CN106369735B - A kind of fresh air conditioner replaces the amount of electricity saving of air conditioner air-conditioning to determine method - Google Patents
A kind of fresh air conditioner replaces the amount of electricity saving of air conditioner air-conditioning to determine method Download PDFInfo
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Abstract
The present invention relates to a kind of fresh air conditioners, and the amount of electricity saving of air conditioner air-conditioning to be replaced to determine method, includes the following steps: to obtain the power consumption of fresh air conditioner by surveying under the conditions of test day outdoor air dry-bulb temperature；The theoretical power consumption of air conditioner air-conditioning under same outdoor air dry-bulb temperature is calculated by simulating；The theoretical power consumption that the power consumption of fresh air conditioner subtracts air conditioner air-conditioning obtains project amount of electricity saving.The present invention gives with the determination method of air conditioner theory power consumption and theoretical runing time under the conditions of identical cooling capacity in fresh air conditioner supply chamber, power consumption calculates before being transformed to project and the amount of electricity saving identification of project provides determining method.The present invention is user, Energy Service Company, amount of energy saving audit mechanism provide the amount of energy saving identification of such technology, scientifically quantifies the energy-saving effect of this intermediate item, further pushes the application of this power-saving technology.
Description
Technical field
The present invention relates to a kind of energy saving measurement and verification method technologies, and in particular to a kind of fresh air conditioner replaces air conditioner
The amount of electricity saving of air-conditioning determines method.
Background technique
Refrigeration duty is larger, the longer air conditioning area of air-conditioner operation time, such as Substation control room, due to there are a large amount of prisons
The equipment instrument such as survey, control, equipment is concentrated and calorific value is big, and equipment is more demanding to ambient temperature and humidity.In summer, interior is complete
It has very big refrigeration requirement for 24 hours, and most of control rooms are all made of cabinet air conditioner cooling supply, i.e. air conditioner air-conditioning, and
Control mode is more extensive, and summer air-conditioning device is maximum capability operation, empty under the lower weather condition of part outdoor temperature
The power output of device is adjusted to be well beyond indoor refrigeration requirement.Fresh air conditioner i.e. in Arid Area, when outdoor air dry-bulb temperature compared with
When low, the fresh air of outdoor lower temperature is sent directly by room conditioning area using ventilation blower, and by reasonable air current composition come
Keep indoor temperature and humidity conditions.
Currently, fresh air conditioner is as one kind at " transition season " due to the attention that the whole society works for energy-saving and emission-reduction
(" transition season " refers to air conditioning condition subregion range relevant to indoor and outdoor air parameter, is joined by indoor and outdoor air
Number relatively determines.Will appear " transition season " operating condition in air conditioning condition conversion or when the morning and evening, the temperature difference was larger) it uses
Energy-saving effect it is significant, the reliable power-saving technology of technology maturation applied at home by building field, which exists
Application in the regions such as Substation control room can significantly reduce electricity consumption, so accurate and practical amount of electricity saving determination side
Method impetus good for the popularization of the technology.Currently, country has formulated the technology general rule of energy saving measurement and verifying, but
It is not replace the amount of electricity saving of air conditioner air-conditioning to determine method for fresh air conditioner.
Summary of the invention
To solve above-mentioned deficiency of the prior art, the object of the present invention is to provide a kind of fresh air conditioners to replace air conditioner empty
The amount of electricity saving of tune determines method, and application of this method in the regions such as Substation control room can significantly reduce electricity consumption.
The purpose of the present invention is adopt the following technical solutions realization:
The present invention provides a kind of fresh air conditioner and the amount of electricity saving of air conditioner air-conditioning is replaced to determine method, it is improved in that
The method includes the following steps:
Step 1: determining the power consumption of fresh air conditioner；
Step 2: determining the theoretical power consumption of air conditioner air-conditioning；
Step 3: amount of electricity saving of identifying project.
Wherein, in the step 1, the power consumption of fresh air conditioner is to survey under the conditions of test day outdoor air dry-bulb temperature
Value.
