CN1322946A - Simple 'wet' measuring facility and method for cool and heat producing amount of air conditioner - Google Patents
Simple 'wet' measuring facility and method for cool and heat producing amount of air conditioner Download PDFInfo
- Publication number
- CN1322946A CN1322946A CN01121361A CN01121361A CN1322946A CN 1322946 A CN1322946 A CN 1322946A CN 01121361 A CN01121361 A CN 01121361A CN 01121361 A CN01121361 A CN 01121361A CN 1322946 A CN1322946 A CN 1322946A
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- space
- water
- simulation
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The simple "wet" measuring facility and method may be equivalent with National Standard requirement and is measures and calculates the cool and heat producing amount of air conditioner to be measured by means of drizzle-like showering method to perform the heat exchange between water and cold or hot air blown to room by the air conditioner to be measured and measuring the flow rate and average temperature change of water from pipe with small cross section area. It has the features of simple and cheap facility, simple and practical operation and high measurement accuracy, and may be used in basic technological supervision department and small and middle scale air conditioner producer.
Description
The present invention relates to the measuring technology of air conditioner.
At present, China implements according to " A1: room type calorimeter method " and " A2: air enthalpy method " two kinds of methods among the GB GB/T7725-1996 (room air conditioner-1997-01-01 implements) the test of room air conditioner refrigeration and heating capacity.These two kinds of methods are general in the world direct quantitative methods of testing, they are that the on-the-spot working environment that uses of simulation air conditioner designs fully, particularly air conditioner also is included in wherein (although quantity is little) fully to this key element of can not ignore of humidity effect (generation of condensate water will consume refrigerating capacity) of air-conditioned room, this has just brought suitable trouble to test, but in order to ensure the tightness and the reliability of testing, with and the precision of method of testing, have to test facilities are proposed very high requirement, like this, the assembly price of test facilities nature is just considerable.This all is not light burden concerning common air conditioner manufacturer and technical supervising unit of local basic unit.
Purpose of the present invention:, propose a kind of and GB and require to have equivalent relation and similar method of testing and the facility thereof that can be simplified significantly more again by comparison for addressing the above problem.
Key of the present invention: by showering heat interchange facility and the method thereof as the drizzle, again by from the very little water pipe of sectional area (the instrumentation precision is higher) measure the flow and the temperature variation of WATER AS FLOW MEDIUM, calculate the refrigerating capacity and the heating capacity of tested air conditioner.
The present invention is achieved in that A. test facilities of the present invention, which comprises at least:
A. peripheral two adjacent test spaces that are surrounded by insulated case: the space, indoor of simulation and the space, outside of simulation.
B. be located at trickle shower nozzle and water-receiving tray in the space, indoor of simulation, and be located at the air conditioner in the space, outside of simulation.B. method of testing of the present invention (step):
A. tested air conditioner start; Open water valve and make the downward trickle of trickle shower nozzle; The air conditioner start.
B. regulate discharge Q by water valve, by setting the adjusting of air conditioner actuator temperature, the temperature of the point for measuring temperature in the point for measuring temperature in space, indoor and space, outside is reached respectively and be stabilized in: T1 during refrigeration capacity test (indoor) and T2 (outside); The perhaps T3 (indoor) in heating capacity when test and above the T4 (outside);--T1, T2, T3, T4 can require to determine with reference to GB, also can and decide with reference to enterprise's mark requirement.
C. measure the into video data of water point for measuring temperature and draining point for measuring temperature: t1 during refrigeration and t2; Or t3 and t4 when heating, and the demonstration flow of their pairing aqueous medium flowmeters: the Q1 during refrigeration; Or the Q2 when heating, carry out the reckoning of tested air conditioner refrigerating capacity or heating capacity.
The correction factor of test data of the present invention, can pass through: allow the standard model machine measure data in actual measurement process of the present invention, the normal data similar with the standard model machine after the two compares processing, just can obtain.
In addition: state preferably frequency conversion type of air conditioner, or contain other any cold and warm air-conditioner of frequency-changeable compressor.
The present invention's characteristics compared with the prior art:
Adopt the metering medium of the bigger water of thermal capacity as thermal change, in the instrumentation technical finesse, the air that specific heat capacity is very little is much easier as the metering medium of thermal change, that is: the measuring on the precision of average discharge and medial temperature, aqueous medium is higher than air dielectric;--under the constant situation of fluid mass (weight), the average discharge and its medial temperature that measure water from the very little water pipe of sectional area change, and than measure homogeneous data from the very big tracheae of sectional area, easily and much accurate.
Fig. 1 has illustrated the facility structure of one embodiment of the present of invention.
The space, indoor of R1-simulation; The outdoor survey space of R2-simulation; P-trickle shower nozzle; The D-water-receiving tray; The B-tested air conditioner; K-changes in temperature transducer air conditioning; The off-premises station of F-transducer air conditioning; The L-connecting tube; 1-draining point for measuring temperature; Space, 2-indoor point for measuring temperature; The 3-point for measuring temperature of intaking; The 4-water valve; The 5-flowmeter; The 6-insulated case; Space, 7-outside point for measuring temperature; 8-cold water delivery pipe.
Outsourcing insulated case of the present invention " 6 ", and adopt water in the space, indoor " R1 " of simulation, to use as the instrumentation medium, the WATER AS FLOW MEDIUM that enters sprays downwards from trickle shower nozzle " P ", then by water-receiving tray " D " with its collection and discharging.
During test:
The space, indoor " R1 " of simulation has been full of " drizzle water " from top to bottom, and the wet aqueous vapor that is generated by its.Ask the point for measuring temperature medial temperature that " 2 " record by the indoor sky, control by the size of regulating discharge Q by water valve " 4 " fully.The final balance test temperature of the present invention's regulation in the space, indoor " R1 " of simulation (being shown by point for measuring temperature " 2 ") and the temperature difference that enters between the WATER AS FLOW MEDIUM temperature (by point for measuring temperature " 3 " demonstration) in this space " R1 " should be too not little.
In the space, outside " R2 " of simulation, by the medial temperature that point for measuring temperature " 7 " shows, be to set by the temperature of fine setting transducer air conditioning " K " self to control, the power of transducer air conditioning " K " should be greater than tested air conditioner " B ".
When testing the refrigerating capacity of tested air conditioner " B ":
Tested air conditioner " B " start, the refrigeration evaporator temperature of this moment is far below the temperature of WATER AS FLOW MEDIUM influenced by ambient temperature.
By the adjusting (temperature in the big more then space of discharge Q1 " R1 " is high more) of water valve " 4 ", point for measuring temperature " 2 " temperature displayed in the space, indoor " R1 " of simulation is reached and be stabilized in desired T1 (27C); The condensed waste heat air of tested air conditioner " B " discharging is offset in cooling condition work by transducer air conditioning " K " again, point for measuring temperature " 7 " temperature displayed in the space, outside " R2 " of simulation is reached and is stabilized in desired T2 (35C).
At this moment, the cold air that blows out with tested air conditioner " B " in the space, indoor " R1 " of simulation of the high-temperature medium water as " drizzle water " carries out heat interchange and the water temperature of self is reduced; The bottom of the condensate water that tested air conditioner " B " produces in the space, indoor " R1 " of cold water delivery pipe " 8 " inflow simulation.
--the water source of this condensate water comes from the gasifying medium water in the space, indoor " R1 " that enters simulation, wherein active latent heat heating power problem, that is: the heat of gasification of WATER AS FLOW MEDIUM and heat of condensation, will be fully on quantitatively can be in same heating power system be logical poor efficiency mutually.Therefore, in the method for the invention, condensate water is a negligible problem.
Measure the temperature difference between the water temperature t2 of the temperature t 1 of water point for measuring temperature " 3 " into and draining point for measuring temperature " 1 ", long-pending with the flow Q1 of flowmeter " 5 " display medium water, be exactly the refrigerating capacity of tested air conditioner " B ".
When testing the heating capacity of tested air conditioner " B ":
Tested air conditioner " B " start, this moment heat the temperature that condensing temperature is higher than WATER AS FLOW MEDIUM influenced by ambient temperature.
By the adjusting (temperature in the big more then space of discharge Q2 " R1 " is low more) of water valve " 4 ", point for measuring temperature " 2 " temperature displayed in the space, indoor " R1 " of simulation is reached and be stabilized in desired T3 (45C); The useless cold air of evaporation of tested air conditioner " B " discharging is offset in heating condition work by transducer air conditioning " K " again, point for measuring temperature " 7 " temperature displayed in the space, outside " R2 " of simulation is reached and is stabilized in desired T4 (0C).
At this moment, the hot gas that blows out with tested air conditioner " B " in the space, indoor " R1 " of simulation of the high-temperature medium water as " drizzle water " carries out heat interchange and the water temperature of self is raise.
Measure the temperature difference between the water temperature t4 of the temperature t 3 of water point for measuring temperature " 3 " into and draining point for measuring temperature " 1 ", long-pending with the flow Q2 of flowmeter " 5 " display medium water, be exactly the heating capacity of tested air conditioner " B ".
Facility of the present invention is owing to adopt water as the instrumentation medium, so its overall volume can design lessly, can consider usually to get final product about several cubic meters, even can make movable-type.
