CN2924379Y - Central air conditioning cooling-energy distributing meter - Google Patents
Central air conditioning cooling-energy distributing meter Download PDFInfo
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- CN2924379Y CN2924379Y CN 200520129555 CN200520129555U CN2924379Y CN 2924379 Y CN2924379 Y CN 2924379Y CN 200520129555 CN200520129555 CN 200520129555 CN 200520129555 U CN200520129555 U CN 200520129555U CN 2924379 Y CN2924379 Y CN 2924379Y
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Abstract
The utility model relates to a central air conditioning refrigerating capacity distribution meter that gathers refrigerating capacity distribution computation and constant temperature control into one entity. The control module and the output module are connected by the own communication circuit to conduct communications, while the driving executive circuit respectively realizes control toward a wind speed control electric valve and a cooling or heating control electric valve in the central air conditioning. The control status of each electric valve realized by the driving executive circuit is regarded as the basis of computation, which is successively sent to the microprocessor of the control module through two communication circuits to realize the control of the wind speed of a coil pipe of the draught fan and the inspection of cooling status, thus calculating the cooling coefficient. At three different wind speeds of the coil pipe, the corresponding starting time of the cool water valve is attainted by the driving executive circuit so as to calculate the refrigerating capacity coefficient of the coil pipe, to realize a reasonable charge calculation, to promote the central air conditioning users to form an energy-saving habit and to increase the using ratio of energy.
Description
Technical field
The utility model relate to a kind of collect the cold distribution and computation and and thermostatic control be the central air-conditioning cold distribution and computation table of one.
Technical background
At present, building energy consumption has become the main reason that energy resource consumption increases.The energy consumption of central air-conditioning accounts for the 50-60% of whole building energy consumption.Wherein, the air-conditioning equipment energy consumption is greatly an aspect, and it is another main cause that irrational charge method causes the artificial waste in the use.
At present, Chang Yong air conditioning charging way has two big classes.
First kind, adopt the freezing water yield and the supply backwater temperature difference flow through metering central air-conditioning end, though and to carry out the cooling metering mode of integrating more accurate.But it is higher also to exist equipment manufacturing cost, and the difficulty of the old building transforming project implementation is bigger, and construction wrong can influence problems such as metering and result of use.
Second kind, the fan coil that calculates the central air-conditioning end divides the way of air-conditioning expense running time.But this way is just measured and is detected the running time and the wind speed of fan coil.Can't implement effectively to detect and calculate for following several situations, may occur that user's reality is not used central air-conditioning and situation that the measuring equipment mistake is calculated takes place.
1. the electronic cold valves of the fan coil of central air-conditioning end is because other reasons can not effectively be closed, and the result reduces integrating cold coefficient.
2. the central air-conditioning refrigeration host computer does not move, but the fan coil operation, and the result increases integrating cold coefficient.
3. the cold valves of the fan coil region of central air-conditioning end is closed, but the fan coil operation, and the result increases integrating cold coefficient.
The utility model content
The utility model has overcome above-mentioned shortcoming, and a kind of simple in structure, rational central air-conditioning cold distribution and computation table of metering is provided.
The technical scheme in the invention for solving the technical problem is: a kind of central air-conditioning cold distribution and computation table, comprise and be used to control with the control module of cold integrating and be used to carry out the control of described control module and the output module of acquisition, comprise continuous microprocessor and telecommunication circuit in the described control module, comprise another microprocessor and telecommunication circuit that links to each other with described another microprocessor respectively and driving executive circuit in the described output module, telecommunication circuit by separately between described control module and the output module is connected and communicates, described driving executive circuit is controlled motor-driven valve and refrigeration to the wind speed in the described central air-conditioning respectively or is heated the control motor-driven valve and realizes control, described driving executive circuit is to the state of a control of described each motor-driven valve, successively through measuring in the microprocessor that sends to described control module by described two telecommunication circuits.
Telecommunication circuit in the described control module can comprise M-BUS telecommunication circuit and analogue communication circuit, and the telecommunication circuit in the described output module also is the analogue communication circuit, and corresponding continuous with the analogue communication circuit in the described control module.
Analog communication circuit in the described control module is used for realizing communicating by letter with output module, can comprise two optocouplers, a triode, a light emitting diode and peripheral a plurality of resistance thereof, 2 pin of wherein said first optocoupler connect the emitter stage of described triode after through a resistance, the grounded collector of described triode, 19 pin that base stage connects described microprocessor link to each other, 4 pin of described another optocoupler are connected with 1 pin of first optocoupler, 5 pin connect 20 pin of described microprocessor, and simultaneously through pull-up resistor connection+3.3V power supply, anodal connection+3.3V the power supply of described light emitting diode, negative pole links to each other with the emitter stage of described triode behind a resistance.
Analogue communication circuit in the described output module mainly can comprise two optocouplers, a triode and a reverser, 15 pin of microprocessor are through being connected to the base stage of described triode in the described output module behind the described reverser, the grounded emitter of described triode, colelctor electrode connects 2 pin of described first optocoupler after through a resistance, 4 pin of described first optocoupler directly link to each other with 1 pin of second optocoupler, the 2 pin process fuse of second optocoupler links to each other with the analog communication module in the described control module, carries out exchanges data with described control module.
The utility model comprises control module and output module, described control module is arranged on the indoor wall of being convenient to operate, be used for described output module is controlled, and the cold of air-conditioning carried out integrating, described output module is arranged near on the floor or wall of fan coil installation site, be used to carry out the control signal that described control module is sent, comprise continuous microprocessor and telecommunication circuit in the described control module, comprise another microprocessor and telecommunication circuit that links to each other with described another microprocessor respectively and driving executive circuit in the described output module, telecommunication circuit by separately between described control module and the output module is connected and communicates, described driving executive circuit is controlled motor-driven valve and refrigeration to the wind speed in the described central air-conditioning respectively or is heated the control motor-driven valve and realizes control, described driving executive circuit is to the state of a control of described each motor-driven valve, basis as metering, successively through sending in the microprocessor of described control module by described two telecommunication circuits, realization is controlled with refrigerating state the wind speed of fan coil and is detected, thereby calculating coefficient of refrigerating performance, again by driving the opening time that executive circuit obtains cold valves correspondence under three kinds of different wind speed of coil pipe, thereby calculate coil pipe cold coefficient, realize reasonably charging of a kind of realization, impel the central air-conditioning user to form energy-conservation custom, improve rate of energy.Simultaneously unique detection pattern in the utility model and novel structure that central air-conditioning cold billing function and radiator valve are united two into one, greatly reduce cooling metering and temperature controlled cost, reduce the expense of estate management, improved the level of management.
Description of drawings
Fig. 1 is the block diagram of control circuit in the utility model
Fig. 2 is a structural representation of the present utility model
Fig. 3 is the partial circuit schematic diagram of control module in the utility model
Fig. 4 is communications portion circuit theory diagrams in the control module in the utility model
The circuit theory diagrams of output module in Fig. 5 the utility model
The specific embodiment
As shown in Figure 1, utility model mainly comprises control module 101 and output module 102, comprise microprocessor 103 and the power circuit 104 that links to each other with described microprocessor 103 respectively in the described control module 101, display circuit 105, M-BUS telecommunication circuit 106, supervisory keyboard 107, temperature sensor 108 and analogue communication circuit 109, comprise another microprocessor 110 and the power circuit 113 that links to each other with described microprocessor 110 in the described output module 102, temperature sensor 112, analogue communication circuit 111 and drive executive circuit 114, the analogue communication circuit 109 by separately between described control module 101 and the output module 102 is connected with 111 and communicates.