Wherein, in the step 2, the theoretical power consumption of air conditioner air-conditioning passes through dry with the same outdoor air in step 1
Ball temperature Imitating is calculated, comprising:
Select air conditioner nominal condition and two operating status points of cryogenic refrigeration operating condition；
The nominal condition corresponds to the operating condition of air conditioner rated cooling capacity, and 35 DEG C of outdoor air dry-bulb temperature, outdoor air
24 DEG C of wet-bulb temperature；Air conditioner rated cooling capacity and rated power are checked in from air conditioner operation instructions under nominal condition
Given value；
The worst cold case is the work under the conditions of outdoor air dry-bulb temperature is 29 DEG C, 19 DEG C of outdoor air wet bulb temperature
Condition；Space cooling load under cryogenic refrigeration operating conditionWherein qe-- air conditioner rated cooling capacity, tg-- outdoor air
Dry-bulb temperature；Air conditioner refrigerating capacity qd(29)=1.077qe；Air conditioner power consumption qd(29)=1.077qe；
It is assumed that Air conditioner refrigerating capacity, power consumption and space cooling load are changed linearly with the variation of outdoor dry-bulb temperature, lead to
The air conditioner parameter value for determining air conditioner nominal condition and two operating status points of cryogenic refrigeration operating condition is crossed, the value mould of two o'clock is passed through
It draws up within the scope of 24 DEG C to 35 DEG C of outdoor dry-bulb temperature, Air conditioner refrigerating capacity, space cooling load, air conditioner power consumption are with room
The functional relation of outer dry-bulb temperature variation:
Space cooling load: Lx=0.083qetg,x-1.92qe①；
Air conditioner refrigerating capacity: qx=-0.013qetg,x+1.45qe②；
Air conditioner power consumption: px=0.014petg,x+0.5pe③；
In system saving electricity amount test day, room cooling capacity is supplied by fresh air conditioner, and original air conditioner is not run, empty calculating
When adjusting the theoretical power consumption of device, need to find out the operation power and runing time of air conditioner under same room refrigeration duty；
(1) air conditioner theoretical power (horse-power) pxIt calculates: 3. calculating practical outdoor air dry-bulb temperature t by formulag,xLower air conditioner
Power consumption px, unit W；
(2) it air conditioner theory running time T ' calculating: is 2. calculated by formula in test day outdoor air dry bulb temperature first
Air conditioner theory refrigerating capacity q under the conditions of degreex, unit W；In test day, room cooling capacity is supplied by fresh air conditioner, space cooling load
For Lx, the refrigeration requirement of the testing time T time section inner room of amount of electricity saving is LxT, unit kWh, if mentioned using air conditioner
For LxT, unit are kWh cooling capacity, then air conditioner theory runing timeUnit is h；
(3) air conditioner theory power consumption EkIt calculates: air conditioner air-conditioning theory power consumption Ek=pxT'/1000
In formula: Ek-- the theoretical power consumption of air conditioner air-conditioning, unit kWh；px-- air conditioner air-conditioner power consumption power, unit
For W；The testing time of T-- amount of electricity saving, unit h；tg,x-- dry-bulb temperature outside test day room, unit are DEG C；Lx-- it is indoor cold negative
Lotus, unit W；qe-- air conditioner rated cooling capacity, unit W；qx-- air conditioner refrigeration refrigerating capacity, unit W；Pe-- air-conditioning
Device electric rating, unit W；T': in corresponding outdoor dry-bulb temperature tg,xUnder, for the theoretical fortune for keeping room temperature air conditioner
Row time, unit h.
Wherein, in the step 3, the power consumption measured value of fresh air conditioner is subtracted into air conditioner theory power consumption and obtains project
Amount of electricity saving, expression formula are as follows:
Wherein: Δ E-- project amount of electricity saving, unit kWh；Ef-- the power consumption of fresh air conditioner, unit kWh；Ek-- air-conditioning
The theoretical power consumption of device air-conditioning, unit kWh；tg,x-- dry-bulb temperature outside test day room, unit are DEG C；Pe-- air conditioner is specified
Electrical power, unit W；qe-- air conditioner rated cooling capacity, unit W；The testing time of T-- amount of electricity saving, unit h.
The excellent effect that technical solution provided by the invention has is:
Fresh air conditioner technology is equal especially suitable for the indoor refrigeration duty such as substation, data center computer room greatly especially whole day 24 hours
There is the air-conditioning system of air conditioner refrigerating demand.When calculating the amount of electricity saving of such reducing energy consumption project, improved system power consumption
Data are easier to obtain by actual measurement, but cause project amount of electricity saving more difficult really because lacking the power consumption data before project transformation
Recognize, The present invention gives with the air conditioner theory power consumption under the conditions of identical cooling capacity in fresh air conditioner supply chamber and theoretical run
The determination method of time, power consumption calculates before being transformed to project and the amount of electricity saving identification of project provides calculation method.This hair
It is bright to provide the amount of energy saving identification of such technology for user, Energy Service Company, amount of energy saving audit mechanism, scientifically quantify
The energy-saving effect of this intermediate item further pushes the application of this power-saving technology.
Detailed description of the invention
Fig. 1 is fresh air conditioner energy flow diagram provided by the invention；
Fig. 2 is air conditioner air-conditioning energy flow diagram provided by the invention；
Fig. 3 is point layout schematic diagram provided by the invention；
Fig. 4 is indoor and outdoor air status diagram provided by the invention；
Fig. 5 is the flow chart that fresh air conditioner provided by the invention determines method instead of the amount of electricity saving of air conditioner air-conditioning.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to
Practice them.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment
Only represent possible variation.Unless explicitly requested, otherwise individual component and function are optional, and the sequence operated can be with
Variation.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This hair
The range of bright embodiment includes equivalent obtained by the entire scope of claims and all of claims
Object.Herein, these embodiments of the invention can individually or generally be indicated that this is only with term " invention "
For convenience, and if in fact disclosing the invention more than one, the range for being not meant to automatically limit the application is to appoint
What single invention or inventive concept.
Currently, country has formulated the technology general rule of energy saving measurement and verifying, but it is empty without being replaced for fresh air conditioner
The amount of electricity saving of device air-conditioning is adjusted to determine method, the present invention provides the amount of electricity saving determination side that a kind of fresh air conditioner replaces air conditioner air-conditioning
Method, flow chart is as shown in figure 5, include the following steps:
Project amount of electricity saving subtracts air conditioner air-conditioning power consumption by fresh air conditioner power consumption and obtains.
Wherein the power consumption of fresh air conditioner is the measured value under a certain outdoor dry-bulb temperature；
The power consumption of air conditioner air-conditioning is calculated by simulation.Select air conditioner nominal condition and cryogenic refrigeration operating condition two
A operating status point；
The nominal condition corresponds to the operating condition of air conditioner rated cooling capacity, and 35 DEG C of outdoor air dry-bulb temperature, outdoor air
24 DEG C of wet-bulb temperature；Air conditioner rated cooling capacity and rated power are checked in from air conditioner operation instructions under nominal condition
Given value；
The worst cold case is the work under the conditions of outdoor air dry-bulb temperature is 29 DEG C, 19 DEG C of outdoor air wet bulb temperature
Condition；Space cooling load under cryogenic refrigeration operating conditionWherein qe-- air conditioner rated cooling capacity, tg-- outdoor air
Dry-bulb temperature；Air conditioner refrigerating capacity qd(29)=1.077qe；Air conditioner power consumption qd(29)=1.077qe；
It is assumed that Air conditioner refrigerating capacity, power consumption and space cooling load are changed linearly with the variation of outdoor dry-bulb temperature, lead to
The air conditioner parameter value for determining air conditioner nominal condition and two operating status points of cryogenic refrigeration operating condition is crossed, the value mould of two o'clock is passed through
It draws up within the scope of 24 DEG C to 35 DEG C of outdoor dry-bulb temperature, Air conditioner refrigerating capacity, space cooling load, air conditioner power consumption are with room
The functional relation of outer dry-bulb temperature variation:
Space cooling load: Lx=0.083qetg,x-1.92qe①；
Air conditioner refrigerating capacity: qx=-0.013qetg,x+1.45qe②；
Air conditioner power consumption: px=0.014petg,x+0.5pe③；
In system saving electricity amount test day, room cooling capacity is supplied by fresh air conditioner, and original air conditioner is not run, empty calculating
When adjusting the theoretical power consumption of device, need to find out the operation power and runing time of air conditioner under same room refrigeration duty；
(1) air conditioner theoretical power (horse-power) pxIt calculates: 3. calculating practical outdoor air dry-bulb temperature t by formulag,xLower air conditioner
Power consumption px, unit W；
(2) it air conditioner theory running time T ' calculating: is 2. calculated by formula in test day outdoor air dry bulb temperature first
Air conditioner theory refrigerating capacity q under the conditions of degreex, unit W；In test day, room cooling capacity is supplied by fresh air conditioner, space cooling load
For Lx, the refrigeration requirement of the testing time T time section inner room of amount of electricity saving is LxT, unit kWh, if mentioned using air conditioner
For LxT, unit are kWh cooling capacity, then air conditioner theory runing timeUnit is h；
(3) air conditioner theory power consumption EkIt calculates: air conditioner air-conditioning theory power consumption Ek=pxT'/1000
In formula: Ek-- the theoretical power consumption of air conditioner air-conditioning, unit kWh；px-- air conditioner air-conditioner power consumption power, unit
For W；The testing time of T-- amount of electricity saving, unit h；tg,x-- dry-bulb temperature outside test day room, unit are DEG C；Lx-- it is indoor cold negative
Lotus, unit W；qe-- air conditioner rated cooling capacity, unit W；qx-- air conditioner refrigeration refrigerating capacity, unit W；Pe-- air-conditioning
Device electric rating, unit W；T': in corresponding outdoor dry-bulb temperature tg,xUnder, for the theoretical fortune for keeping room temperature air conditioner
Row time, unit h.
The power consumption measured value of fresh air conditioner is subtracted into air conditioner theory power consumption and obtains project amount of electricity saving, expression formula is such as
Under:
Wherein: Δ E-- project amount of electricity saving, unit kWh；Ef-- the power consumption of fresh air conditioner, unit kWh；Ek-- air-conditioning
The theoretical power consumption of device air-conditioning, unit kWh；tg,x-- dry-bulb temperature outside test day room, unit are DEG C；Pe-- air conditioner is specified
Electrical power, unit W；qe-- air conditioner rated cooling capacity, unit W；The testing time of T-- amount of electricity saving, unit h.
Embodiment
Technical solution of the present invention is described in further detail combined with specific embodiments below.
Fresh air conditioner energy flow diagram and air conditioner air-conditioning energy flow diagram difference are as illustrated in fig. 1 and 2, dry in outdoor air
Ball temperature tg', wet-bulb temperature t'sWhen, fresh air conditioner blower power consumption EfIt (kWh) is measured value, using electric energy meter or portable
Power test equipment measures, and the test mode fan operation time is T, and point layout is as shown in Figure 3.
In outdoor air dry-bulb temperature tg', wet-bulb temperature t'sWhen, the simulation of air conditioner air-conditioning power consumption determines method such as
Under:
It is assumed that air conditioner refrigerating capacity, space cooling load, air conditioner power change and linear change with ambient temperature, pass through
Experiment measures the parameter value of two key temperatures points, that is, can determine household air-conditioner curve.Temperature spot 1 selects in two temperature spots
It selects: 35 DEG C of outdoor dry-bulb temperature (nominal condition)；Temperature spot 2 selects: 29 DEG C of outdoor dry-bulb temperature (worst cold case) is just selected
Temperature spot 1,2 calculates separately space cooling load L, air conditioner refrigerating capacity q, air conditioner power p.
The nominal parameter if original air conditioner dispatches from the factory: rated cooling capacity qe, rated power Pe。
Room air conditioner nominal condition parameter: 35 DEG C of outdoor dry-bulb temperature, 24 DEG C of outdoor wet-bulb temperature, indoor dry-bulb temperature
27 DEG C, 19 DEG C of indoor wet-bulb temperatures；
Room air conditioner cryogenic refrigeration nominal condition parameter: 29 DEG C of outdoor dry-bulb temperature, 19 DEG C of outdoor wet-bulb temperature are indoor
27 DEG C of dry-bulb temperature, 19 DEG C of indoor wet-bulb temperatures, indoor and outdoor air state is as shown in Figure 4.
Temperature spot 1 is specified nominal cooling condition, so when outdoor dry-bulb temperature is 35 DEG C, Air conditioner refrigerating capacity q with
Air-conditioned room refrigeration duty L identical (design value), rated cooling capacity qe, rated power Pe。
Temperature spot 2 is air conditioner cryogenic refrigeration operating condition, under air conditioner cryogenic refrigeration operating condition:
Air-conditioned room refrigeration duty:
In formula:
L-- air-conditioned room refrigeration duty, W；
qe-- air conditioner rated cooling capacity, W；
tg-- outdoor air dry-bulb temperature, DEG C.
