CN204853844U - Industry power intelligence temperature control system and air conditioning equipment - Google Patents
Industry power intelligence temperature control system and air conditioning equipment Download PDFInfo
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- CN204853844U CN204853844U CN201520499006.8U CN201520499006U CN204853844U CN 204853844 U CN204853844 U CN 204853844U CN 201520499006 U CN201520499006 U CN 201520499006U CN 204853844 U CN204853844 U CN 204853844U
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- cooling tower
- controller
- control system
- temperature control
- frequency converter
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Abstract
The utility model relates to an industry power intelligence temperature control system and air conditioning equipment, this system include cooling tower, circulating water pump, controller and set up converter on the cooling tower, wherein, the converter with the output of circulating water pump and controller is connected respectively, the input of controller is connected to environment temperature and humidity sensor and goes out water temperature sensor, cooling tower, circulating water pump and heat exchanger be end -to -end connection in proper order, forms water circulating system, go out water temperature sensor set up in in the outlet pipe way of cooling tower. The utility model discloses in, utilize environment temperature and humidity sensor to carry out real -time detection to the environment humiture to set for the leaving water temperature setting value according to the testing result, with this setting value with go out water temperature sensor determine to the actual leaving water temperature of cooling tower compare, recycle the rotational speed that circulating water pump was adjusted to the converter, thereby adjust the leaving water temperature of cooling tower, ensure heat exchanger the desired temperature prerequisite under furthest energy -conserving.
Description
Technical field
The utility model relates to field of industrial power, particularly relates to a kind of industrial power intelligent temperature control system and air-conditioning equipment.
Background technology
Each place capacity in air-conditioning system is selected according to the maximum temperature that may occur in air-conditioned room, humidity load by project planner.In the actual motion of air-conditioning, the impact being subject to weather due to cooling tower causes the water temperature passing in and out cooling tower constantly to change.If the cooling tower leaving water temperature of air-conditioning system does not carry out dynamic adjustments according to weather condition, then cooling tower leaving water temperature can be made to occur cold or overheated situation, on-the-spot heat transmission equipment is difficult to ensure normal operation.In addition, the air-conditioning system moment operates in peak load state, can need to consume a large amount of electric energy and heat energy, the normal air-conditioning system run, its power consumption mainly contains two aspects: be cold (heat) source power consumption in order to air supply treatment facility cold and heat on the one hand; That blower fan and water circulating pump overcome the electric energy needed for flow resistance in order to carry air and water on the other hand.For independent looped cycle cooling system, cooling tower is one of main energy consumption equipment, is reduce cooling tower energy consumption, usually uses frequency converter (VFD, English full name: Variable-frequencyDrive) to regulate the rotating speed of cooling tower at present.But how in weather transient change situation, while effectively maintaining the temperature of heat transmission equipment normal need, again can be energy-conservation to greatest extent, be those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
The utility model provides industrial power intelligent temperature control system and air-conditioning equipment, while guaranteeing that heat transmission equipment normally runs, realizes energy-saving effect to greatest extent.
For solving the problems of the technologies described above, the utility model provides industrial power intelligent temperature control system, the frequency converter comprising cooling tower, water circulating pump, controller and be arranged on described cooling tower, wherein,
Described frequency converter is connected respectively with the output of described water circulating pump and controller, and the input of described controller is connected to environment humidity sensor and leaving water temperature sensors;
Described cooling tower, water circulating pump and heat exchanger successively head and the tail connect, and form water circulation system;
Described leaving water temperature sensors is arranged in the outlet pipeline of described cooling tower.
Preferably, the quantity of described cooling tower is two or more, and the corresponding frequency converter of each cooling tower, each frequency converter is connected respectively with described controller, and each frequency converter controls different water circulating pumps respectively.
Preferably, described controller is also connected with the switch of each described cooling tower respectively.
Preferably, described controller is by the rotating speed of described each water circulating pump of Frequency Converter Control.
Preferably, the input of described controller is also connected to inflow temperature sensor, and described inflow temperature sensor setting is in the inlet pipeline of described cooling tower.
Preferably, described controller adopts wet bulb temperature calcuation controller.
Preferably, described controller adopts and automatically becomes leaving water temperature controller.
The utility model additionally provides a kind of air-conditioning equipment, adopts industrial power intelligent temperature control system as above.
Compared with prior art, the industrial power intelligent temperature control system that the utility model provides and air-conditioning equipment, the frequency converter that this system comprises cooling tower, water circulating pump, controller and is arranged on described cooling tower, wherein, described frequency converter is connected respectively with the output of described water circulating pump and controller, and the input of described controller is connected to environment humidity sensor and leaving water temperature sensors; Described cooling tower, water circulating pump and heat exchanger successively head and the tail connect, and form water circulation system; Described leaving water temperature sensors is arranged in the outlet pipeline of described cooling tower.In the utility model; environment humidity sensor is utilized to detect in real time ambient temperature and humidity; and according to testing result setting water outlet temperature setting value; the actual leaving water temperature of the cooling tower this setting value and leaving water temperature sensors detected is compared; recycling frequency converter regulates the rotating speed of water circulating pump; thus regulate the leaving water temperature of cooling tower, energy-conservation to greatest extent under guaranteeing the temperature required prerequisite of heat exchanger.
Accompanying drawing explanation
Fig. 1 is the structural representation of the industrial power intelligent temperature control system of the utility model one specific embodiment mode.
In figure: 10-cooling tower, 20-frequency converter, 30-water circulating pump, 40-controller, 41-leaving water temperature sensors, 42-inflow temperature sensor, 50-environment humidity sensor, 60-heat exchanger.
Detailed description of the invention
In order to the technical scheme of the above-mentioned utility model of more detailed statement, below list specific embodiment and carry out Proof Technology effect; It is emphasized that these embodiments are not limited to for illustration of the utility model limit scope of the present utility model.
The industrial power intelligent temperature control system that the utility model provides, please refer to Fig. 1, the frequency converter 20 comprising cooling tower 10, water circulating pump 30, controller 40 and be arranged on described cooling tower 10, wherein,
Described frequency converter 20 is connected respectively with the output of described water circulating pump 30 and controller 40, and the input of described controller 40 is connected to environment humidity sensor 50 and leaving water temperature sensors 41;
Described cooling tower 10, water circulating pump 30 and heat exchanger 60 successively head and the tail connect, and form water circulation system;
Described leaving water temperature sensors 41 is arranged in the outlet pipeline of described cooling tower 10.
In the utility model; environment humidity sensor 50 pairs of ambient temperature and humidities are utilized to detect in real time; and according to testing result setting water outlet temperature setting value; the actual leaving water temperature of the cooling tower 10 this setting value and leaving water temperature sensors 41 detected is compared; recycling frequency converter 20 regulates the rotating speed of water circulating pump 30; thus regulate the leaving water temperature of cooling tower 10, energy-conservation to greatest extent under guaranteeing the temperature required prerequisite of heat exchanger 60.
Preferably, please continue to refer to Fig. 1, the quantity of described cooling tower 10 is two or more, the corresponding frequency converter 20 of each cooling tower 10, each frequency converter 20 is connected respectively with described controller 40, each frequency converter 20 controls different water circulating pumps 30 respectively, in the present embodiment, the quantity of described cooling tower 10, frequency converter 20, water circulating pump 30 and heat exchanger 60 is 3, and frequency converter 20 and water circulating pump 30 one_to_one corresponding, described controller 40 controls the rotating speed of each water circulating pump 30 by described frequency converter 20, thus the leaving water temperature of controlled cooling model tower 10.
Preferably, described controller 40 is also connected with the switch of each described cooling tower 10 respectively, when the change of cooling tower 10 leaving water temperature cannot reach demand by frequency converter 20 adjustment, so needs the operation number of units regulating cooling tower 10.
Preferably, please continue to refer to Fig. 1, the input of described controller 40 is also connected to inflow temperature sensor 42, described inflow temperature sensor 42 is arranged in the inlet pipeline of described cooling tower 10, the inflow temperature of described inflow temperature sensor 42 pairs of cooling towers 10 detects, there is provided reference for controller 40 sets water outlet temperature setting value, improve thermoregulator accuracy further.