As shown in Figure 2, described control module 201 (being 101 among Fig. 1) is inlaid on the indoor wall of being convenient to operate, the temperature sensor 205 that detects indoor temperature is installed in the inside of control panel, described output module 202 (being 102 among Fig. 1) is installed near the indoor floor of fan coil installation site or near on the wall of floor, temperature sensor 206 in the described output module is arranged in the fan coil, described display circuit is the LCD display circuit, and its LCD display is arranged on the panel of described control module 201.The motor-driven valve 204 that is used to control cold water pipe is arranged on the chilled water pipe of described blower fan 203, and the opening and closing by described output module control motor-driven valve 204.Described control module 201 and output module 202 are connected by lead, and described output module 202 also connects and control the wind speed of described blower fan 203 by lead.
The circuit theory diagrams of described control module are as shown in Fig. 3,4, described microprocessor U1 is a single-chip microcomputer, be used for the The whole control module is carried out overall operation control, comprise demonstration information, parameter is set and controls described output module etc., and have the M-BUS interface of external connected network communication and the software control of communication interface that output module is controlled.
Described power circuit is regulator block U5 and U6 and peripheral circuit formation thereof, by regulator block U5 output+5V voltage stabilizing, by regulator block U6 output+3.3V voltage stabilizing, thereby can export+5V and+two level stable voltage of 3.3V, provide working dc power for containing microprocessor and peripheral circuit thereof, communicating circuit, temperature sensor, LCD display circuit, memory etc.
A power sense circuit, form by resistance R 14, R15, R16, R38, capacitor C 2, diode D3 and operational amplifier U4, wherein operational amplifier U4 is LM393, input is through resistance R 38 connection+3.3V power supplys in the same way, be connected to the reverse input end of described amplifier U4 after resistance R 14, the R15 general+12V dividing potential drop, connect the control end of microcontroller U1 behind the diode D3 of output through oppositely connecting.
By KEY1, KEY2, KEY3, KEY4, KEY5, the keyboard matrix circuit that KEY6 forms, connect one group of control end of microprocessor U1 respectively, be responsible for being provided with relevant parameter, and LCD display circuit demonstration output menu and related data by constituting by driving chip U2 and display screen, wherein lcd driver U2 is HT1621B, X1 is a crystal, meet the pin XIN of microcontroller U1, XOUT, for microprocessor provides clock signal, a memory U3 is the data terminal of 24C02 and described microprocessor U1, be used for storing system information and continuous data, temperature sensor U12 is DS18B20, is used to realize the measurement of indoor temperature, the pin 3 of temperature sensor U12 connects+3.3V, pin 2 connects U1 pin 9, and pin 2 connects+the 3.3V dc source pin 1 ground connection in addition through resistance R 3.The pin 15,16 of described microprocessor U1 is the communication interface serial port, connects described M-BUS telecommunication circuit, and realization is communicated by letter with last level controlling system or zone manager or Ethernet, thereby realizes wider Total tune control.Because described M-BUS telecommunication circuit is routine techniques comparatively, and is not the emphasis that the utility model will illustrate, so in the drawings the schematic diagram of this part circuit is omitted.Described microcontroller U1 pin 19,20 is the analog communication interface, links to each other with described analogue communication circuit, realizes communicating by letter with output module.Reset circuit is made up of diode D4, capacitor C 9, resistance R 11, and the positive pole of described diode D4 and capacitor C 9, resistance R 11 have common ports and connect the resetting pin of microprocessor U1, realize the electrification reset of microprocessor.
Described analog communication circuit is used for realizing communicating by letter with output module, by two optocoupler U10, triode Q2 of U11, LED 3 and peripheral a plurality of resistance thereof are formed, 2 pin of wherein said optocoupler U10 connect the emitter stage of described triode Q2 through resistance R 28 backs, the grounded collector of described triode Q2,19 pin that base stage connects described microprocessor U1 link to each other, 4 pin of described optocoupler U10 now are connected with 1 pin of U11,5 pin connect 20 pin of described microprocessor U1, and simultaneously through pull-up resistor R13 connection+3.3V power supply, described LED 3 anodal connection+3.3V power supplys, negative pole links to each other with the emitter stage of described triode Q2 after resistance R 29.
Described output module comprises microprocessor U7 and peripheral auxiliary circuits thereof, communication interface circuit, drives executive circuit, power circuit and temperature sensor as shown in Figure 5.
Power circuit is transformer T1, rectifier bridge B1, voltage-stablizer U7 and U8 and peripheral circuit thereof, provide working dc power for containing microprocessor and peripheral circuit thereof, communication interface circuit, control circuit and control panel, described transformer T1 is depressured to AC15V with AC220V, be converted to direct current by described rectifier bridge B1, constituting+the 12V mu balanced circuit via capacitor C 7, C11, regulator block U13 and capacitor C 12, C8, forming+the 3.3V mu balanced circuit by C13, C9 and U14.
Microprocessor U7 is a single-chip microcomputer also, is used to control the overall work of whole output module.X2 is a crystal, connect the pin 5,6 of described microprocessor U7, for microprocessor provides clock signal, described microprocessor U7 pin 14,15 is the analog communication interface, link to each other with described analogue communication circuit, realize communicating with control module, the pin 7 of described microprocessor U7 is connected with reset circuit, realize the electrification reset of microprocessor
Described driving executive circuit comprises one group of phase inverter U8A～U8E, Darlington driver U15, relay R ELAY1～RELAY5, resistance R 1～R5 and capacitor C 1～C5, described reverser is 74HCO4, the control output end of the input of every reverser and described microprocessor U7, the output of every reverser all connects the input of an end Darlington driver U15 respectively, the output of described Darlington driver U15 connects the coil of relay R ELAY1～RELAY5 respectively, the normally opened contact of relay R ELAY1～RELAY5 then connects corresponding motor-driven valve, thereby control the switch and the coil pipe blower fan height of described electric two-way valve, in, the switching of low third gear wind speed, wherein RELAY1～RELAY3 is JZC-36F, realization fan unit height, in, the switching of low third gear wind speed, RELAY4～RELAY5 is JZC-32F, the switch control that realizes refrigeration or heat.
Described analogue communication circuit mainly comprises optocoupler U16, U17, triode Q1 and reverser U8F, 15 pin of described microprocessor U7 are through being connected to the base stage of described triode Q1 behind the described reverser U8F, the grounded emitter of described triode Q1, colelctor electrode connects 2 pin of described optocoupler U16 through a resistance R 11 backs, 4 pin of described optocoupler U16 directly link to each other with 1 pin of optocoupler U17, the 2 pin process fuse of U17 links to each other with the analog communication module in the described control module, carries out exchanges data with described control module.
Based on said structure, the cold of described air-conditioning distributes the integrating process as follows: the integrating of cold equivalent is to detect the time span that electronic cold valves is opened by output module, thereby detects the time (producing the time of refrigeration) that fan coil uses chilled water.Simultaneously, the blower fan that detects fan coil by output module is among the time span that electronic cold valves is opened, and high, medium and low three speed take the length of running time respectively.
(1) table 6 is corresponding refrigeration parameter lists of different size disc manage-style speed of certain brand fan coil.
Table 6
According to table 6, the coil pipe that adopts the FP-10 specification is at the cold value of middle-grade wind speed benchmark as a comparison.Thereby calculate the coefficient of refrigerating performance of coil pipe under three kinds of wind friction velocities of other specifications.For example, under above-mentioned rule the FP-10 coil pipe at middle-grade coefficient of refrigerating performance=4800/4800=1.000, and at the coefficient of refrigerating performance=5300/4800=1.104 of top grade, low-grade coefficient of refrigerating performance=4100/4800=0.854.The coil pipe of other specifications by that analogy.
The fan coil of the different size that table 7 calculates according to said method corresponding coefficient of refrigerating performance table under three kinds of wind speed states, i.e. K under the corresponding specification
JH, K
JM, K
JLValue.
Table 7
(2) opening time of detection cold valves correspondence under three kinds of different wind speed of coil pipe, i.e. the opening time of the electric two-way valve of the high, medium and low third gear wind speed switching of coil pipe blower fan, be t
H, t
M, t
L
(3) must consider the influence of the operation of fan coil in actual applications, therefore, must avoid because system equipment causes the mistake metering to indoor central air-conditioning consumption to the indoor air temperature variation.Therefore introduced the chain metering algorithm of temperature: be between 23～27 ℃ and change when control panel detects indoor temperature (summer), after the wind pushing temperature that output module detects fan coil is in and changes between 15～20 ℃.In other words, after central air-conditioning system was in normal cooling state, the central air-conditioning cold distributed the constant temperature table just to begin the cold coefficient of integrating fan coil.
(4) refrigeration host computer running status and the chain algorithm of regional Cold water tap opening (Fig. 2,3).When the refrigeration host computer of central air-conditioning system brings into operation, and cold water is transported to after each zone (floor) is in the cold valves of opening by chilled water pump, be in charge of the zone manager of refrigeration host computer and regional cold valves state detection module, by being in charge of the broadcast related running state information of zone manager of central air-conditioning cold allocation table.By the communication interface on the control module, receive that the control module of above-mentioned information just begins the cold coefficient of integrating fan coil.
(5) like this, the coefficient of refrigerating performance of the fan coil of different size under different wind speed states just produced.Therefore, the cold equivalent of fan coil just can calculate according to following formula:
E
i＝t
H·K
jH+t
M·K
jM+t
L·K
jL
In the formula:
E
i-Di i the cold coefficient that table consumes;
t
H-fan coil is at the time of high-grade wind speed operation, s;
t
M-fan coil is at the time of middle-grade wind speed operation, s;
t
H-fan coil is at the time of low-grade wind speed operation, s;
K
JH-j type fan coil is at the theoretical coefficient of refrigerating performance of high-grade wind speed;
K
JM-j type fan coil is at the theoretical coefficient of refrigerating performance of middle-grade wind speed;
K
JL-j type fan coil is at the theoretical coefficient of refrigerating performance of low-grade wind speed;
Control module is according to current coil pipe fan operation state, and the motor-driven valve on off state effectively charges, and is stored in the memory, by M-BUS communication interface and zone manager communication, is transferred in the computer management system, carries out accounting management.Described control module receives the host computer instruction by communication interface and realizes management of time type charging temperature controller and control.
In addition, can also carry out thermostatic control to indoor temperature, be by the temperature in the control module sensing chamber and with the predefined desired temperature in inside relatively after, send corresponding order, the electronic cold valves relay of control output module, the action that realization opens or closes, thus realize indoor thermostatic control.When the wind speed control of setting fan coil, during for " manually " state, carry out the manual adjustment of wind speed by the user; During for " automatically " state, control panel sends control commands corresponding by comparing the gap of indoor temperature value and preset temperature value, and the wind speed control relay in the control output module makes fan operation at corresponding wind speed gear.
Like this,, realize reasonably chargeing, can impel the central air-conditioning user to form energy-conservation custom, improve rate of energy by the reasonable metering that the cold in the utility model distributes.Simultaneously unique detection pattern in the utility model and novel structure that central air-conditioning cold billing function and radiator valve are united two into one, greatly reduce cooling metering and temperature controlled cost, reduce the expense of estate management, improved the level of management.
More than central air-conditioning cold distribution and computation table provided by the utility model is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. central air-conditioning cold distribution and computation table, comprise and be used to control with the control module of cold integrating and be used to carry out the control of described control module and the output module of acquisition, it is characterized in that: comprise continuous microprocessor and telecommunication circuit in the described control module, comprise another microprocessor and telecommunication circuit that links to each other with described another microprocessor respectively and driving executive circuit in the described output module, telecommunication circuit by separately between described control module and the output module is connected and communicates, described driving executive circuit is controlled motor-driven valve and refrigeration to the wind speed in the described central air-conditioning respectively or is heated the control motor-driven valve and realizes control, described driving executive circuit is to the state of a control of described each motor-driven valve, successively through measuring in the microprocessor that sends to described control module by described two telecommunication circuits.
2. central air-conditioning cold distribution and computation table according to claim 1, it is characterized in that: the telecommunication circuit in the described control module comprises M-BUS telecommunication circuit and analogue communication circuit, telecommunication circuit in the described output module also is the analogue communication circuit, and corresponding continuous with the analogue communication circuit in the described control module.
