CN105444482A - Water-cooling water chilling unit and energy-saving operation control method thereof - Google Patents
Water-cooling water chilling unit and energy-saving operation control method thereof Download PDFInfo
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- CN105444482A CN105444482A CN201510924883.XA CN201510924883A CN105444482A CN 105444482 A CN105444482 A CN 105444482A CN 201510924883 A CN201510924883 A CN 201510924883A CN 105444482 A CN105444482 A CN 105444482A
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- water
- cooled chiller
- temperature
- water cooled
- chilled
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/13—Pump speed control
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a water-cooling water chilling unit and an energy-saving operation control method thereof. The method comprises the following steps that the chilled water outlet water temperature of the water-cooling water chilling unit is detected in real time; when the chilled water outlet water temperature of the water-cooling water chilling unit is lower than a first preset temperature, the water-cooling water chilling unit is controlled to execute an unloading action, and the current load of the water-cooling water chilling unit is judged; and if the current load of the water-cooling water chilling unit is less than or equal to the minimum allowable operation load of the water-cooling water chilling unit, a compressor in the water-cooling water chilling unit is controlled to be stopped, and a water-cooling water pump and a cooling tower fan in the water-cooling water chilling unit are shut down. According to the method, frequent alarming and shutdown of the water-cooling water chilling unit can be effectively avoided; the reliability of the water-cooling water chilling unit is improved, and the service life of the water-cooling water chilling unit is prolonged. Meanwhile, the energy resource waste is reduced, the user application cost is reduced, and the user experience is improved.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly a kind of saving-energy operation control method of water cooled chiller and a kind of water cooled chiller.
Background technology
Usually, in operation of air conditioner process, if customer charge is smaller, then the target temperature that chilled water leaving water temperature sets lower than user often can be there is.
In correlation technique, when the target temperature that chilled water leaving water temperature sets lower than user, and when unit has reached minimum load, control unit with minimum load operation, until unit error protection is shut down.Which will cause the frequent fault alarm of unit to shut down, and greatly reduce Consumer's Experience, and cause energy waste.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason; one object of the present invention is a kind of saving-energy operation control method proposing water cooled chiller; water cooled chiller can be effectively avoided to occur frequently reporting to the police shutdown; improve reliability and the service life of water cooled chiller; decrease energy waste simultaneously; decrease customer using cost, improve Consumer's Experience.
Another object of the present invention is to propose a kind of water cooled chiller.
For achieving the above object, one aspect of the present invention embodiment proposes a kind of saving-energy operation control method of water cooled chiller, comprises the following steps: S1, detects the chilled water leaving water temperature of described water cooled chiller in real time; S2, when the chilled water leaving water temperature of described water cooled chiller is less than the first preset temperature, controls described water cooled chiller and performs uninstall action, and judge the current loads of described water cooled chiller; S3; if the current loads of described water cooled chiller is less than or equal to the minimum permission operating load of described water cooled chiller; then control the compressor shutdown in described water cooled chiller, and the cooling water water pump of closing in described water cooled chiller and blower fan of cooling tower.
The saving-energy operation control method of the water cooled chiller of the embodiment of the present invention, when the chilled water leaving water temperature of water cooled chiller is less than the first preset temperature, and when the current loads of water cooled chiller is less than or equal to the minimum permission operating load of water cooled chiller, control the compressor shutdown in water cooled chiller, and the cooling water water pump of closing in water cooled chiller and blower fan of cooling tower, effectively prevent when customer charge is less, the shutdown and the water cooled chiller that water cooled chiller causes when being in minimum load operation state is frequently reported to the police always, the problem of energy waste, thus improve Consumer's Experience, decrease customer using cost, improve reliability and the service life of water cooled chiller simultaneously.
According to one embodiment of present invention, after step s 3, also comprise: the chilled water return water temperature detecting described water cooled chiller in real time, and calculate the temperature rise rate of change of chilled water return water temperature according to the chilled water return water temperature of described water cooled chiller; When the temperature rise rate of change of described chilled water return water temperature is less than default rate of change, if the chilled water return water temperature of described water cooled chiller goes back up to compressor and restarts preset temperature, then control described compressor to restart, and open described cooling water water pump and blower fan of cooling tower.
According to one embodiment of present invention, when the chilled water return water temperature of described water cooled chiller be less than described compressor restart preset temperature time, if the temperature rise rate of change of described chilled water return water temperature is more than or equal to described default rate of change, then control described compressor to restart, and open described cooling water water pump and blower fan of cooling tower.
According to one embodiment of present invention, after described compressor is restarted, also control described water cooled chiller and restart strategy execution add uninstall action according to adjusting.
For achieving the above object, the present invention on the other hand embodiment proposes a kind of water cooled chiller, comprising: compressor; Cooling water water pump; Blower fan of cooling tower; First temperature detecting module, described first temperature detecting module is used for the chilled water leaving water temperature detecting described water cooled chiller in real time; Control module; described control module is used for controlling described water cooled chiller when the chilled water leaving water temperature of described water cooled chiller is less than the first preset temperature and performs uninstall action; and the current loads of described water cooled chiller is judged; and when the current loads of described water cooled chiller is less than or equal to the minimum permission operating load of described water cooled chiller; described control module controls described compressor shutdown, and closes described cooling water water pump and blower fan of cooling tower.
The water cooled chiller of the embodiment of the present invention, when the chilled water leaving water temperature of water cooled chiller is less than the first preset temperature, and when the current loads of water cooled chiller is less than or equal to the minimum permission operating load of water cooled chiller, control module controls the compressor shutdown in water cooled chiller, and the cooling water water pump of closing in water cooled chiller and blower fan of cooling tower, effectively prevent when customer charge is less, the shutdown and the water cooled chiller that water cooled chiller causes when being in minimum load operation state is frequently reported to the police always, the problem of energy waste, thus improve Consumer's Experience, decrease customer using cost, improve reliability and the service life of water cooled chiller simultaneously.
According to one embodiment of present invention, above-mentioned water cooled chiller, also comprise: the second temperature detecting module, described second temperature detecting module is used for the chilled water return water temperature detecting described water cooled chiller in real time, wherein, described control module calculates the temperature rise rate of change of chilled water return water temperature according to the chilled water return water temperature of described water cooled chiller, and in described compressor shutdown, and after described cooling water water pump and blower fan of cooling tower close, if the temperature rise rate of change of described chilled water return water temperature is less than default rate of change and the chilled water return water temperature of described water cooled chiller goes back up to compressor restarts preset temperature, described control module controls described compressor and restarts, and open described cooling water water pump and blower fan of cooling tower.
According to one embodiment of present invention; in described compressor shutdown and after described cooling water water pump and blower fan of cooling tower close; if the chilled water return water temperature of described water cooled chiller is less than described compressor and restarts preset temperature and the temperature rise rate of change of described chilled water return water temperature is more than or equal to described default rate of change; described control module controls described compressor and restarts, and opens described cooling water water pump and blower fan of cooling tower.
According to one embodiment of present invention, after described compressor is restarted, described control module also controls described water cooled chiller and restarts strategy execution add uninstall action according to adjusting.
According to one embodiment of present invention, described first temperature detecting module is arranged on the water outlet of evaporimeter in described water cooled chiller.
According to one embodiment of present invention, described second temperature detecting module is arranged on the water inlet of evaporimeter in described water cooled chiller.
Accompanying drawing explanation
Fig. 1 is the flow chart of the saving-energy operation control method of water cooled chiller according to the embodiment of the present invention.
Fig. 2 is the block diagram of the water cooled chiller according to the embodiment of the present invention.
