CN204285723U - A kind of central air-conditioning multizone cooling cold balancing control appliance - Google Patents
A kind of central air-conditioning multizone cooling cold balancing control appliance Download PDFInfo
- Publication number
- CN204285723U CN204285723U CN201420543608.4U CN201420543608U CN204285723U CN 204285723 U CN204285723 U CN 204285723U CN 201420543608 U CN201420543608 U CN 201420543608U CN 204285723 U CN204285723 U CN 204285723U
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- conditioning
- central air
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- external sensor
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Abstract
The utility model belongs to central air-conditioning cooling cold control appliance, in particular to a kind of central air-conditioning multizone cooling cold balancing control appliance, comprise external sensor, regional balance switch board, regional balance control valve and intelligent control unit, external sensor comprises pressure sensor, temperature sensor, humidity sensor and flow sensor, described external sensor is arranged on the region loop of central air-conditioning, external sensor output is connected to regional balance switch board, described regional balance switch board is connected with regional balance control valve by pipe fitting, this regional balance control valve is arranged on the water return pipeline of central air-conditioning region loop.The utility model be meet each region refrigeration requirement balance be control objectives, by monitoring the corresponding regional balance control valve of actual refrigeration requirement dynamic conditioning in each region, make each region obtain required cold, reach a kind of dynamic energy balance, reach energy-saving effect.
Description
Technical field
The utility model belongs to central air-conditioning cooling cold control appliance, particularly a kind of central air-conditioning multizone cooling cold balancing control appliance.
Background technology
At present, along with expanding economy, central air-conditioning is more and more extensive in the application of industry-by-industry, but the energy consumption of central air-conditioning has occupied a big chunk in the overall energy consumption of enterprise, the operation cost of enterprises ' industry is remained high, and the energy-conservation of central air-conditioning has great significance.
Secondly central air conditioner system is when designing institute designs, and always according to the design of maximum cold load, guarantees that the most severe part in using air-condition region will reach comfort requirement.
In addition the operational mode of conventional central air-conditioning system, cold water water pump is directly supplied to regional.Like this for multizone loop, the phenomenon of regional cold inequality can be caused, the cold wasting phenomenon caused.
Utility model content
The technical problems to be solved in the utility model is, overcomes deficiency of the prior art, provides a kind of central air-conditioning multizone cooling cold balancing control appliance.
For technical solution problem, solution of the present utility model is:
A kind of central air-conditioning multizone cooling cold balancing control appliance is provided, comprise external sensor, regional balance switch board, regional balance control valve and intelligent control unit, external sensor comprises pressure sensor, temperature sensor, humidity sensor and flow sensor, described external sensor is arranged on the region loop of central air-conditioning, for gathering refrigeration requirement information, external sensor output is connected to regional balance switch board, described regional balance switch board is connected with regional balance control valve by pipe fitting, this regional balance control valve is arranged on the water return pipeline of central air-conditioning region loop, refrigeration requirement for control band loop supplies, regional balance switch board is located at, the refrigeration requirement information gathered for the treatment of external sensor and control area balance regulating valve in described intelligent control unit.
Improve as one, described external sensor gathers refrigeration requirement information and comprises the loop area line temperature of central air-conditioning, humidity, pressure, flow and outdoor temperature, humidity.
Compared with prior art, the beneficial effects of the utility model are:
The utility model be meet each region refrigeration requirement balance be control objectives, by monitoring the corresponding regional balance control valve of actual refrigeration requirement dynamic conditioning in each region, make each region obtain required cold, reach a kind of dynamic energy balance, reach energy-saving effect; Reduce central air-conditioning energy dissipation, economize energy, to increase economic efficiency.
Accompanying drawing explanation
Fig. 1 is composition structure chart of the present utility model;
Fig. 2 is the control structure schematic diagram of the utility model intermediate ring road temperature and pressure thereof;
Reference numeral: 1, external sensor, 2, regional balance switch board, 3, intelligent control unit, 4, regional balance control valve, 5, central air-conditioning.
Detailed description of the invention
Following embodiment can make the technical staff of this professional skill field more fully understand the utility model, but limits the utility model never in any form.
The utility model is a kind of central air-conditioning multizone cooling cold balancing control appliance, as shown in Figure 1, comprising comprising external sensor 1, regional balance switch board 2 and regional balance control valve 4, external sensor 1 comprises pressure sensor, temperature sensor, humidity sensor and flow sensor.
Described external sensor 1 is arranged on the region loop of central air-conditioning 5, and for gathering refrigeration requirement information, wherein this refrigeration requirement information comprises the temperature of the region loop of central air-conditioning 5, humidity, pressure, flow and outdoor temperature, humidity.External sensor 1 output is connected to regional balance switch board 2, described regional balance switch board 2 is connected with regional balance control valve 4 by pipe fitting, this regional balance control valve 4 is arranged on the water return pipeline of region loop of central air-conditioning 5, and the refrigeration requirement for control band loop supplies; Intelligent control unit 3 is provided with in described regional balance switch board 2, the refrigeration requirement information gathered for the treatment of external sensor 1 and control area balance regulating valve 4, make regional obtain required cold, reach a kind of dynamic energy balance, reach energy-saving effect.
Two functions (i.e. function 1 and function 2) are reached, to realize energy-conservation object by the control of these equipment.
Above-mentioned function 1 is the dynamic hydraulic equilibrium making whole air conditioning water system load side and low-temperature receiver side.What cold source air conditioning system chilled water adopted is variable flow system, and control system adopts load side vari-able flow control, low-temperature receiver side vari-able flow control.From the hydraulic regime of the whole chilled water system overall situation, control system adopts Bidirectional variable-flow amount technology, by electric control valve chilled-water flow needed for the loop of dynamic adjustments each region of water knockout drum each region loop outlet, simultaneously by carrying out dynamic hydraulic equilibrium control to the vari-able flow control of chilled water pump to whole air-conditioning system, thus realize the dynamic hydraulic equilibrium of low-temperature receiver side to the whole water system of load side.
Above-mentioned function 2 realizes cold and the waterpower double balance that each region of cold and heat source system water knockout drum goes out water loops, the temperature that the temperature sensor of each backwater branch road of water collector of control system monitoring air-conditioning system and the temperature sensor of water knockout drum water inlet main measure, chilled-water flow needed for the electric control valve dynamic adjustments regional loop that surveyed each region loop backwater mean temperature utilizes the fuzzy control technology of system to be exported by water knockout drum each region loop, make the return water temperature of regional loop reach unanimity as far as possible, realize the cold balancing of each region loop.
The pressure sensor of the pressure sensor arranged by detected set hydrophone each backwater region loop and water knockout drum water inlet main utilizes the lower limit pressure reduction of each region loop to ensure the result of use of each region loop air-conditioning, each region loop is made to reach the double balance of cold and waterpower, realize the dynamic hydraulic equilibrium optimal control of chilled water system based on energy distribution equilibrium, when after end adjustment, the vari-able flow control of refrigerating water pump can be realized according to the pressure reduction at water knockout drum two ends.
As shown in Figure 2, the present embodiment provides the operation principle of a kind of central air-conditioning multizone cooling cold balancing control appliance intermediate ring road temperature and pressure thereof, detect each loop return water temperature, pressure of return water and main by external sensor 1 and go out pressure of return water, wherein the PV value of feedback of each loop return water temperature recorded is fed back in loop 1, loop 2 and loop 3 Temperature Fuzzy Control unit, each loop return water temperature recorded is obtained after average computation process SP set-point simultaneously and feed back in loop 1, loop 2 and loop 3 Temperature Fuzzy Control unit; The PV value of feedback that the pressure of return water recorded and main go out pressure of return water feeds back in chilled water pump frequency conversion control unit, compares calculation process with SP default value simultaneously; The pressure of return water recorded and main go out pressure of return water and after average computation process, obtain PV value of feedback feed back to respectively in loop 1, loop 2 and loop 3 pressure reduction fuzzy control unit, compare calculation process respectively with SP default value simultaneously; Finally loop 1 Temperature Fuzzy Control element output signal and loop 1 pressure reduction fuzzy control element output signal are carried out judging whether default pressure reduction meets, if so, then selection function channel selecting exports, and if not, then selects loop 3# governor valve control; In like manner, loop 2, loop 3 Temperature Fuzzy Control element output signal export judged result with loop 2, loop 3 pressure reduction fuzzy control element output signal after carrying out identical judgement.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make further amendment, these improvement also should be considered as protection domain of the present utility model.
Claims (2)
1. a central air-conditioning multizone cooling cold balancing control appliance, comprise external sensor, it is characterized in that, also comprise regional balance switch board, regional balance control valve and intelligent control unit, external sensor comprises pressure sensor, temperature sensor, humidity sensor and flow sensor, described external sensor is arranged on the region loop of central air-conditioning, for gathering refrigeration requirement information, external sensor output is connected to regional balance switch board, described regional balance switch board is connected with regional balance control valve by pipe fitting, this regional balance control valve is arranged on the water return pipeline of central air-conditioning region loop, refrigeration requirement for control band loop supplies, regional balance switch board is located at, the refrigeration requirement information gathered for the treatment of external sensor and control area balance regulating valve in described intelligent control unit.
2. according to the central air-conditioning multizone cooling cold balancing control appliance described in claim 1, it is characterized in that, the refrigeration requirement information of described external sensor collection comprises the region loop temperature of central air-conditioning, humidity, pressure, flow and outdoor temperature, humidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420543608.4U CN204285723U (en) | 2014-09-21 | 2014-09-21 | A kind of central air-conditioning multizone cooling cold balancing control appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420543608.4U CN204285723U (en) | 2014-09-21 | 2014-09-21 | A kind of central air-conditioning multizone cooling cold balancing control appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204285723U true CN204285723U (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420543608.4U Expired - Fee Related CN204285723U (en) | 2014-09-21 | 2014-09-21 | A kind of central air-conditioning multizone cooling cold balancing control appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204285723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440549A (en) * | 2016-05-30 | 2017-02-22 | 靳凯 | Control system for increasing comprehensive energy efficiency ratio of central air conditioning system |
| CN111594903A (en) * | 2020-05-28 | 2020-08-28 | 南京百源通能源技术有限公司 | Hydraulic balance control system and hydraulic balance control method |
-
2014
- 2014-09-21 CN CN201420543608.4U patent/CN204285723U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440549A (en) * | 2016-05-30 | 2017-02-22 | 靳凯 | Control system for increasing comprehensive energy efficiency ratio of central air conditioning system |
| CN111594903A (en) * | 2020-05-28 | 2020-08-28 | 南京百源通能源技术有限公司 | Hydraulic balance control system and hydraulic balance control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20170921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |