CN203704259U - Frequency converting control device of central air conditioner - Google Patents
Frequency converting control device of central air conditioner Download PDFInfo
- Publication number
- CN203704259U CN203704259U CN201320803941.XU CN201320803941U CN203704259U CN 203704259 U CN203704259 U CN 203704259U CN 201320803941 U CN201320803941 U CN 201320803941U CN 203704259 U CN203704259 U CN 203704259U
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- water pump
- fuzzy controller
- pump motor
- intelligent fuzzy
- control device
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Abstract
The utility model relates to a frequency converting control device of a central air conditioner. The frequency converting control device comprises a chilled water pump motor and a cooling water pump motor, and further comprises a control cabinet, wherein the input end of an intelligent fuzzy controller which is installed in the control cabinet is respectively connected with two temperature sensors mounted at a chilled water inlet and a chilled water outlet, and another two temperature sensors mounted at a cooling water inlet and a cooling water outlet; the output end of the intelligent fuzzy controller is respectively connected with the chilled water pump motor and the cooling water pump motor through two frequency converters; the intelligent fuzzy controller is further connected with an upper computer through a network module; a touch screen is embedded in the door of the control cabinet and connected with the intelligent fuzzy controller; an exhaust fan is mounted at a hole in the top end of the control cabinet; a plurality of air inlet grids are prepared at the lower end of the control cabinet. The frequency converting control device provided by the utility model is simple in structure, scientific and reasonable in design, can effectively improve frequency of the motor, improve the operation conditions, prolongs the service life, and effectively achieving the purpose of saving energy.
Description
Technical field
The utility model belongs to central air-conditioning control technology field, relates to a kind of central air-conditioning frequency-converting control device.
Background technology
Under the overall background of China's rapid economic development, the consumption of the energy (water, electricity, oil) shared proportion in enterprise is more and more higher, is also subject to more and more large attention.Due to the fast-developing demand of real estate, the market demand of central air-conditioning presents staggering growth trend simultaneously.Under the attraction constantly increasing in market capacity, increasing producer joins the field of Centralized Air-conditioning in Public Buildings.
Central air-conditioning is the power consumption rich and influential family in building, and in the annual electricity charge, middle air-conditioning power consumption accounts for 60% left and right, and therefore the reducing energy consumption of central air-conditioning seems particularly important.During due to design, central air conditioning plant must design when maximum by weather the hottest (cold), load, and stay 10-20% design margin, but central air-conditioning is can not operate under full load condition in fact most time, surplus capacity is larger, so energy-conservation potentiality are just larger, wherein, freezing main frame can load or off-load according to load variations thereupon, and chilled water pump and cooling water pump but can not be made corresponding adjusting with load variations, therefore has very large waste.
In addition, the control device complex structure of existing central air-conditioning, and also handling and heat sinking function is poor; Have, control device only limits to local information transmission, cannot carry out far-end or controlled in wireless, thereby inconvenient operating personnel investigates to central air-conditioning remote failure again.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, and can realize according to the actual load of central air-conditioning water circle device the central air-conditioning frequency-converting control device of energy-saving speed regulating control to chilled water pump and cooling water pump motor.
Technical solutions of the utility model are achieved in that
A kind of central air-conditioning frequency-converting control device, comprise refrigerating water pump motor and cooling water pump motor, also comprise a switch board, in this switch board, the input of the intelligent fuzzy controller that fills connects respectively two temperature sensors of two temperature sensors, cooling water inlet and the outlet installation of chilled water import and outlet installation, the output of this intelligent fuzzy controller connects respectively described refrigerating water pump motor and cooling water pump motor by two frequency converters, and this intelligent fuzzy controller also connects a host computer by a mixed-media network modules mixed-media;
Described switch board cabinet door setting-in one touch-screen, this touch-screen connects described intelligent fuzzy controller, and on the top of switch board, tapping is installed a ventilating fan, makes multiple air intake grids in switch board lower end.
And described mixed-media network modules mixed-media connects described host computer with wireless mode or wired mode.
And described chilled water outlet pipe end is provided with pressure sensor.
And, on the output shaft of refrigerating water pump motor and cooling water pump motor, speed probe is all installed, the output of this two speed probe connects the input of intelligent fuzzy controller.
Advantage of the present utility model and good effect are:
1, this device is delivered to intelligent fuzzy controller by temperature sensor by water temperature freezing and that cooling device is imported and exported and the detection signal of temperature approach, do corresponding direct proportion integral operation by intelligent fuzzy controller according to different situations, draw the frequency of water pump actual motion, and send corresponding control signal and change into corresponding frequency current through frequency converter and flow to the motor of water pump, thereby realize the object of electrical machine energy-saving speed regulating control.
2, the intelligent fuzzy controller of this device passes through interconnection network module, thereby has effectively realized the object of remote controlled central air conditioner system, and remote failure investigation and data monitoring writing function.
3, in this device, the output shaft of cooling water pump motor and refrigerating water pump motor is connected with respectively speed probe, thereby can be by the speed feedback of motor to host computer, while breaking down for operating personnel's Check System.
4, this device detects the pressure of chilled water pipeline end by pressure sensor, and the system that guaranteed is normally moved.
5, the utility model is simple in structure, design science is reasonable, can effectively improve the efficiency of motor, improves its service condition, extends its service life, and possesses the object that air-conditioning system is effectively realized to the saving energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is circuit connection diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of central air-conditioning frequency-converting control device, as Fig. 1, shown in Fig. 2, comprise refrigerating water pump motor and cooling water pump motor, also comprise a switch board 4, in this switch board, the input of the intelligent fuzzy controller that fills 10 connects respectively two temperature sensors 8 of chilled water import and outlet installation, two temperature sensors that cooling water inlet and outlet are installed, the output of this intelligent fuzzy controller connects respectively described refrigerating water pump motor 1 and cooling water pump motor 7 by two frequency converters 12, this intelligent fuzzy controller also connects a host computer 5 by a mixed-media network modules mixed-media 11, described mixed-media network modules mixed-media connects described host computer with wireless mode or wired mode, thereby effectively realize the object of remote controlled motor.
Described switch board cabinet door setting-in one touch-screen 3, this touch-screen connects described intelligent fuzzy controller, thereby handled easily personnel operation; At the top of switch board tapping, one ventilating fan 2 is installed, is made multiple air intake grids 6 in switch board lower end, be convenient to the heat radiation of switch board, improve its service life.
Described chilled water outlet pipe end is provided with pressure sensor 9, and output signal is sent to intelligent fuzzy controller by this pressure sensor, detects chilled water pipeline terminal pressure by pressure sensor, and the system that guaranteed is normally moved.
On the output shaft of refrigerating water pump motor and cooling water pump motor, speed probe 13 is all installed, the output of this two speed probe connects the input of intelligent fuzzy controller, thereby the rotating speed of motor can be transferred to host computer by intelligent fuzzy controller, while breaking down for operating personnel's Check System.
Operation principle of the present utility model is:
Freezing, the water temperature of cooling water outlet and inlet and the detection signal of temperature approach are sent back to intelligent fuzzy controller by described temperature sensor, this intelligent fuzzy controller is made corresponding direct proportion integral operation according to different situations, draw the frequency that water pump should move, and corresponding signal is transported to frequency converter, frequency converter changes into corresponding frequency current by signal and flows to pump motor, thereby realizes the object of electrical machine energy-saving speed regulating control.Pressure sensor sends intelligent fuzzy controller to after the pressure signal of chilled water outlet pipeline end is filtered after testing, and in the time of the insufficient pressure of end pipeline, system will guarantee that its end pipeline has enough water yields to pass through, and reaches the balanced object of controlling.In the time that load increases, freezing, the cooling water outlet and inlet water temperature temperature difference increases, and increases the frequency of motor operation, and water pump accelerates, and discharge is increased; In the time that load reduces, the water temperature temperature difference reduces, and reduces the frequency of motor operation simultaneously, and water pump will slow down, and flow is reduced.Intelligent fuzzy controller sends to host computer by signal by network control module, thereby can realize the remote transmission of signal, is convenient to control.
The intelligent fuzzy controller of this device passes through interconnection network module, thereby has effectively realized the object of remote controlled motor, and remote failure investigation.The output shaft of this device cooling water pump motor and refrigerating water pump motor is connected with respectively speed probe, thereby can be by the speed feedback of motor to host computer.The utility model is simple in structure, design science is reasonable, can effectively improve the frequency of motor, improves its service condition, extends its service life, and effectively realizes the object of saving the energy.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a central air-conditioning frequency-converting control device, comprise refrigerating water pump motor and cooling water pump motor, it is characterized in that: also comprise a switch board, in this switch board, the input of the intelligent fuzzy controller that fills connects respectively two temperature sensors of two temperature sensors, cooling water inlet and the outlet installation of chilled water import and outlet installation, the output of this intelligent fuzzy controller connects respectively described refrigerating water pump motor and cooling water pump motor by two frequency converters, and this intelligent fuzzy controller also connects a host computer by a mixed-media network modules mixed-media;
Described switch board cabinet door setting-in one touch-screen, this touch-screen connects described intelligent fuzzy controller, and on the top of switch board, tapping is installed a ventilating fan, makes multiple air intake grids in switch board lower end.
2. central air-conditioning frequency-converting control device according to claim 1, is characterized in that: described mixed-media network modules mixed-media connects described host computer with wireless mode or wired mode.
3. central air-conditioning frequency-converting control device according to claim 1, is characterized in that: described chilled water outlet pipe end is provided with pressure sensor, and output signal is sent to intelligent fuzzy controller by this pressure sensor.
4. central air-conditioning frequency-converting control device according to claim 1 and 2, it is characterized in that: on the output shaft of refrigerating water pump motor and cooling water pump motor, speed probe is all installed, the output of this two speed probe connects the input of intelligent fuzzy controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803941.XU CN203704259U (en) | 2013-12-05 | 2013-12-05 | Frequency converting control device of central air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803941.XU CN203704259U (en) | 2013-12-05 | 2013-12-05 | Frequency converting control device of central air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203704259U true CN203704259U (en) | 2014-07-09 |
Family
ID=51054688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320803941.XU Expired - Fee Related CN203704259U (en) | 2013-12-05 | 2013-12-05 | Frequency converting control device of central air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203704259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137877A (en) * | 2015-08-31 | 2015-12-09 | 广西小草信息产业有限责任公司 | Computer-controlled frequency conversion speed regulation system |
-
2013
- 2013-12-05 CN CN201320803941.XU patent/CN203704259U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137877A (en) * | 2015-08-31 | 2015-12-09 | 广西小草信息产业有限责任公司 | Computer-controlled frequency conversion speed regulation system |
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Legal Events
| 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: 20140709 Termination date: 20171205 |