Fig. 3 is the block diagram of water cooled chiller according to an embodiment of the invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings saving-energy operation control method and the water cooled chiller of the water cooled chiller proposed according to the embodiment of the present invention are described.
Fig. 1 is the flow chart of the saving-energy operation control method of water cooled chiller according to the embodiment of the present invention.As shown in Figure 1, the saving-energy operation control method of this water cooled chiller comprises the following steps:
S1, detects the chilled water leaving water temperature of water cooled chiller in real time.
Particularly, chilled water leaving water temperature can be detected in real time by the temperature sensor being arranged on the water outlet of evaporimeter in water cooled chiller.
S2, when the chilled water leaving water temperature of water cooled chiller is less than the first preset temperature, controls water cooled chiller and performs uninstall action, and judge the current loads of water cooled chiller.Wherein, the first preset temperature is water cooled chiller corresponding temperature value when needing to unload, and such as, the first preset temperature can be the target temperature of user's setting and the difference of default temperature deviation threshold value.
S3, if the current loads of water cooled chiller is less than or equal to the minimum permission operating load of water cooled chiller, then controls the compressor shutdown in water cooled chiller, and the cooling water water pump of closing in water cooled chiller and blower fan of cooling tower.
Particularly, in water cooled chiller running, detect chilled water leaving water temperature in real time and it is judged.If chilled water leaving water temperature is greater than the second preset temperature, then control water cooled chiller and perform loading action, wherein, second preset temperature is water cooled chiller corresponding temperature value when needing to load, such as, the second preset temperature can be the target temperature of user's setting and the temperature deviation threshold value sum preset; If chilled water leaving water temperature is less than the first preset temperature, then control water cooled chiller and perform uninstall action, and whether the current loads judging water cooled chiller is minimum permission operating load.If current loads is minimum permission operating load and chilled water leaving water temperature is less than the first preset temperature; then control compressor shutdown; and close cooling water water pump and blower fan of cooling tower; effectively prevent when customer charge is less; the problem of shutdown, energy waste and the water cooled chiller that water cooled chiller causes when being in minimum load operation state is frequently reported to the police always; improve Consumer's Experience, decrease customer using cost, improve reliability and the service life of water cooled chiller simultaneously.
According to one embodiment of present invention, after step s 3, the saving-energy operation control method of above-mentioned water cooled chiller also comprises: the chilled water return water temperature detecting water cooled chiller in real time, and calculates the temperature rise rate of change of chilled water return water temperature according to the chilled water return water temperature of water cooled chiller; When the temperature rise rate of change of chilled water return water temperature is less than default rate of change, if the chilled water return water temperature of water cooled chiller goes back up to compressor restart preset temperature, then control compressor and restart, and open cooling water water pump and blower fan of cooling tower.Wherein, chilled water return water temperature can be detected by the temperature sensor being arranged on the water inlet of evaporimeter in water cooled chiller and obtain.Default rate of change and compressor are restarted preset temperature and can be demarcated according to actual conditions.
According to one embodiment of present invention, when the chilled water return water temperature of water cooled chiller be less than compressor restart preset temperature time, if the temperature rise rate of change of chilled water return water temperature is more than or equal to default rate of change, then control compressor to restart, and open cooling water water pump and blower fan of cooling tower.
Particularly; consider when the target temperature that chilled water leaving water temperature sets lower than user in correlation technique, and when unit has reached minimum load, control the compressor shutdown in unit; and after chilled water leaving water temperature meets the condition that compressor starts again, control compressor start.Although which can prevent the frequent fault alarm of unit from shutting down, if preset temperature restarted by compressor arranged the high frequent start and stop that young pathbreaker causes; If compressor is restarted preset temperature and arranged senior general and cause chilled water leaving water temperature in a period of time too high, affect user's comfortableness.
