CN1221787C - Separated metering method and system for central air conditioner - Google Patents
Separated metering method and system for central air conditioner Download PDFInfo
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- CN1221787C CN1221787C CN 01137204 CN01137204A CN1221787C CN 1221787 C CN1221787 C CN 1221787C CN 01137204 CN01137204 CN 01137204 CN 01137204 A CN01137204 A CN 01137204A CN 1221787 C CN1221787 C CN 1221787C
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Abstract
The present invention discloses a central air conditioner family splitting metering method and a central air conditioner family splitting metering system which belong to a measuring method and a device relevant to heat energy. In the method, a computer dynamically calculates the total refrigerating capacity W1 of the standard condition of the whole system and the return air temperature of fan coils in a sampling system by measuring the actual total refrigerating capacity W1 within specific time intervals; in this way, the standard condition refrigerating capacity Qi of the fan coils are used for calculating the actual refrigerating capacity Qi' of the fan coils by using corresponding temperature correcting parameters Cj according to W1/W2=Qi'/(Qi*Cj); further, the actual total refrigerating capacity used by uses is calculated and displayed. The family splitting metering system comprises an inlet and outlet water temperature sensor (3), a flow meter (4) and a computer (30); each fan coil in the system is provided with an air quantity sensor (22), and a temperature sensor (21) is installed at an air return opening.
Description
The invention discloses a kind of central air conditioner divided gauging method and central air conditioner household metering system, belong to measuring method and the equipment relevant with heat energy.
Background technology
What traditional central air conditioner (central heating) charge system adopted is that each household one overlaps energy instrument or overlaps the energy instrument calculating energy more, it is more reasonable that this computing method surface is taken a fancy to, but central air conditioner (or central heating) system because of the water quality reason to the requirement of flowmeter than higher, what generally adopt is ultrasonic flow meter, the flowmeter of types such as vortex street, these flowmeters are the cost height not only, and annual need the rectification once, and often in real work, the rectification work of this respect can not be done by infrastructure management company, need to ask specialized company or national metrological service to be corrected, but expense is very high again, the user is difficult to bear, so in metering, tend to cause bigger dispute, can't popularize.The relation that Chinese patent CN1176379A " public central air conditioner household metering control method and device " proposition utilizes user's air supply motor running power demand to be directly proportional with the air-conditioning ability, according to the conversion of air supply motor running power demand and export a signal value to computer, computer calculates the payable expense of each family actual use air-conditioning according to signal value again by electric power converter.This method is not considered each user's room temperature not simultaneously, and under the identical condition of air supply motor power, the heat of the actual acquisition of each user is different.So this method and apparatus deviation when reality is used is bigger, still can not satisfy the requirement of user and administrative authority.
Technology contents
The purpose of this invention is to provide a kind of central air conditioner divided gauging method that uses better simply measurement mechanism just can reflect the actual acquisition of each user cooling power.
Another object of the present invention provides a kind of central air conditioner household metering system based on above-mentioned metering method.
First purpose of the present invention is achieved in that
The central air conditioner divided gauging method: whole central air conditioner system is divided into a plurality of users, and each user has one or more fan coil; Measure the actual overall refrigerating effect W of total system with specified time interval
1Use computer dynamic statistics total system standard condition overall refrigerating effect W
2, the return air temperature of each fan coil in the sampling system is selected corresponding temperature correction parameters C in view of the above for use
j, according to W
1/ W
2=Q
i'/(Q
iC
j) relation, with each fan coil standard condition refrigerating capacity Q
iCalculate the actual refrigerating capacity Q of each fan coil
i', the actual refrigerating capacity Q of all fan coils of each user
i' addition respectively calculates each user interior actual refrigerating capacity of using of interbody spacer at this moment; And then continuous integration measures the refrigerating capacity of the total actual use of each user.
The actual overall refrigerating effect W of described measurement total system
1Can be: with the water-in and water-out temperature and the discharge of computer sampling system and calculate total system actual overall refrigerating effect W in the interbody spacer at this moment
1
Described use computer dynamic statistics total system standard condition overall refrigerating effect W
2Can be: in computer, deposit the standard condition refrigerating capacity Q of each fan coil when different air quantity in
i, computer is determined wind turbine coil pipe Current Standard operating mode refrigerating capacity Q in view of the above with the sample air volume signal of each fan coil of the described time interval
i, and with they additions, the current standard condition overall refrigerating effect W of the system that calculates
2
Described specified time interval was 5 seconds.
Another object of the present invention is achieved in that
The central air conditioner household metering system: whole central air conditioner system is divided into a plurality of users, and each user has one or more fan coil.At the top of the water inlet manifold of central air conditioner system and the terminal of total rising pipe a temperature sensor is installed respectively respectively.Water inlet manifold or total rising pipe in central air conditioner system are installed flowmeter.The output terminal of two temperature sensors and flowmeter is connected with computer.Each typhoon coiler is installed an air flow sensor and at the return air inlet place temperature sensor is installed in the system, and computer is connected with air flow sensor with the temperature sensor of each fan coil; There is the rectification parameters C of fan coil in the computer at different return air temperatures
jWith the standard condition refrigerating capacity Q of each fan coil when the different air quantity
iComputer calculates whole central air conditioner system actual overall refrigerating effect W in this time interval with specified time interval sampling water-in and water-out temperature and discharge
1Computer is determined wind turbine coil pipe Current Standard operating mode refrigerating capacity Q in view of the above with the sample air volume signal of each fan coil of the described time interval
i, and, calculate whole central air conditioner system interbody spacer internal standard operating mode overall refrigerating effect W at this moment with they additions
2Computer is selected the corresponding parameters C of correcting in view of the above with the sample temperature signal of each fan coil of the described time interval
j, by formula: Q
i'=C
j* (W
1/ W
2) * Q
iCalculate the actual refrigerating capacity Q of each fan coil in this time interval
i'; The actual refrigerating capacity Q of each all fan coil of user
i' addition respectively calculates each user interior actual refrigerating capacity of using of interbody spacer at this moment; And then the computer continuous integration measure the total actual use of each user refrigerating capacity and shown.
Described computer also can adopt distributed frame, and its digital calculating equipment comprises an energy meter, a gross energy calculating instrument and energy proportion calculating instrument of each user; The output terminal of two temperature sensors and flowmeter is connected with energy meter, the output of energy meter is connected with the gross energy calculating instrument through data line, and energy meter is with specified time interval sampling water-in and water-out temperature and discharge and calculate whole central air conditioner system actual overall refrigerating effect W in the interbody spacer at this moment
1, and be sent to the gross energy calculating instrument; All energy proportion calculating instruments are connected with the gross energy calculating instrument through data line; There is the rectification parameters C of fan coil in each energy proportion calculating instrument at different return air temperatures
jWith affiliated each fan coil standard condition refrigerating capacity Q when the different air quantity
iEvery energy proportion calculating instrument reaches with the air flow sensor of this user's fan coil by lead and is connected with temperature sensor.The air volume signal of the air flow sensor of each fan coil under the energy proportion calculating instrument read with the described time interval is determined this user's wind turbine coil pipe Current Standard operating mode refrigerating capacity Q in view of the above
i, and, calculate the current standard condition overall refrigerating effect of this user with they additions, be sent to the gross energy calculating instrument through data line.The gross energy calculating instrument calculates whole central air conditioner system to each user's current standard condition overall refrigerating effect addition at described time interval internal standard operating mode overall refrigerating effect W
2The energy proportion calculating instrument reads actual overall refrigerating effect W in the gross energy calculating instrument with the described time interval
1With standard condition overall refrigerating effect W
2And the temperature sensor signal of each fan coil of sampling, and according to the corresponding parameters C of correcting of the temperature sensor signal selection of each fan coil
j, by formula: Q
i'=C
j* (W
1/ W
2) * Q
iCalculate the actual refrigerating capacity Q of each fan coil in this time interval
i'.The actual refrigerating capacity Q of each fan coil in this time interval
i' addition calculates this user interior actual refrigerating capacity of using of interbody spacer at this moment; And then continuous integration measure the total actual use of each user refrigerating capacity and shown.
Described gross energy calculating instrument is the microprocessor with a plurality of data-interfaces, and its a data interface is connected with energy meter by data line, and other data-interface is connected with each energy proportion calculating instrument by data line respectively;
Described energy proportion calculating instrument is the microprocessor that includes two groups of sampling input ends and a digital indicator and a data interface.Wherein one group of sampling input end connects the temperature sensor of wind turbine coil pipe respectively; Another group sampling input end connects the air flow sensor of wind turbine coil pipe respectively.Data-interface is connected with the gross energy calculating instrument by data line.The digital indicator of microprocessor shows the cooling power data.
Central air conditioner divided gauging method of the present invention and central air conditioner household metering system, owing to system and each user's standard condition refrigerating capacity is carried out dynamic statistics with computer, and the return air temperature of each fan coil measured and measures correction, reflected the refrigeration/thermal energy of the actual use of user more really.Particularly adopt the computer of distributed frame, the user can understand the refrigeration/thermal energy of actual use intuitively, and is convenient to time update and expansion when the user changes.Computer equipment, air flow sensor and temperature sensor that system uses are also simpler, cheap, so system price is lower.The investment cost of total system is about 30% of a legacy system.System architecture is open, is easy to apply.Need only correct a flowmeter every year, electronic equipment such as computer and device need not special rectification, and this just can save the spending of great amount of manpower and material resources.
Below in conjunction with drawings and Examples central air conditioner divided gauging method of the present invention and central air conditioner household metering system are described further.
The drawing explanation
Fig. 1 is an embodiment general structure block scheme of the central air conditioner household metering system of central air conditioner divided gauging method of the present invention and central air conditioner household metering system.
Fig. 2 is the general structure block scheme of another embodiment of the central air conditioner household metering system of central air conditioner divided gauging method of the present invention and central air conditioner household metering system.
Embodiment
The central air conditioner system user direct contact to be end prod, if can all measure out respectively, have so just solved the energy meter problem to the energy of end prod.
The central air conditioner end has two big classes, the one, fan coil, the 2nd, wind cabinet.The principal element that influences the refrigerating capacity of fan coil and wind cabinet is that water supply water temperature and ambient operating temperature are operating mode.The fan coil of equal-wattage or wind cabinet refrigeration/heat energy power are the same under same working condition.In the following discussion, we mention the situation that fan coil also comprises the wind cabinet, explanation no longer separately.
Influence the principal element of refrigerating capacity of the fan coil of central air conditioner, the one, unit refrigeration work consumption size (referring to unit model size), the 2nd, water supply water temperature and ambient operating temperature are operating mode.
Under the constant condition of indoor temperature, the water supply water temperature is low more, and the temperature difference is big more, and refrigerating efficiency is high more.The refrigerating capacity of different model fan coil is identical with the relation curve of water supply water temperature basically, so there is following relation in the refrigerating capacity of each fan coil:
Q
1′/Q
1＝Q
2′/Q
2
Q
1------the refrigerating capacity of----expression standard condition A fan coil
Q
1'----------represents the refrigerating capacity of another water temperature point A fan coil
Q
2------the refrigerating capacity of----expression standard condition B fan coil
Q
2'-----------expression and Q
1The refrigerating capacity of ' identical water temperature point operating mode B fan coil
The water supply water temperature is in non-standard operating mode, and under the constant condition of indoor temperature, the actual overall refrigerating effect W of whole central air conditioner system
1=Q
1'+Q
2'+Q
3'+Q
4' ....
The water supply water temperature is at standard condition, and under the constant condition of indoor temperature, the standard condition overall refrigerating effect W of whole central air conditioner system
2=Q
1+ Q
2+ Q
3+ Q
4....
Then have: W
1/ W
2=Q
i'/Q
i
Usually producer provides fan coil standard condition refrigerating capacity Q.
Under the constant condition of water supply water temperature, the high more refrigerating capacity of environment temperature is big more, otherwise more little in the process of refrigeration.As identical fan coil refrigerating capacity when return air temperature is at 30 ℃ under the identical condition of water temperature 25 ℃ about 1.6 times, if do not consider the return air temperature of working environment, this metered scheme no way intended justice is so have to be measured at the compensation coefficient C of different return air temperatures
j, then top formula becomes: W
1/ W
2=Q
i'/(Q
i* C
j)
For a definite central air conditioner system, standard condition overall refrigerating effect W
2Can be according to the standard condition refrigerating capacity Q of every typhoon coiler
iCalculate actual overall refrigerating effect W
1Can measure, measure return air temperature, choose corresponding compensation coefficient C
j, just can calculate the actual refrigerating capacity Q of every typhoon coiler
i', that is:
Q
i′＝C
j*(W
1/W
2)*Q
i
In the real work situation, each fan coil may be selected different air quantity at any time because of the user, thereby changes the power of this fan coil, and supply water temperature and return air temperature also can change.As long as divide the time interval of metering very little, supply water temperature and return air temperature can not think and can change, at any time the air quantity of each fan coil is changed and monitored, and time update fan coil standard condition refrigerating capacity Q
iValue and the standard condition overall refrigerating effect W in the system
2, the actual refrigerating capacity Q that calculates every typhoon coiler in this time interval that then can be correct
i'.
Obtain central air conditioner divided gauging method of the present invention in sum: whole central air conditioner system is divided into a plurality of users, and each user has one or more fan coil.Acoustic wind coiler 20 is at j=1 ℃ in advance, and 2 ℃, 3 ℃ ... 40 ℃ of rectification parameters C of totally 40 different return air temperatures
jAnd make a copy of or measure each fan coil 20 in advance at first grade, second grade, standard condition refrigerating capacity Q during the third gear air quantity
iAnd pre-deposit computer.With the 5 specific time intervals in second with the water-in and water-out temperature and the discharge of computer sampling system and calculate total system actual overall refrigerating effect W in the interbody spacer at this moment
1Computer is determined wind turbine coil pipe Current Standard operating mode refrigerating capacity Q in view of the above with the sample air volume signal of each fan coil of the described time interval
i, and with they additions, the current standard condition overall refrigerating effect W of the system that calculates
2The return air temperature of each fan coil in the sampling system is selected corresponding temperature correction parameters C in view of the above for use
j, according to W
1/ W
2=Q
i'/(Q
i* C
j) relation, with each fan coil standard condition refrigerating capacity Q
iCalculate the actual refrigerating capacity Q of each fan coil
i', the actual refrigerating capacity Q of all fan coils of each user
i' addition respectively calculates each user interior actual refrigerating capacity of using of interbody spacer at this moment; And then continuous integration measures the refrigerating capacity of the total actual use of each user.
As the case may be, the described time interval also can be chosen to be 10 seconds or other numerical value.The scope of return air temperature and the number of temperature spot are promptly corrected parameters C
jQuantity in different occasions, also can be adjusted as required.In like manner, each fan coil air quantity stepping also can be adjusted as the case may be.
An embodiment of central air conditioner household metering system who realizes described central air conditioner divided gauging method is please referring to Fig. 1, the water inlet manifold 1 of central air conditioner system and total rising pipe 2 a plurality of (being designated as i) fan coils 20 that insert in parallel.Whole central air conditioner system is divided into a plurality of users, and each user has one or more fan coil 20; At the top of the water inlet manifold 1 of central air conditioner system and the terminal of total rising pipe 2 temperature sensor 3 is installed respectively respectively, water inlet manifold 1 or total rising pipe 2 in central air conditioner system are installed flowmeter 4, the output terminal of two temperature sensors 3 and flowmeter 4 is connected with computer 30, each typhoon coiler 20 is installed an air flow sensor 22 and at the return air inlet place temperature sensor 21 is installed in the system, and computer 30 is connected with air flow sensor 22 with the temperature sensor 21 of each fan coil 20; There is fan coil 20 in the computer 30 at j=1 ℃, 2 ℃, 3 ℃ ... 40 ℃ of rectification parameters C of totally 40 different return air temperatures
jWith each fan coil 20 at first grade, second grade, standard condition refrigerating capacity Q during the third gear air quantity
iComputer 30 calculates whole central air conditioner system actual overall refrigerating effect W in this time interval with specific 5 time intervals in second sampling water-in and water-out temperature and discharge
1The sample air volume signal of each fan coil 20 is determined wind turbine coil pipe 20 Current Standard operating mode refrigerating capacity Q in view of the above
i, and, calculate whole central air conditioner system interbody spacer internal standard operating mode overall refrigerating effect W at this moment with they additions
2The sample temperature signal of each fan coil 20 is selected the corresponding parameters C of correcting in view of the above
j, by formula: Q
i'=C
j* (W
1/ W
2) * Q
iCalculate the actual refrigerating capacity Q of each fan coil 20 in this time interval
i'.The actual refrigerating capacity Q of all fan coils 20 of each user
i' addition respectively, calculate each user interior actual refrigerating capacity of using of interbody spacer at this moment; And then computer 30 continuous integrations measure the total actual use of each user refrigerating capacity and shown.
Another embodiment of central air conditioner household metering system of the present invention is please referring to Fig. 2, computer 30 adopts distributed frames in the present embodiment, and its digital calculating equipment comprises an energy meter 5, a gross energy calculating instrument 6 and an energy proportion calculating instrument 10 of each user.
In the present embodiment, the water inlet manifold 1 of central air conditioner system and total rising pipe 2 a plurality of (being designated as i) fan coils 20 that insert in parallel.At the top of the water inlet manifold 1 of central air conditioner system and the terminal of total rising pipe 2 temperature sensor 3 is installed respectively respectively.Water inlet manifold 1 or total rising pipe 2 in central air conditioner system are installed flowmeter 4.The output terminal of two temperature sensors 3 and flowmeter 4 is connected with energy meter 5, and the output of energy meter 5 is connected with gross energy calculating instrument 6 through data line 7.Water-in and water-out temperature by measuring water inlet manifold 1 and total rising pipe 2 and discharge draw whole central air conditioner system actual overall refrigerating effect W in 5 second time interval with energy meter 5
1, and be sent to gross energy calculating instrument 6.Whole central air conditioner system is divided into a plurality of users, and each user has one or more fan coil 20.Energy proportion calculating instrument 10 of each user installation.All energy proportion calculating instruments 10 are connected with gross energy calculating instrument 6 through data line 7.There is fan coil 20 at j=1 ℃ in each energy proportion calculating instrument 10,2 ℃, 3 ℃ ... 40 ℃ of rectification parameters C of totally 40 different return air temperatures
jWith each fan coil 20 under it at first grade, second grade, standard condition refrigerating capacity Q during the third gear air quantity
iEvery energy proportion calculating instrument 10 is connected with the air flow sensor 22 of one or more fan coil 20 of this user by lead 8.The air volume signal of the air flow sensor 22 of each fan coil 20 under energy proportion calculating instrument 10 read with 5 second time interval, determine this user's wind turbine coil pipe 20 residing gears according to the air volume signal of air flow sensor 22, and then selected this user's wind turbine coil pipe 20 Current Standard operating mode refrigerating capacity Q
iValue (if certain typhoon coiler 20 shutdown, then Current Standard operating mode refrigerating capacity Q
iBe 0), and, calculate the current standard condition overall refrigerating effect of this user with they additions, be sent to gross energy calculating instrument 6 through data line 7.Gross energy calculating instrument 6 calculates whole central air conditioner system to each user's current standard condition overall refrigerating effect addition at 5 seconds internal standard operating mode overall refrigerating effect W
2Every energy proportion calculating instrument 10 is connected with the temperature sensor 21 at the return air inlet place of one or more fan coil 20 of this user by lead 8.Energy proportion calculating instrument 10 read actual overall refrigerating effect W in the gross energy calculating instrument 6 with 5 second time interval
1With standard condition overall refrigerating effect W
2And the temperature sensor signal of each fan coil 20, and according to the corresponding parameters C of correcting of the temperature sensor 21 signals selection of each fan coil 20
j, by formula: Q
i'=C
j* (W
1/ W
2) * Q
iCalculate each fan coil 20 refrigerating capacity Q in 5 seconds
i'; The refrigerating capacity Q of each fan coil 20 in 5 seconds that calculates
i' addition obtains the refrigerating capacity of all fan coils 20 of this user in 5 seconds, and this user is added up continuously in the refrigerating capacity of continuous all fan coils 20 of the variant time interval to draw the cooling power value that this user's accumulative total uses and shown.
Gross energy calculating instrument 6 is the microprocessor with a plurality of data-interfaces, and its a data interface is connected with energy meter 5 by data line 7, and other data-interface is connected with each energy proportion calculating instrument 10 by data line 7 respectively.
Energy proportion calculating instrument 10 is the microprocessor that include two groups of sampling input ends and a digital indicator and a data interface.Wherein one group of sampling input end connects the temperature sensor 21 of wind turbine coil pipe 20 respectively.Another group sampling input end connects the air flow sensor 22 of wind turbine coil pipe 20 respectively.Data-interface is connected with gross energy calculating instrument 6 by data line 7.The digital indicator of microprocessor shows the cooling power data.
In this example, data-interface is selected the RS-485 interface for use, also can select other interface for use as the case may be.
Obviously, adopt this routine computer architecture, the user can get information about the cooling power that oneself uses; Simultaneously, a certain user's equipment configuration changes in system, as long as do change on this user's energy proportion calculating instrument 10; When adding new user in the system, as long as add corresponding energy proportion calculating instrument 10; The adjustment of system is very convenient.
Because central refrigerating is identical with the reason of central heating, central air conditioner divided gauging method of the present invention and central air conditioner household metering system also can be used for central heating system.Employing the method needs only the relevant regulations according to country, and an annual flowmeter to system is corrected and got final product, and electron devices such as gross energy calculating instrument and energy proportion calculating instrument need not to correct.So just can save the spending of great amount of manpower and material resources, and the investment cost of total system is about 30% of legacy system, for the energy-conservation of central air conditioner aspect and estate management robotization provide new means.
Claims (6)
1. central air conditioner divided gauging method, it is characterized in that: whole central air conditioner system is divided into a plurality of users, and each user has one or more fan coil; Measure the actual overall refrigerating effect W of total system with specified time interval
1Use computer dynamic statistics total system standard condition overall refrigerating effect W
2, the return air temperature of each fan coil in the sampling system is selected corresponding temperature correction parameters C in view of the above for use
j, according to W
1/ W
2=Q
i'/(Q
i* C
j) relation, with each fan coil standard condition refrigerating capacity Q
iCalculate the actual refrigerating capacity Q of each fan coil
i', the actual refrigerating capacity Q of all fan coils of each user
i' addition respectively, calculate each user interior actual refrigerating capacity of using of interbody spacer at this moment; And then continuous integration measures the refrigerating capacity of the total actual use of each user.
2. central air conditioner divided gauging method according to claim 1 is characterized in that: the actual overall refrigerating effect W of described measurement total system
1Be: with the water-in and water-out temperature and the discharge of computer sampling system and calculate total system actual overall refrigerating effect W in the interbody spacer at this moment
1
3. central air conditioner divided gauging method according to claim 1 and 2 is characterized in that: described use computer dynamic statistics total system standard condition overall refrigerating effect W
2Be: in computer, deposit the standard condition refrigerating capacity Q of each fan coil when different air quantity in
i, computer is determined wind turbine coil pipe Current Standard operating mode refrigerating capacity Q in view of the above with the sample air volume signal of each fan coil of the described time interval
i, and with they additions, the current standard condition overall refrigerating effect W of the system that calculates
2
4. central air conditioner divided gauging method according to claim 1 is characterized in that: described specified time interval was 5 seconds.
5. central air conditioner household metering system, it is characterized in that: whole central air conditioner system is divided into a plurality of users, and each user has one or more fan coil (20); At the top of the water inlet manifold (1) of central air conditioner system and the terminal of total rising pipe (2) temperature sensor (3) is installed respectively respectively, water inlet manifold (1) or total rising pipe (2) in central air conditioner system are installed flowmeter (4), the output terminal of two temperature sensors (3) and flowmeter (4) is connected with computer (30), each typhoon coiler (20) is installed an air flow sensor (22) and at the return air inlet place temperature sensor (21) is installed in the system, and computer (30) is connected with air flow sensor (22) with the temperature sensor (21) of each fan coil (20); There is the rectification parameters C of fan coil (20) in the computer (30) at different return air temperatures
jWith the standard condition refrigerating capacity Q of each fan coil (20) when the different air quantity
iComputer (30) calculates whole central air conditioner system actual overall refrigerating effect W in this time interval with specified time interval sampling water-in and water-out temperature and discharge
1Computer (30) is determined wind turbine coil pipe (20) Current Standard operating mode refrigerating capacity Q in view of the above with the sample air volume signal of each fan coil (20) of the described time interval
i, and, calculate whole central air conditioner system interbody spacer internal standard operating mode overall refrigerating effect W at this moment with they additions
2Computer (30) is selected the corresponding parameters C of correcting in view of the above with the sample temperature signal of each fan coil (20) of the described time interval
j, by formula: Q
i'=C
j* (W
1/ W
2) * Q
iCalculate the actual refrigerating capacity Q of each fan coil (20) in this time interval
i'; The actual refrigerating capacity Q of all fan coils of each user (20)
j' addition respectively calculates each user interior actual refrigerating capacity of using of interbody spacer at this moment; And then computer (30) continuous integration measure the total actual use of each user refrigerating capacity and shown.
6. central air conditioner household metering system according to claim 5, it is characterized in that: described computer (30) adopts distributed frame, and its digital calculating equipment comprises an energy meter (5), a gross energy calculating instrument (6) and an energy proportion calculating instrument of each user (10); The output terminal of two temperature sensors (3) and flowmeter (4) is connected with energy meter (5), the output of energy meter (5) is connected with gross energy calculating instrument (6) through data line (7), and energy meter (5) is with specified time interval sampling water-in and water-out temperature and discharge and calculate whole central air conditioner system actual overall refrigerating effect W in the interbody spacer at this moment
1, and be sent to gross energy calculating instrument (6); All energy proportion calculating instruments (10) are connected with gross energy calculating instrument (6) through data line (7); There is the rectification parameters C of fan coil (20) in each energy proportion calculating instrument (10) at different return air temperatures
jWith affiliated each fan coil (20) standard condition refrigerating capacity Q when the different air quantity
iEvery energy proportion calculating instrument (10) reaches with the air flow sensor (22) of this user's fan coil (20) by lead (8) and is connected with temperature sensor (21), the air volume signal of the air flow sensor (22) of each fan coil (20) under energy proportion calculating instrument (10) read with the aforementioned time interval is determined this user's wind turbine coil pipe (20) Current Standard operating mode refrigerating capacity Q in view of the above
iAnd with they additions, calculate the current standard condition overall refrigerating effect of this user, be sent to gross energy calculating instrument (6) through data line (7), gross energy calculating instrument (6) calculates whole central air conditioner system to each user's current standard condition overall refrigerating effect addition at aforementioned time interval internal standard operating mode overall refrigerating effect W
2Energy proportion calculating instrument (10) reads actual overall refrigerating effect W in the gross energy calculating instrument (6) with the described time interval
1With standard condition overall refrigerating effect W
2And the temperature sensor signal of each fan coil (20) of sampling, and according to the corresponding parameters C of correcting of temperature sensor (21) the signal selection of each fan coil (20)
j, by formula: Q
i'=C
j* (W
1/ W
2) * Q
iCalculate the actual refrigerating capacity Q of each fan coil (20) in this time interval
i': the actual refrigerating capacity Q of each fan coil (20) in this time interval
j' addition calculates this user actual refrigerating capacity of using in the interbody spacer at this moment, and then continuous integration measures the refrigerating capacity of the total actual use of this user and shown;
Described gross energy calculating instrument (6) is the microprocessor with a plurality of data-interfaces, an its data interface is connected with energy meter (5) by data line (7), and other data-interface is connected with each energy proportion calculating instrument (10) by data line (7) respectively;
Described energy proportion calculating instrument (10) is the microprocessor that includes two groups of sampling input ends and a digital indicator and a data interface; Wherein one group of sampling input end connects the temperature sensor (21) of wind turbine coil pipe (20) respectively; Another group sampling input end connects the air flow sensor (22) of wind turbine coil pipe (20) respectively; Data-interface is connected with gross energy calculating instrument (6) by data line (7); The digital indicator of microprocessor shows the cooling power data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01137204 CN1221787C (en) | 2001-10-20 | 2001-10-20 | Separated metering method and system for central air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01137204 CN1221787C (en) | 2001-10-20 | 2001-10-20 | Separated metering method and system for central air conditioner |
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| CN1344921A CN1344921A (en) | 2002-04-17 |
| CN1221787C true CN1221787C (en) | 2005-10-05 |
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| CN 01137204 Expired - Fee Related CN1221787C (en) | 2001-10-20 | 2001-10-20 | Separated metering method and system for central air conditioner |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371693C (en) * | 2003-10-22 | 2008-02-27 | 赵富 | Individual metering method for centralized heating and special metering device |
| CN100443872C (en) * | 2005-01-19 | 2008-12-17 | 特灵空调系统（江苏）有限公司 | Household metering system and method for central air conditioner |
| CN100362441C (en) * | 2005-07-06 | 2008-01-16 | 张诚实 | Fan coil metering control apparatus and heat metering method |
| CN101025370B (en) * | 2006-02-23 | 2010-10-13 | 珠海格力电器股份有限公司 | Household metering method and system for central air conditioner |
| CN101629857B (en) * | 2008-07-18 | 2013-04-10 | 纪周 | System and method for metering cooling/heating amount of air conditioners |
| CN101476764B (en) * | 2009-01-20 | 2010-06-02 | 广州大学 | Household metering system for cooling capacity of central air conditioner |
| CN103388878A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Central air conditioner charging system |
| CN104613596A (en) * | 2015-01-08 | 2015-05-13 | 黄文辉 | Central air-conditioning household metering method and system |
| CN106091297A (en) * | 2016-08-06 | 2016-11-09 | 湖南东尤水汽能节能有限公司 | A kind of wind energy household metering system |
| CN108008184B (en) * | 2017-10-31 | 2021-05-25 | 青岛海尔空调电子有限公司 | Multi-split refrigeration operation household metering method and system |
| CN110260452B (en) | 2019-05-24 | 2022-01-04 | 青岛海尔空调电子有限公司 | Multi-split air conditioning system and heat exchange amount calculation method thereof |
| CN114992798B (en) * | 2022-04-29 | 2023-04-28 | 青岛海信日立空调系统有限公司 | Air conditioning system and indoor machine capability calculating method thereof |
| CN117167906B (en) * | 2023-11-02 | 2024-01-05 | 山东德宝鑫节能科技发展有限公司 | Household metering method and system for energy consumption of air conditioner |
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2001
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