Preferably, described controller 40 adopts wet bulb temperature calcuation controller, namely utilizes wet-bulb temperature to demarcate air relative humiture.
Preferably, described controller 40 adopts and automatically becomes leaving water temperature controller, and that is, controller according to the change of input signal, can control output signal, without the need to artificial adjustment automatically.
Particularly, it is as follows that the industrial power intelligent temperature control system that the utility model provides carries out thermoregulator process:
S1: environment humidity sensor 50 Real-time Collection outdoor temperature, humidity h, calculate wet-bulb temperature t according to the outdoor temperature humidity collected
w, computational methods are as follows:
t
w＝t-K
h·R
w·(d
as-d)/(1000·α)
d
as＝6.22·h·P
ws/(P-h·P
ws/100)
In formula: t
wfor wet-bulb temperature, unit DEG C; T is dry-bulb temperature, unit DEG C; d
asfor t
wwater capacity during temperature, unit g/Kg dry air; Water capacity when d is t temperature, unit g/Kg dry air; R
wfor t
wthe heat of vaporization of water during temperature, unit K J/Kg; K
hfor gas phase mass transfer coefficient; α is that gas phase is to staying heat transfer coefficient; P is atmospheric pressure, unit Pa; P
wsfor saturated steam partial pressure, unit Pa.
S2: the wet-bulb temperature t that controller 40 obtains according to computing
wcalculate the water outlet temperature setting value t of cooling tower 10
set, computational methods are as follows:
T
set=Max (t
w+ 5, t
min), i.e. water outlet temperature setting value t
setfor t
w+ 5 and t
minin higher value.
In formula: t
minfor the minimum temperature that heat exchanger 60 allows, unit DEG C.
S3: controller 40 is according to the water outlet temperature setting value t running the cooling tower 10 obtained
set, with the actual leaving water temperature t of cooling tower 10
sucompare, and regulate the rotating speed of frequency converter 20 in each cooling tower 10 according to the result compared, concrete steps are as follows:
If t
su>t
set, illustrate that the leaving water temperature of cooling tower 10 is high, need to reduce leaving water temperature, this Time Controller 40 regulates frequency converter 20, increases the rotating speed of frequency converter 20, to meet burden requirement;
If t
su<t
set, illustrate that the leaving water temperature of cooling tower 10 is low, need rising water outlet temperature, this Time Controller 40 regulates frequency converter 20, reduces the rotating speed of frequency converter 20, can meet burden requirement, reach energy-saving effect again.
S4: when the change of cooling tower 10 leaving water temperature cannot reach demand by frequency converter 20 adjustment, so need the operation number of units regulating cooling tower 10, its control mode is as follows:
If cooling tower 10 running frequency is when low-limit frequency, and t
su<t
set, so controller 40 carries out time delay calculating, closes 1 cooling tower 10 after 5 minutes and runs.
N
t=N
t-1, wherein, N
tfor the operation number of units of cooling tower 10;
If cooling tower 10 running frequency is when highest frequency, and t
su>t
set, so controller 40 carries out time delay calculating, increases by 1 cooling tower 10 after 5 minutes and runs.
N
t=N
t+ 1, wherein, N
tfor cooling tower 10 runs number of units.
The utility model additionally provides a kind of air-conditioning equipment, adopts industrial power intelligent temperature control system as above.Adopt this air-conditioning equipment, the water outlet temperature setting value of cooling tower 10 is controlled to adjust by controller 40, by the operation number of units of water outlet temperature setting value controlled cooling model tower 10 and the rotating speed of water circulating pump 30, thus regulate the leaving water temperature of cooling tower 10, can under the prerequisite ensureing room comfortableness, energy-conservation to greatest extent.
In sum, the industrial power intelligent temperature control system that the utility model provides and air-conditioning equipment, the frequency converter 20 that this system comprises cooling tower 10, water circulating pump 30, controller 40 and is arranged on described cooling tower 10, wherein, described frequency converter 20 is connected respectively with the output of described water circulating pump 30 and controller 40, and the input of described controller 40 is connected to environment humidity sensor 50 and leaving water temperature sensors 41; Described cooling tower 10, water circulating pump 30 and heat exchanger 60 successively head and the tail connect, and form water circulation system; Described leaving water temperature sensors 41 is arranged in the outlet pipeline of described cooling tower 10.In the utility model; environment humidity sensor 50 pairs of ambient temperature and humidities are utilized to detect in real time; and according to testing result setting water outlet temperature setting value; the actual leaving water temperature of the cooling tower 10 this setting value and leaving water temperature sensors 41 detected is compared; recycling frequency converter 20 regulates the rotating speed of water circulating pump 30; thus regulate the leaving water temperature of cooling tower 10, energy-conservation to greatest extent under guaranteeing the temperature required prerequisite of heat exchanger 60.
Obviously, those skilled in the art can carry out various change and modification to utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (8)
1. an industrial power intelligent temperature control system, is characterized in that, the frequency converter comprising cooling tower, water circulating pump, controller and be arranged on described cooling tower, wherein,
Described frequency converter is connected respectively with the output of described water circulating pump and controller, and the input of described controller is connected to environment humidity sensor and leaving water temperature sensors;
Described cooling tower, water circulating pump and heat exchanger successively head and the tail connect, and form water circulation system;
Described leaving water temperature sensors is arranged in the outlet pipeline of described cooling tower.
2. industrial power intelligent temperature control system as claimed in claim 1, it is characterized in that, the quantity of described cooling tower is two or more, the corresponding frequency converter of each cooling tower, each frequency converter is connected respectively with described controller, and each frequency converter controls different water circulating pumps respectively.
3. industrial power intelligent temperature control system as claimed in claim 2, it is characterized in that, described controller is also connected with the switch of each described cooling tower respectively.
4. industrial power intelligent temperature control system as claimed in claim 2, it is characterized in that, described controller is by the rotating speed of described each water circulating pump of Frequency Converter Control.
5. industrial power intelligent temperature control system as claimed in claim 1, it is characterized in that, the input of described controller is also connected to inflow temperature sensor, and described inflow temperature sensor setting is in the inlet pipeline of described cooling tower.
6. industrial power intelligent temperature control system as claimed in claim 1, is characterized in that, described controller adopts wet bulb temperature calcuation controller.
7. industrial power intelligent temperature control system as claimed in claim 1, is characterized in that, described controller adopts and automatically becomes leaving water temperature controller.
8. an air-conditioning equipment, is characterized in that, adopts as the industrial power intelligent temperature control system in claim 1 ~ 7 as described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499006.8U CN204853844U (en) | 2015-07-10 | 2015-07-10 | Industry power intelligence temperature control system and air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499006.8U CN204853844U (en) | 2015-07-10 | 2015-07-10 | Industry power intelligence temperature control system and air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204853844U true CN204853844U (en) | 2015-12-09 |
Family
ID=54744386
Family Applications (1)
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|---|---|---|---|
| CN201520499006.8U Active CN204853844U (en) | 2015-07-10 | 2015-07-10 | Industry power intelligence temperature control system and air conditioning equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996713A (en) * | 2017-04-21 | 2017-08-01 | 南京理工大学 | A kind of constant temperature cooperative control method of many water cooling towers of multi fan |
| CN107388882A (en) * | 2017-08-02 | 2017-11-24 | 南京理工大学 | The multi fan of cooling tower sprays collaboration fuzzy control method more |
-
2015
- 2015-07-10 CN CN201520499006.8U patent/CN204853844U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996713A (en) * | 2017-04-21 | 2017-08-01 | 南京理工大学 | A kind of constant temperature cooperative control method of many water cooling towers of multi fan |
| CN107388882A (en) * | 2017-08-02 | 2017-11-24 | 南京理工大学 | The multi fan of cooling tower sprays collaboration fuzzy control method more |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: Science and Technology City kolding road high tech Zone of Suzhou City, Jiangsu province 215163 No. 78 Building No. 3 room 306 Patentee after: Tomorrow work (Suzhou) control system Co., Ltd. Address before: Science and Technology City high tech Zone of Suzhou City, Jiangsu province 215163 eswell Road No. 2 Building 2 layer micro system Park M2 Patentee before: BAISHITELING (SUZHOU) INTELLIGENT TECHNOLOGY CO., LTD. |