For this reason, in an embodiment of the present invention, in control compressor shutdown, and after closing cooling water water pump and blower fan of cooling tower, detect chilled water return water temperature in real time and it is judged.If the temperature rise rate of change of chilled water return water temperature is less than default rate of change, and chilled water return water temperature restarts preset temperature higher than compressor, or chilled water return water temperature is less than compressor and restarts preset temperature, and the temperature rise rate of change of chilled water return water temperature is more than or equal to default rate of change, then control compressor to restart, and open cooling water water pump and blower fan of cooling tower, thus effectively avoid restarting preset temperature because of compressor too small and high frequent start and stop that are that cause are set, and restart preset temperature because of compressor and arrange excessive and cause chilled water leaving water temperature in a period of time too high, thus affect user's comfortableness, simultaneously, due in compressor shutdown process, cooling water water pump and blower fan of cooling tower are all in closed condition, thus reduce energy waste, decrease customer using cost, improve Consumer's Experience.
According to one embodiment of present invention, after compressor is restarted, also control water cooled chiller and restart strategy execution add uninstall action according to adjusting.
Particularly, after compressor is restarted, water cooled chiller execution can be controlled according to the chilled water leaving water temperature detected in real time and add uninstall action.
In sum, the saving-energy operation control method of the water cooled chiller of the embodiment of the present invention, when the chilled water leaving water temperature of water cooled chiller is less than the first preset temperature, and when the current loads of water cooled chiller is less than or equal to the minimum permission operating load of water cooled chiller, control the compressor shutdown in water cooled chiller, and the cooling water water pump of closing in water cooled chiller and blower fan of cooling tower, and the temperature rise rate of change of chilled water return water temperature and chilled water return water temperature meet impose a condition time, control compressor start, and open cooling water water pump and blower fan of cooling tower.Effectively prevent frequently report to the police shutdown, high frequent of water cooled chiller to start and the problem of energy waste, improve Consumer's Experience, decrease customer using cost, improve reliability and the service life of water cooled chiller simultaneously.
Fig. 2 is the block diagram of the water cooled chiller according to the embodiment of the present invention.As shown in Figure 2, this water cooled chiller comprises: compressor 10, cooling water water pump 20, blower fan of cooling tower 30, first temperature detecting module 40 and control module 50.
Wherein, the first temperature detecting module 40 is for detecting the chilled water leaving water temperature of water cooled chiller in real time.Control module 50 performs uninstall action for controlling water cooled chiller when the chilled water leaving water temperature of water cooled chiller is less than the first preset temperature; and the current loads of water cooled chiller is judged; and when the current loads of water cooled chiller is less than or equal to the minimum permission operating load of water cooled chiller; control module 50 controls compressor 10 and shuts down, and closes cooling water water pump 20 and blower fan of cooling tower 30.Wherein, the first preset temperature is water cooled chiller corresponding temperature value when needing to unload, and such as, the first preset temperature can be the target temperature of user's setting and the difference of default temperature deviation threshold value.
According to one embodiment of present invention, the first temperature detecting module 40 is arranged on the water outlet of evaporimeter in water cooled chiller.
Particularly, in water cooled chiller running, detect chilled water leaving water temperature in real time by the first temperature detecting module 40.When chilled water leaving water temperature is greater than the second preset temperature, control module 50 controls water cooled chiller and performs loading action, wherein, second preset temperature is water cooled chiller corresponding temperature value when needing to load, such as, the second preset temperature can be the target temperature of user's setting and the temperature deviation threshold value sum preset; When chilled water leaving water temperature is less than the first preset temperature, control module 50 controls water cooled chiller and performs uninstall action, and whether the current loads judging water cooled chiller is minimum permission operating load.When current loads is minimum permission operating load and chilled water leaving water temperature is less than the first preset temperature; control module 50 controls compressor 10 and shuts down; and close cooling water water pump 20 and blower fan of cooling tower 30; effectively prevent when customer charge is less; the problem of shutdown, energy waste and the water cooled chiller that water cooled chiller causes when being in minimum load operation state is frequently reported to the police always; improve Consumer's Experience; decrease customer using cost, improve reliability and the service life of water cooled chiller simultaneously.
According to one embodiment of present invention, as shown in Figure 3, above-mentioned water cooled chiller also comprises: the second temperature detecting module 60, second temperature detecting module 60 is for detecting the chilled water return water temperature of water cooled chiller in real time, wherein, control module 50 calculates the temperature rise rate of change of chilled water return water temperature according to the chilled water return water temperature of water cooled chiller, and shut down at compressor 10, and after cooling water water pump 20 and blower fan of cooling tower 30 close, if the temperature rise rate of change of chilled water return water temperature is less than default rate of change and the chilled water return water temperature of water cooled chiller goes back up to compressor restarts preset temperature, control module 50 controls compressor 10 and restarts, and open cooling water water pump 20 and blower fan of cooling tower 30.
According to one embodiment of present invention; after compressor 10 is shut down and cooling water water pump 20 and blower fan of cooling tower 30 are closed; if the chilled water return water temperature of water cooled chiller is less than compressor and restarts preset temperature and the temperature rise rate of change of chilled water return water temperature is more than or equal to default rate of change; control module 50 controls compressor 10 and restarts, and opens cooling water water pump 20 and blower fan of cooling tower 30.
According to one embodiment of present invention, the second temperature detecting module arrange 60 in water cooled chiller the water inlet of evaporimeter.
Particularly; consider when the target temperature that chilled water leaving water temperature sets lower than user in correlation technique, and when unit has reached minimum load, control the compressor shutdown in unit; and after chilled water leaving water temperature meets the condition that compressor starts again, control compressor start.Although which can prevent the frequent fault alarm of unit from shutting down, if preset temperature restarted by compressor arranged the high frequent start and stop that young pathbreaker causes; If compressor is restarted preset temperature and arranged senior general and cause chilled water leaving water temperature in a period of time too high, affect user's comfortableness.
For this reason, in an embodiment of the present invention, control compressor 10 in control module 50 and shut down, and after closing cooling water water pump 20 and blower fan of cooling tower 30, detect chilled water return water temperature in real time by the second temperature detecting module 60.When the temperature rise rate of change of chilled water return water temperature is less than default rate of change, and chilled water return water temperature is when restarting preset temperature higher than compressor, or restart preset temperature when chilled water return water temperature is less than compressor, and the temperature rise rate of change of chilled water return water temperature is when being more than or equal to default rate of change, control module 50 controls compressor 10 and restarts, and open cooling water water pump 20 and blower fan of cooling tower 30, thus effectively avoid restarting preset temperature because of compressor too small and high frequent start and stop that are that cause are set, and restart preset temperature because of compressor and arrange excessive and cause chilled water leaving water temperature in a period of time too high, thus affect user's comfortableness, simultaneously, due in compressor shutdown process, cooling water water pump and blower fan of cooling tower are all in closed condition, thus reduce energy waste, decrease customer using cost, improve Consumer's Experience.
According to one embodiment of present invention, after compressor 10 is restarted, control module 50 also controls water cooled chiller and restarts strategy execution add uninstall action according to adjusting.
Particularly, after compressor 10 is restarted, water cooled chiller execution can be controlled according to the chilled water leaving water temperature detected in real time and add uninstall action.
The water cooled chiller of the embodiment of the present invention; when the chilled water leaving water temperature of water cooled chiller is less than the first preset temperature; and when the current loads of water cooled chiller is less than or equal to the minimum permission operating load of water cooled chiller; control module controls the compressor shutdown in water cooled chiller; and the cooling water water pump of closing in water cooled chiller and blower fan of cooling tower; and the temperature rise rate of change of chilled water return water temperature and chilled water return water temperature meet impose a condition time; control compressor start, and open cooling water water pump and blower fan of cooling tower.Thus effectively prevent frequently report to the police shutdown, high frequent of water cooled chiller and start and the problem of energy waste, improve Consumer's Experience, decrease customer using cost, improve reliability and the service life of water cooled chiller simultaneously.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a saving-energy operation control method for water cooled chiller, is characterized in that, comprise the following steps:
S1, detects the chilled water leaving water temperature of described water cooled chiller in real time;
S2, when the chilled water leaving water temperature of described water cooled chiller is less than the first preset temperature, controls described water cooled chiller and performs uninstall action, and judge the current loads of described water cooled chiller;
S3; if the current loads of described water cooled chiller is less than or equal to the minimum permission operating load of described water cooled chiller; then control the compressor shutdown in described water cooled chiller, and the cooling water water pump of closing in described water cooled chiller and blower fan of cooling tower.
2. the saving-energy operation control method of water cooled chiller as claimed in claim 1, is characterized in that, after step s 3, also comprise:
The chilled water return water temperature of the described water cooled chiller of real-time detection, and the temperature rise rate of change calculating chilled water return water temperature according to the chilled water return water temperature of described water cooled chiller;
When the temperature rise rate of change of described chilled water return water temperature is less than default rate of change, if the chilled water return water temperature of described water cooled chiller goes back up to compressor and restarts preset temperature, then control described compressor to restart, and open described cooling water water pump and blower fan of cooling tower.
3. the saving-energy operation control method of water cooled chiller as claimed in claim 2, it is characterized in that, when the chilled water return water temperature of described water cooled chiller be less than described compressor restart preset temperature time, if the temperature rise rate of change of described chilled water return water temperature is more than or equal to described default rate of change, then control described compressor to restart, and open described cooling water water pump and blower fan of cooling tower.
4. the saving-energy operation control method of as claimed in claim 2 or claim 3 water cooled chiller, is characterized in that, after described compressor is restarted, also controls described water cooled chiller and restarts strategy execution add uninstall action according to adjusting.
5. a water cooled chiller, is characterized in that, comprising:
Compressor;
Cooling water water pump;
Blower fan of cooling tower;
First temperature detecting module, described first temperature detecting module is used for the chilled water leaving water temperature detecting described water cooled chiller in real time;
Control module; described control module is used for controlling described water cooled chiller when the chilled water leaving water temperature of described water cooled chiller is less than the first preset temperature and performs uninstall action; and the current loads of described water cooled chiller is judged; and when the current loads of described water cooled chiller is less than or equal to the minimum permission operating load of described water cooled chiller; described control module controls described compressor shutdown, and closes described cooling water water pump and blower fan of cooling tower.
6. water cooled chiller as claimed in claim 5, is characterized in that, also comprise:
Second temperature detecting module, described second temperature detecting module is used for the chilled water return water temperature detecting described water cooled chiller in real time, wherein, described control module calculates the temperature rise rate of change of chilled water return water temperature according to the chilled water return water temperature of described water cooled chiller, and in described compressor shutdown, and after described cooling water water pump and blower fan of cooling tower close, if the temperature rise rate of change of described chilled water return water temperature is less than default rate of change and the chilled water return water temperature of described water cooled chiller goes back up to compressor restarts preset temperature, described control module controls described compressor and restarts, and open described cooling water water pump and blower fan of cooling tower.
7. water cooled chiller as claimed in claim 6; it is characterized in that; in described compressor shutdown and after described cooling water water pump and blower fan of cooling tower close; if the chilled water return water temperature of described water cooled chiller is less than described compressor and restarts preset temperature and the temperature rise rate of change of described chilled water return water temperature is more than or equal to described default rate of change; described control module controls described compressor and restarts, and opens described cooling water water pump and blower fan of cooling tower.
8. water cooled chiller as claimed in claims 6 or 7, is characterized in that, after described compressor is restarted, described control module also controls described water cooled chiller and restarts strategy execution add uninstall action according to adjusting.
9. water cooled chiller as claimed in claim 6, it is characterized in that, described first temperature detecting module is arranged on the water outlet of evaporimeter in described water cooled chiller.
10. water cooled chiller as claimed in claim 7, it is characterized in that, described second temperature detecting module is arranged on the water inlet of evaporimeter in described water cooled chiller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510924883.XA CN105444482B (en) | 2015-12-11 | 2015-12-11 | Water cooled chiller and its saving-energy operation control method |
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| CN201510924883.XA CN105444482B (en) | 2015-12-11 | 2015-12-11 | Water cooled chiller and its saving-energy operation control method |
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| CN105444482A true CN105444482A (en) | 2016-03-30 |
| CN105444482B CN105444482B (en) | 2019-01-18 |
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| CN106196783A (en) * | 2016-06-28 | 2016-12-07 | 青岛海尔空调电子有限公司 | The control method of a kind of module unit, control device and module unit |
| CN106288568A (en) * | 2016-07-22 | 2017-01-04 | 珠海格力电器股份有限公司 | The high voltage protective control method of central air-conditioning compressor and device |
| CN106403175A (en) * | 2016-09-12 | 2017-02-15 | 珠海格力电器股份有限公司 | Control method of water chilling unit, and water chilling unit |
| CN107024003A (en) * | 2017-05-09 | 2017-08-08 | 珠海格力电器股份有限公司 | Hot water units control method, device, system and Hot water units |
| CN107449107A (en) * | 2017-07-13 | 2017-12-08 | 珠海格力电器股份有限公司 | Multimode air-conditioner set water pump dispatch control method, water pump system and air-conditioner set |
| CN107461970A (en) * | 2017-07-19 | 2017-12-12 | 青岛海尔空调电子有限公司 | A kind of water chilling unit control method with evaporative condenser |
| CN107906670A (en) * | 2017-11-13 | 2018-04-13 | 南京天加环境科技有限公司 | A kind of quick loading control method of modularization cold water heat pump unit |
| CN108444159A (en) * | 2018-03-20 | 2018-08-24 | 珠海格力电器股份有限公司 | Air conditioning control method and device, air-conditioning |
| CN109186018A (en) * | 2018-08-23 | 2019-01-11 | 重庆美的通用制冷设备有限公司 | Water cooler and the method, apparatus for controlling water cooler |
| CN109764586A (en) * | 2018-12-04 | 2019-05-17 | 珠海格力电器股份有限公司 | A kind of unit start-up control method and device adapting to variable-flow |
| CN110068107A (en) * | 2019-04-08 | 2019-07-30 | 广东纽恩泰新能源科技发展有限公司 | A kind of modularity control method |
| CN110726234A (en) * | 2019-10-14 | 2020-01-24 | 珠海格力电器股份有限公司 | Load control method and device for improving load stability of unit and unit |
| CN110953778A (en) * | 2019-12-17 | 2020-04-03 | 重庆美的通用制冷设备有限公司 | Control method and system of refrigeration equipment, refrigeration equipment and readable storage medium |
| CN110986254A (en) * | 2019-11-25 | 2020-04-10 | 珠海格力电器股份有限公司 | Water multi-connected air conditioner control method, computer readable storage medium and air conditioner |
| CN114521225A (en) * | 2020-08-27 | 2022-05-20 | 三菱电机株式会社 | Air conditioner |
| WO2023005451A1 (en) * | 2021-07-30 | 2023-02-02 | 青岛海尔空调电子有限公司 | Control method for water chilling unit |
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| CN106196783A (en) * | 2016-06-28 | 2016-12-07 | 青岛海尔空调电子有限公司 | The control method of a kind of module unit, control device and module unit |
| CN106196783B (en) * | 2016-06-28 | 2020-02-28 | 青岛海尔空调电子有限公司 | Control method and control device of module unit and module unit |
| CN106288568A (en) * | 2016-07-22 | 2017-01-04 | 珠海格力电器股份有限公司 | The high voltage protective control method of central air-conditioning compressor and device |
| CN106288568B (en) * | 2016-07-22 | 2019-08-20 | 珠海格力电器股份有限公司 | The high voltage protective control method and device of central air-conditioning compressor |
| CN106403175A (en) * | 2016-09-12 | 2017-02-15 | 珠海格力电器股份有限公司 | Control method of water chilling unit, and water chilling unit |
| CN107024003A (en) * | 2017-05-09 | 2017-08-08 | 珠海格力电器股份有限公司 | Hot water units control method, device, system and Hot water units |
| CN107449107B (en) * | 2017-07-13 | 2019-07-23 | 珠海格力电器股份有限公司 | Multimode air-conditioner set water pump dispatch control method, water pump system and air-conditioner set |
| CN107449107A (en) * | 2017-07-13 | 2017-12-08 | 珠海格力电器股份有限公司 | Multimode air-conditioner set water pump dispatch control method, water pump system and air-conditioner set |
| CN107461970A (en) * | 2017-07-19 | 2017-12-12 | 青岛海尔空调电子有限公司 | A kind of water chilling unit control method with evaporative condenser |
| CN107461970B (en) * | 2017-07-19 | 2021-09-21 | 青岛海尔空调电子有限公司 | Control method of water chilling unit with evaporative condenser |
| CN107906670A (en) * | 2017-11-13 | 2018-04-13 | 南京天加环境科技有限公司 | A kind of quick loading control method of modularization cold water heat pump unit |
| CN108444159B (en) * | 2018-03-20 | 2019-11-08 | 珠海格力电器股份有限公司 | Air conditioning control method and device, air-conditioning |
| CN108444159A (en) * | 2018-03-20 | 2018-08-24 | 珠海格力电器股份有限公司 | Air conditioning control method and device, air-conditioning |
| CN109186018A (en) * | 2018-08-23 | 2019-01-11 | 重庆美的通用制冷设备有限公司 | Water cooler and the method, apparatus for controlling water cooler |
| CN109764586A (en) * | 2018-12-04 | 2019-05-17 | 珠海格力电器股份有限公司 | A kind of unit start-up control method and device adapting to variable-flow |
| CN109764586B (en) * | 2018-12-04 | 2020-04-28 | 珠海格力电器股份有限公司 | Unit starting control method and device adaptive to variable flow |
| CN110068107B (en) * | 2019-04-08 | 2021-04-13 | 广东纽恩泰新能源科技发展有限公司 | Modular control method |
| CN110068107A (en) * | 2019-04-08 | 2019-07-30 | 广东纽恩泰新能源科技发展有限公司 | A kind of modularity control method |
| CN110726234A (en) * | 2019-10-14 | 2020-01-24 | 珠海格力电器股份有限公司 | Load control method and device for improving load stability of unit and unit |
| CN110986254A (en) * | 2019-11-25 | 2020-04-10 | 珠海格力电器股份有限公司 | Water multi-connected air conditioner control method, computer readable storage medium and air conditioner |
| CN110953778B (en) * | 2019-12-17 | 2021-06-29 | 重庆美的通用制冷设备有限公司 | Control method and system of refrigeration equipment, refrigeration equipment and readable storage medium |
| CN110953778A (en) * | 2019-12-17 | 2020-04-03 | 重庆美的通用制冷设备有限公司 | Control method and system of refrigeration equipment, refrigeration equipment and readable storage medium |
| CN114521225A (en) * | 2020-08-27 | 2022-05-20 | 三菱电机株式会社 | Air conditioner |
| CN114521225B (en) * | 2020-08-27 | 2024-04-09 | 三菱电机株式会社 | air conditioner |
| WO2023005451A1 (en) * | 2021-07-30 | 2023-02-02 | 青岛海尔空调电子有限公司 | Control method for water chilling unit |
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