a circulating water pump, a cold water tank, a controller, a frequency changer and a temperature sensor, wherein a water outlet pipe of the process water equipment is communicated with a hot water inlet of the cooling tower, a cold water outlet of the cooling tower is communicated with an water inlet pipe of the cold water tank, cold water in the cold water tank enters a water inlet pipe of the process water equipment through the circulating water pump; the system further comprises the frequency changer; a power output end of the frequency chamber is electrically connected with a power input end of the circulating water pump. As the control of the rotation speed of a motor of the circulating water pump is realized through adjusting the output running frequency of the frequency changer according to the temperature of the cold water flowing out from the water outlet pipe of the process water equipment, so that the amount of the cold water entering the water inlet pipe of the process water equipment, and the phenomenon of energy consumption and waste for transmission of the cooling water is avoided as much as possible.
Description
Technical field
The utility model relates to cooling system in industrial production or refrigeration process process, specifically refers to a kind of direct cool cycles frequency conversion speed-adjusting system.
Background technique
The used heat produced in industrial production or refrigeration process process, generally will lead away with cooling water.Drawing a certain amount of water in the natural water bodies such as ,He, lake, the Congjiang, sea as cooling water, be directly used in process for cooling equipment, after absorption used heat raises water temperature, then enter Jiang,He,Hu, sea, is exactly typically directly cooling.Another kind of common directly cooling, be the chilled water adopted through cooling tower cooling (or the water spray is cooling), be directly used in the process for cooling watering equipment, after absorption used heat raises water temperature, return cooling tower and carry out cooling (or the water spray is cooling) cooling, heat is discharged in atmosphere and goes.
Circulating water pump is the power equipment that cooling water is circulated.Usually, circulating water pump all carries out design selection according to maximum cooling water flow, and, with permanent rotating speed operation, cooling water flow is also invariable.Yet, unbalanced due to yielding capacity, and weather, temperature changes with seasonal variations, the heat load that industrial water equipment is discharged is real-time change, and the demand of cooling water flow is also changed.Obviously, when heat load is lighter, cooling water there is no need still to keep constant flow rate to supply with, and the conveying energy consumption of cooling water exists wasting phenomena.
Summary of the invention
The problems referred to above that exist for prior art, the purpose of this utility model is to provide a kind ofly can, according to the variation of yielding capacity and other external environments, adjust the direct cool cycles frequency conversion speed-adjusting system of cooling water quantity delivered in good time.
For achieving the above object, the utility model adopts following technological scheme: direct cool cycles frequency conversion speed-adjusting system, comprise cooling tower, process water equipment, circulating water pump and water cooling pond, the outlet pipe of described process water equipment is communicated with the cooling column hot water inlet, the cooling water outlet of cooling tower is communicated with the intake pipe of water cooling pond, cold water in water cooling pond enters the intake pipe of process water equipment through circulating water pump, also comprise frequency variator, the power output end of described frequency variator is electrically connected to the power input end of circulating water pump.During use, operator can set the output operation frequency of frequency variator according to the variation in current yielding capacity, weather, season according to experience.
As optimization, in order to adjust more accurately the output operation frequency of frequency variator, prevent as much as possible the conveying energy consumption wasting phenomena of cooling water, directly the cool cycles frequency conversion speed-adjusting system also comprises controller and temperature transducer, and described temperature transducer is arranged on the outlet pipe of process water equipment and its signals collecting end is positioned at the outlet pipe of process water equipment; The signal transmitting terminal of described temperature transducer and controller a signal input part communication connection, the control signal input end of described frequency variator and the communication connection of the control signal output terminal of controller.
As optimization, described controller carries out communication by the control signal input end of MODBUS agreement and frequency variator.
As optimization, directly the cool cycles frequency conversion speed-adjusting system also comprises control panel, another signal input part communication connection of the control signal input end of described control panel and controller.
With respect to prior art, the utlity model has following advantage: the direct cool cycles frequency conversion speed-adjusting system that the utility model provides, the water temperature of the cooling water flowed out according to the outlet pipe of the detected process water equipment of temperature transducer, adjust the operation frequency of frequency variator to water circulating pump motor output, thereby realize the control to the rotating speed of water circulating pump motor, thereby in time adjusted the cooling water that enters process water equipment intake pipe, as the case may be the cold water quantity delivered is adjusted, avoided as much as possible the conveying energy consumption waste of cooling water.
The accompanying drawing explanation
The theory diagram that Fig. 1 is embodiment.
In figure, cooling tower 1, water cooling pond 2, circulating water pump 3, process water equipment 4, frequency variator 5, temperature transducer 6, controller 7, control panel 8.In figure, the white hollow arrow means the signal transmission relation, and the solid black arrow means the current relation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
embodiment:referring to Fig. 1, a kind of direct cool cycles frequency conversion speed-adjusting system, comprise cooling tower 1, process water equipment 4, circulating water pump 3 and water cooling pond 2, the outlet pipe of process water equipment 4 is communicated with the cooling column hot water inlet, the cooling water outlet of cooling tower 1 is communicated with the intake pipe of water cooling pond 2, the outlet pipe of water cooling pond 2 is communicated with the water intake of circulating water pump 3, the intake pipe of process water equipment 4 is communicated with the water outlet of circulating water pump 3, make the cold water in water cooling pond 2 enter the intake pipe of process water equipment 4 through circulating water pump 3, also comprise frequency variator 5, the power output end of frequency variator 5 is electrically connected to the power input end of circulating water pump 3, by changing the output operation frequency of frequency variator 5, the control of realization to circulating water pump 3 motors speed, thereby reach the purpose that the flow of cold water in the intake pipe of process water equipment 4 is adjusted.
For better, adjust more accurately the flow of cold water in the intake pipe of watering equipment 4, directly the cool cycles frequency conversion speed-adjusting system can also comprise controller 7 and temperature transducer 6, temperature transducer 6 is arranged on the outlet pipe of process water equipment 4 and the signals collecting end of temperature transducer 6 is positioned at the outlet pipe of process water equipment 4, water temperature for detection of the flowing water of the outlet pipe of process water equipment 4, 7 one signal input part communication connections of the signal transmitting terminal of temperature transducer 6 and controller, the control signal input end of frequency variator 5 and the communication connection of the control signal output terminal of controller 7, controller 7 preferably carries out communication by the control signal input end of MODBUS agreement and frequency variator 5.The water temperature signal of the outlet pipe of the outflow process water equipment 4 gone out that the signals collecting end of temperature transducer 6 detects transfers to controller 7 through the signal transmitting terminal of temperature transducer 6, controller 7 is adjusted the operation frequency of frequency variator 5 according to the water temperature signal received, thereby adjust the output operation frequency of 5 pairs of circulating water pump 3 of frequency variator, the control of realization to circulating water pump 3 motors speed, thus realize the control to the flow of cold water in the intake pipe that enters process water equipment 4.
During concrete enforcement, can adopt following three kinds of modes to be controlled frequency variator 5 operation frequencies:
First kind of way, operator, according to self experience, manually set the output operation frequency of frequency variator 5 according to the variation in current yielding capacity, weather, season, thereby realize the control to circulating water pump 3 machine rotating speeds, reach the purpose of regulating the cold water quantity delivered.
The second way presets a desired temperature T in controller 7
0, the water temperature T of the flowing water of the outlet pipe of the process water equipment 4 that temperature transducer 6 is detected (for ease of narration, hereinafter referred to as checkout value T) and this desired temperature T
0compare, controller 7 is made corresponding reaction according to comparative result, by specific as follows:
When checkout value T is greater than water temperature setting value T
0the time, controller 7 is controlled frequency variators 5 and is improved output frequencies, thereby the rotating speed of circulating water pump 3 motor improves, and the cold water flow entered in the intake pipe of process water equipment 4 increases, the cooling water temperature flowed out from the outlet pipe of process water equipment 4 reduces, and is tending towards gradually setting value T
0.
When checkout value T is less than water temperature setting value T
0the time, controller 7 is controlled frequency variators 5 and is reduced output frequencies, thereby the rotating speed of circulating water pump 3 motor reduces, and the cold water flow entered in the intake pipe of process water equipment 4 reduces, the cooling water temperature flowed out from the outlet pipe of process water equipment 4 increases, and is tending towards gradually setting value T
0.
The third mode: when this mode is controlled frequency variator 5 operation frequencies, directly the cool cycles frequency conversion speed-adjusting system need also comprise control panel 8, the control signal input end of control panel 8 and controller 7 another signal input part communication connections.The water temperature T of the flowing water of the outlet pipe of the process water equipment 4 that the personnel of controlling can detect according to temperature transducer 6, frequency at control panel 8 direct input converters 5, the frequency of input is controlled by 7 pairs of frequency variator 5 output powers of controller again, thereby adjusted the output frequency of circulating water pump 3, the control of realization to circulating water pump 3 motors speed, finally realized real-time adjustment to the cold water quantity delivered.
The controller of mentioning in the utility model can be the single-chip microcomputer that can carry out above-mentioned comparing function in prior art, and frequency variator and control panel are prior art.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a direct cool cycles frequency conversion speed-adjusting system, comprise cooling tower (1), process water equipment (4), circulating water pump (3) and water cooling pond (2), the outlet pipe of described process water equipment (4) is communicated with the cooling column hot water inlet, the cooling water outlet of cooling tower (1) is communicated with the intake pipe of water cooling pond (2), cold water in water cooling pond (2) enters the intake pipe of process water equipment (4) through circulating water pump (3), it is characterized in that: also comprise frequency variator (5), the power output end of described frequency variator (5) is electrically connected to the power input end of circulating water pump (3).
2. direct cool cycles frequency conversion speed-adjusting system as claimed in claim 1, it is characterized in that: also comprise controller (7) and temperature transducer (6), described temperature transducer (6) is arranged on the outlet pipe of process water equipment (4) and its signals collecting end is positioned at the outlet pipe of process water equipment (4); (7) signal input part communication connections of the signal transmitting terminal of described temperature transducer (6) and controller, the control signal output terminal communication connection of the control signal input end of described frequency variator (5) and controller (7).
3. direct cool cycles frequency conversion speed-adjusting system as claimed in claim 2, it is characterized in that: described controller (7) carries out communication by the control signal input end of MODBUS agreement and frequency variator (5).
4. direct cool cycles frequency conversion speed-adjusting system as described as claim 1-3 any one, is characterized in that: also comprise control panel (8), another signal input part communication connection of the control signal input end of described control panel and controller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320462792 CN203362480U (en) | 2013-07-31 | 2013-07-31 | Direct-cooling cycle-type variable-frequency speed control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320462792 CN203362480U (en) | 2013-07-31 | 2013-07-31 | Direct-cooling cycle-type variable-frequency speed control system |
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| Publication Number | Publication Date |
|---|---|
| CN203362480U true CN203362480U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320462792 Expired - Fee Related CN203362480U (en) | 2013-07-31 | 2013-07-31 | Direct-cooling cycle-type variable-frequency speed control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105123899A (en) * | 2015-09-29 | 2015-12-09 | 北京市农林科学院 | Cold water cooling method for fruits and vegetables |
| CN105166021A (en) * | 2015-09-29 | 2015-12-23 | 北京市农林科学院 | Device for cooling fruits and vegetables with cold water |
| CN114210087A (en) * | 2021-12-13 | 2022-03-22 | 江西赣锋锂业股份有限公司 | Non-medium freezing crystallization system |
-
2013
- 2013-07-31 CN CN 201320462792 patent/CN203362480U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105123899A (en) * | 2015-09-29 | 2015-12-09 | 北京市农林科学院 | Cold water cooling method for fruits and vegetables |
| CN105166021A (en) * | 2015-09-29 | 2015-12-23 | 北京市农林科学院 | Device for cooling fruits and vegetables with cold water |
| CN114210087A (en) * | 2021-12-13 | 2022-03-22 | 江西赣锋锂业股份有限公司 | Non-medium freezing crystallization system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20200731 |