Air conditioner refrigerating capacity:
qd(29)=1.077qe
In formula:
qcr(29)-- Air conditioner refrigerating capacity under worst cold case, W；
qe-- air conditioner rated cooling capacity, W.
Air conditioner power consumption:
Pd=0.914Pe
In formula:
Pd-- under worst cold case, air conditioner power consumption, W；
Pe-- power consumption under air conditioner nominal condition, W.
It is calculated by two point form linear equation:
Air conditioner refrigerating capacity qx:
qx=-0.013qetg,x+1.45qe
In formula:
tg,x-- outdoor dry-bulb temperature, DEG C；
qx-- corresponding outdoor dry-bulb temperature tg,xAir conditioner refrigerating capacity, W.
Space cooling load Lx:
Lx=0.083qetg,x-1.92qe
In formula:
Lx-- corresponding outdoor dry-bulb temperature tg,xSpace cooling load, W.
Air conditioner power px:
px=0.014petg,x+0.5pe
In formula:
px-- corresponding outdoor dry-bulb temperature tg,xAir conditioner power, W.
In corresponding outdoor dry-bulb temperature tg,xUnder, for keep room temperature air conditioner theoretical running time T ':
In formula:
T-- fresh air conditioner runing time (i.e. amount of electricity saving testing time section), h.
Note:
Boundary condition ----in space cooling load LxUnder, air conditioner is with qxRefrigerating capacity operation；Calculate day indoor and outdoor temperature
It keeps constant.
The theoretical power consumption E of air conditioner air-conditioningk:
Ek=pxT'
In summary: fresh air conditioner replaces the amount of electricity saving Δ E of air conditioner air-conditioning:
As can be seen that need to only obtain before the outdoor air dry-bulb temperature of test day, transformation air conditioner rated power and specified
4 refrigerating capacity, testing time parameters, can identify project amount of electricity saving.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although referring to above-described embodiment pair
The present invention is described in detail, those of ordinary skill in the art still can to a specific embodiment of the invention into
Row modification perhaps equivalent replacement these without departing from any modification of spirit and scope of the invention or equivalent replacement, applying
Within pending claims of the invention.
Claims (3)
1. a kind of fresh air conditioner replaces the amount of electricity saving of air conditioner air-conditioning to determine method, which is characterized in that the method includes following
Step:
Step 1: determining the power consumption of fresh air conditioner；
Step 2: determining the theoretical power consumption of air conditioner air-conditioning；
Step 3: amount of electricity saving of identifying project；
In the step 2, the theoretical power consumption of air conditioner air-conditioning by with the same outdoor air dry-bulb temperature lower die in step 1
It is quasi- to be calculated, comprising:
Select air conditioner nominal condition and two operating status points of cryogenic refrigeration operating condition；
The nominal condition corresponds to the operating condition of air conditioner rated cooling capacity, and 35 DEG C of outdoor air dry-bulb temperature, outdoor air wet bulb
24 DEG C of temperature；Under nominal condition air conditioner rated cooling capacity and rated power be checked in from air conditioner operation instructions known to
Value；
The cryogenic refrigeration operating condition is the work under the conditions of outdoor air dry-bulb temperature is 29 DEG C, 19 DEG C of outdoor air wet bulb temperature
Condition；Space cooling load under cryogenic refrigeration operating conditionWherein qe-- air conditioner rated cooling capacity, tg-- outdoor air
Dry-bulb temperature；Air conditioner refrigerating capacity qd(29)=1.077qe；Air conditioner power consumption qd(29)'=1.077qe；
The air conditioner parameter value for determining air conditioner nominal condition Yu two operating status points of cryogenic refrigeration operating condition is run by two
The air conditioner parameter value modulo of state point is drawn up within the scope of 24 DEG C to 35 DEG C of outdoor dry-bulb temperature, and Air conditioner refrigerating capacity, room are cold
The functional relation that load, air conditioner power consumption change with outdoor dry-bulb temperature:
Space cooling load: Lx=0.083qetg,x-1.92qe①；
Air conditioner refrigerating capacity: qx=-0.013qetg,x+1.45qe②；
Air conditioner power consumption: px=0.014petg,x+0.5pe③；
In system saving electricity amount test day, room cooling capacity is supplied by fresh air conditioner, and original air conditioner is not run, and is calculating air conditioner
Theoretical power consumption when, need to find out the operation power and runing time of air conditioner under same room refrigeration duty；
(1) air conditioner theoretical power (horse-power) pxIt calculates: 3. calculating practical outdoor air dry-bulb temperature t by formulag,xLower air conditioner power consumption
Power px, unit W；
(2) it air conditioner theory running time T ' calculating: is 2. calculated by formula in test day outdoor air dry-bulb temperature item first
Air conditioner theory refrigerating capacity q under partx, unit W；In test day, room cooling capacity is supplied by fresh air conditioner, space cooling load Lx,
The refrigeration requirement of the testing time T time section inner room of amount of electricity saving is LxT, unit kWh, if providing L using air conditionerxT,
Unit is kWh cooling capacity, then air conditioner theory runing timeUnit is h；
(3) air conditioner theory power consumption EkIt calculates: air conditioner air-conditioning theory power consumption Ek=pxT'/1000
In formula: Ek-- the theoretical power consumption of air conditioner air-conditioning, unit kWh；px-- air conditioner air-conditioner power consumption power, unit W；
The testing time of T-- amount of electricity saving, unit h；tg,x-- dry-bulb temperature outside test day room, unit are DEG C；Lx-- indoor refrigeration duty,
Unit is W；qe-- air conditioner rated cooling capacity, unit W；qx-- air conditioner refrigeration refrigerating capacity, unit W；Pe-- air conditioner volume
Determine electrical power, unit W；T': in corresponding outdoor dry-bulb temperature tg,xUnder, when to keep the theory of room temperature air conditioner to run
Between, unit h.
2. amount of electricity saving as described in claim 1 determines method, which is characterized in that in the step 1, the power consumption of fresh air conditioner
For measured value under the conditions of test day outdoor air dry-bulb temperature.
3. amount of electricity saving as described in claim 1 determines method, which is characterized in that in the step 3, by the power consumption of fresh air conditioner
Amount measured value subtracts air conditioner theory power consumption and obtains project amount of electricity saving, and expression formula is as follows:
Wherein: Δ E-- project amount of electricity saving, unit kWh；Ef-- the power consumption of fresh air conditioner, unit kWh；Ek-- air conditioner is empty
The theoretical power consumption of tune, unit kWh；tg,x-- dry-bulb temperature outside test day room, unit are DEG C；Pe-- the specified electric work of air conditioner
Rate, unit W；qe-- air conditioner rated cooling capacity, unit W；The testing time of T-- amount of electricity saving, unit h.
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| CN109340997A (en) * | 2017-07-31 | 2019-02-15 | 广东美的制冷设备有限公司 | Air conditioner power consumption weight testing method, device and computer readable storage medium |
| CN107590610A (en) * | 2017-09-20 | 2018-01-16 | 四川长虹电器股份有限公司 | Air-conditioning energy contract mangement project amount of energy saving appraisal procedure based on linear regression |
| CN109116775B (en) * | 2018-08-07 | 2021-05-04 | 珠海格力电器股份有限公司 | Energy consumption management method and device for electrical equipment, storage medium and electrical equipment |
| CN110873360B (en) * | 2018-09-03 | 2021-12-28 | 国网信息通信产业集团有限公司 | Energy saving amount determining method and device for heating energy saving reconstruction project |
| CN112082784B (en) * | 2019-06-13 | 2023-01-10 | 中国信息通信研究院 | Method for testing energy utilization efficiency energy efficiency factor of air conditioner product in data center |
| CN115095957A (en) * | 2022-07-06 | 2022-09-23 | 贵州汇通华城股份有限公司 | Method and system for metering electric quantity of air conditioner under different working conditions |
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| JPH1026426A (en) * | 1996-07-09 | 1998-01-27 | Nasu Corp:Kk | Air conditioner |
| CN101968242A (en) * | 2009-07-28 | 2011-02-09 | 李代繁 | Energy-saving environmental-friendly heat-supply brand new wind air conditioner |
| CN201992757U (en) * | 2010-12-31 | 2011-09-28 | 浙江为民能源科技有限公司 | Intelligent energy-saving fresh air ventilating system for communications equipment room |
| CN102384556A (en) * | 2011-10-21 | 2012-03-21 | 重庆大学 | Ventilation system of air conditioning room |
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