3. central air-conditioning cold distribution and computation table according to claim 1 and 2, it is characterized in that: the analog communication circuit in the described control module is used for realizing communicating by letter with output module, comprise two optocouplers, a triode, a light emitting diode and peripheral a plurality of resistance thereof, 2 pin of wherein said first optocoupler connect the emitter stage of described triode after through a resistance, the grounded collector of described triode, 19 pin that base stage connects described microprocessor link to each other, 4 pin of described another optocoupler are connected with 1 pin of first optocoupler, 5 pin connect 20 pin of described microprocessor, and simultaneously through pull-up resistor connection+3.3V power supply, anodal connection+3.3V the power supply of described light emitting diode, negative pole links to each other with the emitter stage of described triode behind a resistance.
4. central air-conditioning cold distribution and computation table according to claim 1 and 2, it is characterized in that: the analogue communication circuit in the described output module mainly comprises two optocouplers, a triode and a reverser, 15 pin of microprocessor are through being connected to the base stage of described triode in the described output module behind the described reverser, the grounded emitter of described triode, colelctor electrode connects 2 pin of described first optocoupler after through a resistance, 4 pin of described first optocoupler directly link to each other with 1 pin of second optocoupler, the 2 pin process fuse of second optocoupler links to each other with the analog communication module in the described control module, carries out exchanges data with described control module.
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| CN 200520129555 CN2924379Y (en) | 2005-10-25 | 2005-10-25 | Central air conditioning cooling-energy distributing meter |
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| CN 200520129555 CN2924379Y (en) | 2005-10-25 | 2005-10-25 | Central air conditioning cooling-energy distributing meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130596A (en) * | 2016-08-10 | 2016-11-16 | 浙江恒业电子有限公司 | Telecommunication circuit for intelligent electric meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130596A (en) * | 2016-08-10 | 2016-11-16 | 浙江恒业电子有限公司 | Telecommunication circuit for intelligent electric meter |
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| C14 | Grant of patent or utility model | ||
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Owner name: BOCHENG INTELLECTUAL SCIENCE AND TECHNOLOGY CO., L Free format text: FORMER OWNER: FOGANG BAICHENG INTELLIGENT SCI. + TECH. CO., LTD. Effective date: 20101124 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 511600 LIANHE HUASHAN INDUSTRIAL ZONE, TANGTANG TOWN, FOGANG COUNTY, GUANGDONG PROVINCE TO: 511442 1/F, BUILDING 5, NO.1, NANLI ROAD, NANCUN TOWN, PANYU DISTRICT, GUANGZHOU CITY |
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| TR01 | Transfer of patent right |
Effective date of registration: 20101124 Address after: 511442, Guangzhou, Panyu District, South Village, 1 South Road, No. 5, building on the first floor Patentee after: Basic Intelligence Technology Co., Ltd. Address before: 511600 Guangdong County of Fogang Province Tang Tang Zhen and Huashan Industrial Zone Patentee before: Fogang Bocheng Intellectual Science and Technology Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Central air conditioning cooling-energy distributing meter Effective date of registration: 20120105 Granted publication date: 20070718 Pledgee: Deqin Huarun village bank Limited by Share Ltd Pledgor: Basic Intelligence Technology Co., Ltd. Registration number: 2012990000013 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120327 Granted publication date: 20070718 Pledgee: Deqin Huarun village bank Limited by Share Ltd Pledgor: Basic Intelligence Technology Co., Ltd. Registration number: 2012990000013 |
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| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 510663, Guangdong high tech Industrial Science City, Guangzhou science road 182, innovation building, C3 District, eighth layers, 803 units Patentee after: Basic Intelligence Technology Co., Ltd. Address before: 510000, Guangdong, Guangzhou province Panyu District South Village, 1 South Road, No. 5, building on the first floor Patentee before: Basic Intelligence Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
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| EXPY | Termination of patent right or utility model |