Claims (3)
1. simple type air conditioner refrigerated medium heat " wet type " test facilities and method thereof, A. " wet type " test facilities which comprises at least:
A. the periphery is surrounded by two adjacent test spaces of insulated case " 6 ": the space, indoor " R1 " and the mould of simulation
The space, outside " R2 " of intending;
B. be located at trickle shower nozzle " P " and water-receiving tray " D " in the space, indoor " R1 " of simulation; And establish
Air conditioner " K " in the space, outside " R2 " of simulation;
2. simple type air conditioner refrigerated medium heat " dry type " test facilities and method thereof, A. " wet type " test facilities which comprises at least:
A. the periphery is surrounded by two adjacent test spaces of insulated case " 6 ": the space, indoor " R1 " and the mould of simulation
The space, outside " R2 " of intending;
B. be located at trickle shower nozzle " P " and water-receiving tray " D " in the space, indoor " R1 " of simulation, and establish
Air conditioner " K " in the space, outside " R2 " of simulation; B. " wet type " method of testing (step):
A. tested air conditioner " B " start; Open water valve " 4 " and make trickle shower nozzle " P " trickle downwards; Air conditioner
Device " K " start;
B. regulate discharge Q by water valve " 4 "; And the design temperature adjusting of passing through air conditioner " K ",
The temperature of point for measuring temperature " 2 " and point for measuring temperature " 7 " is reached respectively and be stabilized in: T1 and T2; Or T3
Above T4;
C. measure the into video data of water point for measuring temperature " 3 " and draining point for measuring temperature " 1 ": t1 and t2; Perhaps t3
And t4, and the demonstration flow of their pairing flowmeters " 5 ": Q1 or Q2; Carry out tested sky
Transfer the reckoning of device " B " refrigerating capacity or heating capacity;
3. according to claim 1 and 2 described a kind of simple type air conditioner refrigerated medium heat " dry type " test facilities and methods thereof, it is characterized in that: described air conditioner " K " is a frequency conversion type; Or contain other any cold and warm air-conditioner of frequency-changeable compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011213612A CN1140725C (en) | 2001-06-03 | 2001-06-03 | Simple 'wet' measuring facility and method for cool and heat producing amount of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011213612A CN1140725C (en) | 2001-06-03 | 2001-06-03 | Simple 'wet' measuring facility and method for cool and heat producing amount of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1322946A true CN1322946A (en) | 2001-11-21 |
| CN1140725C CN1140725C (en) | 2004-03-03 |
Family
ID=4664444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011213612A Expired - Fee Related CN1140725C (en) | 2001-06-03 | 2001-06-03 | Simple 'wet' measuring facility and method for cool and heat producing amount of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1140725C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333245C (en) * | 2004-03-22 | 2007-08-22 | 中国计量学院 | Single-chamber simple type testing installation and its method for refrigerating output and heating quantity of air conditioner |
-
2001
- 2001-06-03 CN CNB011213612A patent/CN1140725C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333245C (en) * | 2004-03-22 | 2007-08-22 | 中国计量学院 | Single-chamber simple type testing installation and its method for refrigerating output and heating quantity of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1140725C (en) | 2004-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU738797B2 (en) | A digital controller for a cooling and heating plant having near-optimal global set point control strategy | |
| MARTíNEZ et al. | Experimental study on energy performance of a split air-conditioner by using variable thickness evaporative cooling pads coupled to the condenser | |
| Wang et al. | The novel use of phase change materials in refrigeration plant. Part 1: Experimental investigation | |
| CN106839340A (en) | A kind of air conditioner refrigerating measuring method, device and air-conditioner | |
| CN201327427Y (en) | Calibrating device for temperature and moisture measurement | |
| CN109765797A (en) | A kind of air conditioner energy saving analogue system | |
| Atmaca et al. | Performance testing and optimization of a split-type air conditioner with evaporatively-cooled condenser | |
| Liu et al. | Developing condensing-frosting performance maps for a variable speed air source heat pump (ASHP) for frosting suppression | |
| Harms et al. | Accurate charge inventory modeling for unitary air conditioners | |
| CN204943994U (en) | The kind of refrigeration cycle oil content of refrigeration plant and the measurement mechanism of efficiency | |
| CN103257051B (en) | Test board of calorimeter of air condition compressor | |
| Kirby et al. | Effect of airflow nonuniformity on evaporator performance/Discussion | |
| CN1322946A (en) | Simple 'wet' measuring facility and method for cool and heat producing amount of air conditioner | |
| Tang et al. | Experimental study on refrigerant maldistribution in a fin-and-tube evaporator for a direct expansion air-conditioning system | |
| Rodriguez et al. | Effect of reduced evaporator airflow on the high temperature performance of air conditioners | |
| CN201716199U (en) | Detection device of heating radiators | |
| Harms | Charge inventory system modeling and validation for unitary air conditioners | |
| Tang et al. | Performance investigation on a precision air conditioning system with a condensation heat recovery unit under varying operating conditions | |
| Guo et al. | A testing and HVAC design methodology for air-to-air heat pipe heat exchangers | |
| Pizzatto et al. | An empirical model of a split-type inverter air conditioner for building energy simulation | |
| Cascetta et al. | A metrological analysis of the in-situ evaluation of the performance of a gas engine-driven heat pump | |
| Rigola et al. | Advanced numerical simulation model of hermetic reciprocating compressors | |
| CN207280512U (en) | A kind of Dewar component insulating characteristics comprehensive measurement device | |
| Surawattanawan et al. | Mathematical modeling and optimum design for capillary tubes in R-410A Air Conditioner | |
| CN206488933U (en) | Water enthalpy method refrigerating capacity source device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |