CN107131978A - The caliberating device and scaling method of commercial circulation heat pump water heater test device - Google Patents
The caliberating device and scaling method of commercial circulation heat pump water heater test device Download PDFInfo
- Publication number
- CN107131978A CN107131978A CN201710442681.0A CN201710442681A CN107131978A CN 107131978 A CN107131978 A CN 107131978A CN 201710442681 A CN201710442681 A CN 201710442681A CN 107131978 A CN107131978 A CN 107131978A
- Authority
- CN
- China
- Prior art keywords
- temperature
- water
- caliberating device
- test
- heating
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K19/00—Testing or calibrating calorimeters
Abstract
The present invention relates to a kind of caliberating device and scaling method of commercial circulation heat pump water heater test device, caliberating device includes：Demarcate water tank, firing equipment, temperature collect module, power test module and control module；Scaling method comprises the following steps：The hot coefficient of leakage, the efficiency of heating surface of firing equipment of the caliberating device are obtained first, then tested machine is replaced to be connected in test device caliberating device, carry out testing the heating capacity for obtaining caliberating device under the circulating water flow of default environment temperature and the water pump of default test device, and further obtain the leaking heat of test device.Compared with prior art, the beneficial effect for the caliberating device that the present invention is provided is：1) being capable of the test calibration device leaking heat of itself；2) actual condition operation curve can be fitted；3) adjustable heating power；The scaling method also can exactly, dynamically demarcate the leaking heat of existing method of testing/test device, so that laboratory can test heat pump heating capacity exactly.
Description
Technical field
The present invention relates to a kind of caliberating device and scaling method of commercial circulation heat pump water heater test device, it is mainly used in
The demarcation of commercial circulation heat pump water heater test device, belongs to air-conditioning and technical field of heat pumps.
Background technology
Teat pump boiler is similar with air-conditioning, and simply heat transfer medium is the heat acquisition heat of water, absorbent refrigeration system condenser
Water.The test philosophy of Teat pump boiler is to heat water and heat time to calculate heat pump by the tested Teat pump boiler of test
The heating capacity of water heater.Teat pump boiler is divided into four classes：Heated type, commercial circulating heating type, Domestic circulating heated type and
Family expenses static state heated type.The method of testing of commercial circulation heat pump water heater is with mark as defined in current standard GB/T21362-2008
Quasi- water tank analog subscriber water tank connects 8 platinum of arrangement in standard water tank and tested machine, testing standard water tank by pipeline, water pump
Resistance mean temperature is as test water temperature, because the temperature is measured in tested machine import and export, and standard is required will be
Amount of stored heat on the basis of measured heating capacity plus leaking heat and water tank is heated as the final of commercial circulation heat pump water heater
Ability.Therefore generally for the heating capacity for more accurately obtaining heat pump water-heating machine, it is necessary to (also known as be checked and filled with caliberating device
Put, calibration equipment) test device is demarcated, to obtain the leaking heat of test device.
The scaling method principle of commercial circulation heat pump water heater test device as defined in current standard GB/T 21362-2008
As shown in figure 1, the leaking heat in order to check test device, replaces tested machine to be connected in pipeline with caliberating device 12 and is surveyed
Examination, 8 be water pump, and 10 be standard water tank, and 13 be thermometer；Caliberating device is connected with standard water tank, water pump by pipeline.According to
The regulation of above-mentioned standard, caliberating device 1 can use electric heater or other heat-exchanger rigs.
Existing caliberating device is made up of the electric heater with insulation, and its principle is to replace tested machine to enter caliberating device
Row test, i.e. Teat pump boiler can produce heat, and the heater of caliberating device can also produce heat, and the heat of generation all can use
In heating water；Caliberating device is replaced into tested machine connecting test device, will by the heating capacity of test device test calibration device
The heating capacity that the heater input power and test device of caliberating device are tested is compared, and both differences are exactly to demarcate
The leaking heat of the test device arrived.Then followed according to method of testing test commercialization as defined in current standard GB/T 21362-2008
The performance of ring Teat pump boiler, with following formula, by the leaking heat (Q i.e. in formula of above-mentioned test device obtained by calibratingl) input
Into formula, final heating capacity is obtained.
Qh=C × G × (t2-t1)/(3600×H×1000)+Qs+Ql
In formula：
Qh--- Teat pump boiler heating capacity, unit：kW；
C --- the specific heat of water, unit under mean temperature：J/(kg·℃)；
The quality of G --- healed water, unit：kg；
t1--- initial coolant-temperature gage, unit：℃；
t2--- terminate coolant-temperature gage, unit：℃；
H --- the heat time, from moment on-test to the time at off-test moment, unit：h；
Qs--- the accumulation of heat of standard water tank and pipeline, unit：kW；
Ql--- the leakage heat of standard water tank and pipeline, unit：kW.
The power of existing caliberating device is non-adjustable, while caliberating device is without itself leaking heat calibrating function, itself leakage heat
Amount is uncertain, the efficiency of heating surface of conducting self-heating device is unknown, so test value is inaccurate.In addition, current caliberating device is simpler
It is single, it is only capable of the leaking heat demarcated under test device current environmental temperature.And during actual test, because the ability for being tested machine is
Change, so when testing the tested machine of different abilities, the calibration result of the caliberating device of firm power has deviation.
Itself leaking heat of caliberating device and the efficiency of heating surface of its heater are unknown, and working condition, current during test
It is different when the parameters such as amount are from demarcation, cause calibration value and actual leaking heat not consistent.
The content of the invention
In view of the shortcomings of the prior art, an object of the present invention is to provide a kind of commercial circulation heat pump water heater test dress
The caliberating device put, the device can exactly, dynamically demarcate the leaking heat of existing method of testing/test device, so that real
Heat pump heating capacity can be tested exactly by testing room.
To achieve the above object, the present invention uses following technical scheme：
A kind of caliberating device of commercial circulation heat pump water heater test device, including：Demarcate water tank, firing equipment, temperature
Acquisition module, power test module and control module, wherein,
The demarcation water tank includes body of thermal insulating box and multiple survey water temperature elements, and the body of thermal insulating box is used to accommodate water, described
Surveying water temperature element is used to measure the water temperature in the body of thermal insulating box；
The firing equipment is used to heat the water that the body of thermal insulating box is accommodated, and the heating member of the firing equipment is arranged in institute
State inside body of thermal insulating box；
The temperature collect module connects with the control module, the survey water temperature element and survey environment temperature element respectively
Connect, for gathering the temperature that the temperature that measures of survey water temperature element and the survey environment temperature element are measured in real time, and by number
According to being transferred to the control module；The survey environment temperature element is used for measuring environment temperature；
The power test module is connected with the control module and the firing equipment respectively, for described in real-time testing
The actual power of firing equipment, and transfer data to the control module；
The control module is used for the hot COEFFICIENT K of leakage that the caliberating device is obtained before being demarcated to test deviceleak
With the efficiency of heating surface η of the firing equipment, the heating capacity of caliberating device described in mark timing acquisition is being carried out to the test device
Q0, and the hot COEFFICIENT K of leakage of the caliberating device according to acquisitionleak, the firing equipment efficiency of heating surface η, the caliberating device
Heating capacity Q0With the amount of stored heat Q of test devicesObtain the leaking heat Q of the test device1。
In above-mentioned caliberating device, a kind of preferred embodiment, the leaking heat Q of the test device are used as1=PInput×η-
Qleak-Q0-Qs；
In formula：PInputSpecified heating capacity for the firing equipment using the commercial circulation heat pump water heater is used as work
Setting value, demarcation when from moment on-test to off-test moment in a period of, the average value of the firing equipment power,
Unit is kW；
QleakDuring for demarcation in a period of moment on-test to the off-test moment instantaneous leaking heat
QleakiIntegrating value, unit is kW；
Q0For the heating capacity of the caliberating device, unit is kW；
QsFor the amount of stored heat of the test device, unit is kW.
In above-mentioned caliberating device, as a kind of preferred embodiment, the heating member is electric heater, the firing equipment
Also include：Power adjusting control device；The electric heater is the adjustable multigroup electric heater of input power；The power adjusting
Control device is connected with the control module and the electric heater, for adjusting the electricity according to the instruction of the control module
The total power input of heater is until reach the setting value of the electric heater work.It is highly preferred that the firing equipment is also wrapped
Include：Some on-off systems, the on-off system is connected with the control module and the electric heater, for according to the control
The break-make of the instruction control electric heater heating of module controls the group number of the electric heater work to realize.
In above-mentioned caliberating device, as a kind of preferred embodiment, the quantity of the on-off system and the electric heater
Group number it is consistent, each on-off system accordingly controls whether one group of electric heater connects heating.
In above-mentioned caliberating device, as a kind of preferred embodiment, the heating member is electric heater, the firing equipment
Also include：Some on-off systems, the on-off system is connected with the control module and the electric heater, for according to described
One group or several groups of electric heaters are connected in the instruction of control module makes the total power input of the electric heater reach the electrical heating
The setting value of device work.
In above-mentioned caliberating device, as a kind of preferred embodiment, the control module is always according to recorded same
The leakage heat of the corresponding test device of circulating water flow at a temperature of different circulating water flows and varying environment under environment temperature
Data are measured, the relation curve between the leaking heat of test device and environment temperature and circulating water flow is fitted；According to current ring
Border temperature and circulating water flow and the current environment temperature of relation curve acquisition and the corresponding test dress of circulating water flow
The leaking heat put.
The second object of the present invention is to provide a kind of scaling method of commercial circulation heat pump water heater test device, used
The step of above-mentioned caliberating device, scaling method, includes：
Step before demarcation, obtains the hot COEFFICIENT K of leakage of the caliberating deviceleak, obtain the firing equipment of the caliberating device
Efficiency of heating surface η, the caliberating device is the device demarcated to the commercial circulation heat pump water heater test device；
Timed step is marked, the caliberating device is connected to the commercial circulation instead of the commercial circulation heat pump water heater
In Teat pump boiler test device, in the water pump of default environment temperature and the default commercial circulation heat pump water heater test device
Circulating water flow under, the heating capacity of the caliberating device is tested, then according to the 3rd formula obtain it is described demarcation fill
The heating capacity put, the 3rd formula is Q0=C × G × (t2-t1)/(3600 × H × 1000), in formula：Q0For heating for caliberating device
Amount, unit is kW；C be mean temperature under water specific heat, unit be J/ (kg DEG C), the mean temperature refer to initial coolant-temperature gage and
Terminate the mean temperature of coolant-temperature gage；G is the quality of healed water, and unit is kg；t1For initial coolant-temperature gage, unit for DEG C；t2For end
Sealing temperature, unit for DEG C；H is the heat time, and from moment on-test to the time at off-test moment, unit is h；And root
According to the hot COEFFICIENT K of the leakage of the caliberating device of acquisitionleak, firing equipment efficiency of heating surface η, the heating capacity Q of caliberating device0With test dress
The amount of stored heat Q putsObtain the leaking heat Q of test device1, the leaking heat Q of the test device1The input power of=caliberating device
PInputThe leaking heat Q of × efficiency of heating surface η-caliberating deviceleakThe heating capacity Q of-caliberating device0The amount of stored heat Q of-test devices。
In above-mentioned scaling method, as a kind of preferred embodiment, the heating member of the firing equipment is electric heater,
Before the demarcation in step, tested using 24 hours hot coefficients of leakage of the intrinsic energy consuming process to the caliberating device；According to
First formula obtains the hot coefficient of leakage of the caliberating device, and first formula is：Kleak=E/ [S1·(T-Tam)], wherein,
KleakTo leak hot coefficient, unit：W/K；E is the power consumption of run time section, unit：Wh；S1For using 24 hours intrinsic energy consumption sides
Method tests run time during the hot coefficient of leakage of the caliberating device, unit：h；T is transporting for the demarcation water tank of the caliberating device
The average temperature of row period, unit：℃；TamFor the average ambient temperature of run time section, unit：℃.
In above-mentioned scaling method, as a kind of preferred embodiment, before the demarcation in step, to the caliberating device
Demarcation water tank in injection actual volume setting initial temperature water, using the caliberating device electric heater to water progress
Heating, makes water temperature rise to setting end temp, the electric heater is stopped；The caliberating device is obtained according to the second formula
Electric heater the efficiency of heating surface, second formula be η=V/ (θA-θB)/(E2× 860) × 100%；Wherein, η is heating
Efficiency, unit：100%；V is the demarcation water tank actual volume of the caliberating device, unit：L；θAStop for the electric heater
Water temperature measured value during work, unit：℃；θBWater temperature measured value when being started working for the electric heater, unit：℃；E2For
Heating power consumption by water as setting initial heating temperature to needed for setting end temp, unit is kWh.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) being capable of the test calibration device leaking heat of itself.Do not define how to test and determine in a standard at present
The leaking heat of caliberating device in itself, but heater has certain heat loss in itself, insulation material also has certain leakage heat, if
If caliberating device is unable to automatic Calibration in itself, the leaking heat result measured is inaccurate.The present invention refers to the electric heater thermal efficiency
Method of testing, temperature measuring point is arranged inside caliberating device, can testing heater automatically the thermal efficiency, while being filled according to demarcation
The leaking heat of caliberating device itself can be calculated automatically by putting the water temperature and outside environment temperature of inside.
(2) actual condition operation curve can be fitted.With the difference and the difference of flow of environment temperature, Teat pump boiler
The leaking heat of test device is different.In the laboratory for carrying out Teat pump boiler test at present, there is its water tank of the laboratory of nearly half
Outdoor, i.e. environment temperature is located at any time to change.Verified if only at a temperature of some specific environment, obtain device
Leaking heat, then when environment temperature changes, the check value will be inaccurate.Other operational factors are also such.The present invention's
Caliberating device can be according to test data automatic Fitting curve, in actual motion from now on, can be according to the actual work tested
Condition calculates the leaking heat of Teat pump boiler test device under current working automatically.
(3) adjustable heating power.The power of the firing equipment of current caliberating device be it is fixed, it is non-adjustable, and be tested
The ability of Teat pump boiler is change, and when the power of caliberating device is mismatched with tested function power, test result is forbidden
Really.The heating power of the firing equipment of the caliberating device of the present invention is adjustable, improves the accuracy of test result.
Brief description of the drawings
Fig. 1 is the scaling method schematic diagram of Teat pump boiler test device as defined in GB/T 21362-2008；
Fig. 2 be the preferred embodiment of the present invention in commercial circulation heat pump water heater test device caliberating device schematic diagram；
Fig. 3 is the operation curve of the fitting actual condition of the preferred embodiment of the present invention.
Wherein, 1- demarcates water tank, and 2- surveys water temperature element, 3- electric heaters, 4- power adjusting control devices, 5- temperature acquisitions
Module, 6- on-off systems, 7- control modules, 8- water pumps, 9- surveys environment temperature element, 10- standard water tanks, 11- power test moulds
Block, 12- caliberating devices, 13- thermometers.
Embodiment
Technical scheme is described in further detail by embodiment below in conjunction with accompanying drawing.
The invention provides a kind of caliberating device of commercial circulation heat pump water heater test device, referring to Fig. 2, caliberating device
12 include：Water tank 1, firing equipment, temperature collect module 5, power test module 11 and control module 7 are demarcated, below to the above
Part is illustrated one by one.For convenience, hereinafter by commercial circulation heat pump water heater test device with test device letter
Claim, commercial circulation heat pump water heater is referred to as illustrated with tested machine.
Demarcation water tank 1 includes：Body of thermal insulating box and multiple survey water temperature elements 2.Body of thermal insulating box is used to accommodate water, enters as to water
The place that row heats.Surveying water temperature element 2 is used to measure the water temperature in body of thermal insulating box, and it can be the conventional member such as RTD
Part.In order to more accurately determine the water temperature in body of thermal insulating box, surveying water temperature element 2 should be arranged in body of thermal insulating box as homogeneously as possible
Portion.In an embodiment of the present invention, RTD is evenly arranged along the height h of body of thermal insulating box, specifically, RTD is along exhausted
Tri- horizontal planes of 1/4h, 1/2h and 3/4h arrangement of hot tank body, the inner homogeneous of each horizontal plane arranges 4 RTDs, totally 12
Root RTD, the average value i.e. water temperature for the temperature that 12 RTDs are measured.
The heating member of firing equipment is arranged in inside body of thermal insulating box, the water for heating body of thermal insulating box receiving, can be used for
The static water of heating, the quantitative water that such as heating body of thermal insulating box is accommodated can be also used for the water of heating flowing, and such as circulating water enters
In body of thermal insulating box, it is heated after, then from body of thermal insulating box discharge.Firing equipment preferably includes electric heater 3, and it, which is used, directly adds
Hot mode, in other examples, firing equipment can include heat transmission equipment, and it uses indirect heating manner.
Temperature collect module 5 is connected with control module 7, survey water temperature element 2 and survey environment temperature element 9 respectively, for reality
When collection survey the temperature and survey the temperature that environment temperature element 9 is measured that water temperature element 2 measures, and transfer data to control module
7.Surveying environment temperature element 9 is used for measuring environment temperature.
Power test module 11 respectively with control module 7 and firing equipment (power supply electricity that such as specifically can be with electric heater 3
Source connects RST, referring to Fig. 2) connection, for the actual power of real-time testing firing equipment, and transfer data to control module
7。
Control module 7 is used for before being demarcated to test device the hot COEFFICIENT K of leakage for obtaining caliberating deviceleakSet with heating
Standby efficiency of heating surface η, to test device mark the heating capacity Q of timing acquisition caliberating device0, and filled according to the demarcation of acquisition
The hot COEFFICIENT K of leakage putleak, firing equipment efficiency of heating surface η, the heating capacity Q of caliberating device0With the amount of stored heat Q of test devices
To the leaking heat Q of test device1.Specifically, the leaking heat Q of test device1The input power P of=caliberating deviceInput× heating effect
The leaking heat Q of rate η-caliberating deviceleakThe heating capacity Q of-caliberating device0The amount of stored heat Q of-test devices, wherein, caliberating device
Input power PInputRefer to firing equipment to be tested the setting value that the specified heating capacity of machine works as caliberating device firing equipment,
Demarcation when from moment on-test a to off-test moment b in a period of, the average value of firing equipment power；Caliberating device
Leaking heat QleakDuring equal to demarcation in a period of the moment on-test a to off-test moment b instantaneous leaking heat Qleaki's
Integrating value, i.e. Qleak=∫b aQleakidi/ H, instantaneous leaking heat QleakiThe environment temperature T gathered in real time during equal to demarcationamiWith demarcation
Water temperature T in water tankiDifference with leaking hot COEFFICIENT KleakProduct, i.e. Qleaki=Kleak×(Ti-Tami), moment on-test, a was
At the time of when the inflow temperature for marking the caliberating device of Timing measurement is setting initial temperature, surveyed when off-test moment b is demarcation
At the time of when the leaving water temperature of the caliberating device of amount is setting end temp.The heating capacity Q of caliberating device0=C × G × (t2-
t1)/(3600 × H × 1000), in formula：Q0Unit is kW；C is the specific heat of water under mean temperature, and unit is J/ (kg DEG C), should
Mean temperature refers to the mean temperature of the initial coolant-temperature gage of actual measurement and the end coolant-temperature gage of actual measurement；G is the quality of healed water, single
Position is kg；t1For initial coolant-temperature gage, i.e. the coolant-temperature gage of moment on-test measurement, unit for DEG C；t2To terminate coolant-temperature gage, that is, try
Test finish time measurement coolant-temperature gage, unit for DEG C；H is the heat time, i.e., from moment on-test to the off-test moment
Time, unit is h；Specifically, the implication of each parameter can be found in standard in the formula《GB/T 21362-2008 are commercial or industrial
And the heat pump water-heating machine of similar applications》In about unit heating capacity calculation formula related description.The amount of stored heat Q of test devices
Acquisition also can be found in aforesaid standards.
The present invention has taken into full account leaking heat and its heating of caliberating device itself when obtaining the leaking heat of test device
The efficiency of heating surface of equipment, it is to avoid the survey obtained caused by the certain heat loss and leakage heat loss that firing equipment has in itself
The inaccurate situation of leaking heat result that trial assembly is put occurs so that can test the leaking heat of test device exactly, so as to
To test total heating capacity of tested machine exactly.
The acquisition to the hot coefficient of leakage and the efficiency of heating surface of caliberating device so that firing equipment includes electric heater as an example is entered below
Row explanation.The hot coefficient of leakage and the efficiency of heating surface of other heat transmission equipments can be found in the regulation of relevant industries standard.
The intrinsic energy consuming process of 24h can be used to test the hot COEFFICIENT K of leakage to obtain caliberating device before demarcationleak.Specifically
Ground, the hot coefficient of leakage of caliberating device is obtained according to the first formula, and the first formula is Kleak=E/ [S1·(T-Tam)], wherein, Kleak
To leak hot coefficient, unit is W/K；E is the power consumption of run time section, and unit is Wh；S1For using 24 hours intrinsic energy consumption sides
Run time during the hot coefficient of leakage of method test calibration device, unit is h；T for caliberating device demarcation water tank at runtime
Section average temperature, unit for DEG C；TamFor run time section average ambient temperature, unit for DEG C.
When being tested, water is filled into demarcation water tank 1, and closes the stop valve of the inlet and outlet of demarcation water tank 1,
Under default ambient temperature conditions, such as 20 DEG C of constant ambient temperature, by water temperature from setting initial heating temperature to setting end temp,
And be maintained in error range, the run time S after recording from a certain cut-off point to operation 24h a certain cut-off point1, power consumption
Measure E, average temperature T, average ambient temperature Tam.So-called " cut-off point " refers to that water temperature reaches that electricity adds design temperature (break-off signal) afterwards
Hot device stops heating, here with Examples below, using set initial temperature as 15 DEG C, set end temp as 55 DEG C, mistake
Poor scope is illustrates exemplified by ± 1 DEG C, then break-off signal is 56 DEG C, and it is 54 DEG C to connect temperature.Water temperature is higher than the break-off signal
When electric heater can be stopped (heat), water temperature drop, after certain temperature (connecting temperature) is dropped to, electric heater
Understand task again, water temperature is increased, so circulation.Whether the work of electric heater realized by control module 7, run time S1
Tested and calculated by control module 7；The measurement of water temperature is measured by survey water temperature element 2, to realize the average temperature in run time
Measurement, the measurement of environment temperature is measured by survey environment temperature element 9, to realize the survey of the average ambient temperature in run time
Amount, these data measured are transferred to control module 7；The power consumption E of electric heater section at runtime is by power test mould
Block 11 is measured, and is transferred to control module 7；Finally data processing is carried out by control module 7 and caliberating device 12 is calculated
Leak hot COEFFICIENT Kleak.Default environment temperature that the above-mentioned intrinsic energy consuming process of 24h is mentioned, the setting initial temperature of water temperature, setting knot
Environment temperature, the setting initial temperature of water temperature when Shu Wendu should be with demarcation, setting end temp are corresponding consistent, i.e., this method is carried
Environment temperature numerical value (such as 20 DEG C) when the environment temperature (such as 20 DEG C) arrived should be with demarcation unanimously sets initial temperature (example
Such as 15 DEG C) setting initial temperature numerical value (such as 15 DEG C) when should be with demarcation is consistent, setting end temp water temperature (such as 55 DEG C)
Setting end temp numerical value (such as 55 DEG C) when should be with demarcation is consistent.
In order to obtain the efficiency of heating surface η of electric heater, actual volume is injected into the demarcation water tank 1 of caliberating device before demarcation
Setting initial temperature water, water is heated using electric heater, water temperature is risen to setting end temp, electric heater stops
Only work；The efficiency of heating surface of electric heater is obtained according to the second formula, the second formula is η=V/ (θA-θB)/(E2×860)×
100%；Wherein, η is the efficiency of heating surface, and unit is 100%；V is the demarcation water tank actual volume of caliberating device, and unit is L；θAFor
Water temperature measured value when electric heater is stopped, that is, reach setting end temp (or break-off signal) electric heater first afterwards
It is secondary stop heating when demarcation water tank average temperature, unit for DEG C；θBWater temperature measured value when being started working for electric heater,
I.e. electric heater 3 heat before demarcation water tank 1 average temperature, unit for DEG C；E2For by water by setting initial heating temperature extremely
The once heating power consumption needed for end temp is set, i.e., beginning heat to electric heater 3 by electric heater 3 stops adding for the first time
The heating power consumption of electric heater in hot this period, unit is kWh.
It should be noted that the once heating power consumption E in the second formula2With the consumption in the run time in the first formula
Electricity E is different, and the former refers to that the water demarcated in water tank 1 is electrically heated device 3 from setting initial heating temperature to setting end temp
The power consumption of (i.e. break-off signal), and the latter is to demarcate the water in water tank 1 to have reached after setting end temp, in order to keep the temperature
Spend and need the power consumption inputted.
Below to the heating capacity Q of caliberating device0Acquisition process be described in detail.
During demarcation, tested machine (i.e. commercial circulation heat pump water heater) is replaced to be connected in test device caliberating device 12,
Position of the tested machine in test device is instead of with demarcation water tank 1 and electric heater, substituting tested machine with electric heater 3 adds
Thermal medium water.Environment temperature is adjusted and controlled to default environment temperature, quantitative thermostatted water, Ran Houqi are injected to test device
Dynamic caliberating device 12 and the water pump 8 of test device etc., bring into operation.Control module 7 is added using the specified heating capacity for being tested machine as electricity
The power output of the set value calculation electric heater 3 of hot device 3.Under the work of electric heater 3, water temperature gradually rises, and water temperature takes
The mean temperature of 8 RTDs carried from standard water tank 10, as examination at the time of record water temperature reaches certain value (such as 15 DEG C)
Test start time, as the off-test moment at the time of record water temperature reaches another value (such as 55 DEG C).Moment on-test
Water temperature (setting initial temperature) and the water temperature at off-test moment (setting end temp) can be according to standard GB/T/T
Relevant regulations in 21362-2008, such as plain edition Teat pump boiler, set initial temperature as 15 DEG C, set end temp
For 55 DEG C；For low form Teat pump boiler, initial temperature is set as 9 DEG C, end temp is set as 55 DEG C.According to national standard
GB/T 21362-2008, the heating capacity Q of caliberating device 12 is calculated with the 3rd formula0, Q0=C × G × (t2-t1)/(3600×H
× 1000), in formula：Q0For the heating capacity of caliberating device 12, unit is kW；C is the specific heat of water under mean temperature, and unit is J/
(kg DEG C), the mean temperature refers to initial coolant-temperature gage and terminates the mean temperature of coolant-temperature gage；G is the quality of healed water, single
Position is kg；t1For initial coolant-temperature gage, unit for DEG C；t2For terminate coolant-temperature gage, unit for DEG C；H is the heat time, from on-test
The time at moment to off-test moment, unit is h.Quantitative (i.e. the water injection rate) of thermostatted water can be calculated by below equation：
According to formula qv=0.86 × Qn/ 5 calculate in the circulating water flow of water pump 8, formula：qvFor circulating water flow, unit is m3/h；QnFor
The nominal heating capacity of commercial circulation heat pump water heater (i.e. specified heating capacity, namely caliberating device 12 the setting that works of firing equipment
Value), unit is kW.Further according to formula：Water injection rate=Qn× 1000 × 3600/ (C × (55-15)) calculates the water filling of test device
In amount, formula：C is the specific heat of water, and unit is J/ (kg DEG C), and 55 be setting end temp value, and 15 be setting initial temperature value.
Obtaining the leaking heat Q of test devicelAfterwards, total heating capacity Q of tested machine can be calculatedhWhen, specific formula is as follows：
Qh=Q0+Qs+Ql=C × G × (t2-t1)/(3600×H×1000)+Qs+Ql；Q in the formula0To be tested the heating capacity of machine, i.e.,
In test device the heating capacity that WATER AS FLOW MEDIUM is produced is heated by being tested machine.
Because being not each carry out before heating capacity testing experiment all with caliberating device demarcation test dress in practical operation
The leaking heat put, so when unused caliberating device is demarcated, and test condition (environment temperature during heating capacity testing experiment,
Circulating water flow) from demarcation when test condition it is different when, in order to be accurately obtained the leaking heat of this experiment, the present invention is demarcated
Function of the control module 7 of device 12 with fitting operation curve, can be fitted according to the multiple test data recorded before
Relation curve between the leaking heat and environment temperature and circulating water flow of test device, in actual applications according to current ring
Border temperature, circulating water flow, control module 7 can calculate the leaking heat of this experiment test device automatically.Matched curve can be with
With methods such as equations with many unknowns.Specifically, control module 7 obtains the leaking heat of one group of test device under an experimental condition,
When experimental condition is N number of, the leaking heat of the N group test devices under N number of experimental condition is obtained, some experimental condition refers to a certain
Different circulating water flow conditions under environment temperature, the leaking heat of the different test device of different circulating water flow correspondences, so that
The leaking heat of the one group of test device formed under some experimental condition, i.e., under a certain environment temperature, a certain circulating water flow, obtain
To the leaking heat of a test device, different circulating water flows are converted, so as to obtain one group of survey under a certain environment temperature
The leaking heat that trial assembly is put.The difference of experimental condition each other is the difference of environment temperature, and N is natural number, and N is more than etc.
In 2, preferably equal to 6, environment temperature is respectively 5 DEG C, 10 DEG C, 15 DEG C, 20 DEG C, 25 DEG C, 30 DEG C.
As the environment temperature T of pending heating capacity testing experimentamWith a certain environment in recorded N number of experimental condition
When temperature is consistent, it is fitted with the data of different circulating water flows under the environment temperature and obtains curve, and try to achieve pending system
The leaking heat of the test device of calorimetric test, such as Fig. 3, ordinate are the leaking heat of test device, and abscissa is circulating water flow,
Under a certain environment temperature different circulating water flows fitting curve be a straight line, environment temperature be 20 DEG C at and circulating water flow
Measure as 10m3Under conditions of/h, the leaking heat of test device looks into curve, should be 3.5kW.
The environment temperature T tested when pending heating capacityamWith the environment temperature in recorded N number of experimental condition not
When consistent, selection two is immediate with its environment temperature in N number of experimental condition, labeled as upper environment temperature Tam1(it is more than
The environment temperature of pending heating capacity experiment) and lower environment temperature Tam2(it is less than the environment temperature that pending heating capacity is tested),
Use formula Ql=(Ql1-Ql2)×(Tam-Tam2)/(Tam1-Tam2)+Ql2Computing environment temperature is TamIt is q with circulating water flow1Condition
Under test device leaking heat, Ql1Expression environment temperature is Tam1It is q with circulating water flow1Under the conditions of test device leakage
Heat, Ql2Expression environment temperature is Tam2It is q with circulating water flow1Under the conditions of test device leaking heat.Due to circulating water flow
Amount is relevant with the nominal heating capacity of commercial circulation heat pump water heater, and setting value (the heating work(inputted of firing equipment work
Rate) it is also relevant with the nominal heating capacity of commercial circulation heat pump water heater, therefore can be by changing the heating that firing equipment is inputted
Power and the nominal heating capacity of different commercial circulation heat pump water heaters are corresponding, then obtain different circulating water flows.
In order that the heating power of firing equipment input be change with corresponding from different circulating water flows, heating is set
It is standby to preferably include electric heater 3 and power adjusting control device 4.The input power of electric heater 3 is adjustable, and its quantity is many
Group electric heater, such as 2-5 groups；Electric heater 3 is heating tube, totally 5 groups in an embodiment of the present invention.Power adjusting control dress
Put 4 to be connected with control module 7 and electric heater 3, the input power for adjusting electric heater 3 according to the instruction of control module 7
Until reaching the setting value that electric heater 3 works.In other examples, firing equipment can include multigroup different fixed work(
The electric heater of rate value.
Preferably, in order to more precisely control the input power of electric heater, firing equipment also includes：Some break-make dresses
6 are put, it realizes the group number that control electric heater 3 works, the number of on-off system 6 by controlling the break-make of the heating of electric heater 3
Amount is preferably consistent with the group number of electric heater 3, and each on-off system 6 controls whether one group of corresponding electric heater 3 connects
Logical heating.
Specifically, one group or several group electric heaters of the on-off system 6 according to needed for the instruction connection that control module 7 is sent
3, such as quantity of electric heater is 5 groups, every group of input power 20kW, common 100kW, and the heating amount of setting is 30kW, then controls
Module 7 will send instruction to on-off system and indicate that certain two groups of electric heater is devoted oneself to work, and at this moment on-off system controls this two groups electricity
Heater is connected, remaining disconnection；After two groups of heaters are devoted oneself to work, because to reach 30kW, and all devoting oneself to work is
40kW, so control module 7 is should to be adjusted to how many suitable export ratio control power adjusting control devices 4 according to 40kW,
I.e. power adjusting control device 4 receive electric heater 3 work group number after adjust electric heater 3 export ratio make its with
Setting value is consistent.In practice, the minimal adjustment ratio (i.e. minimal adjustment ability) that power adjusting control device 4 can reach is
Fixed；Such as, if not using on-off system 6, then the regulation control electric heater of power adjusting control device 4 can only be passed through
The input power of (such as 100kW), it is assumed that it is desirable that 20kW is arrived in regulation, and the minimal adjustment ability of power adjusting control device 4 is
1%, i.e., that minimum can be adjusted is ± 1kW, then deviation is (1/20) × %=5%；And if using on-off system 6, then
One group of corresponding electric heater can be the less heater of rated power (such as 30kW), connect the electric heater and pass through
Power adjusting control device 4 adjusts target input power 20kW, and the minimal adjustment ability of power adjusting control device 4 is
1%, then that minimum can be adjusted is ± 0.3kW, then deviation is only (0.3/20) × %=1.5%, thus passes through break-make
Device 6 more precisely controls the input power of electric heater 3.
, can also be without using power adjusting control device 4 in another embodiment that the present invention is provided, and filled only with break-make
Put 6, i.e. firing equipment includes electric heater 3 and on-off system 6, on-off system 6 is connected with control module 7 and electric heater 3,
Make the general power of electric heater close to setting value for connecting one group or several groups of electric heaters according to the instruction of control module 7.
The embodiment of the present invention additionally provides a kind of scaling method of commercial circulation heat pump water heater test device, using above-mentioned
Caliberating device.Comprise the following steps that：
Step before demarcation, obtains the hot COEFFICIENT K of leakage of caliberating deviceleak, obtain the heating effect of the firing equipment of caliberating device
Rate η, caliberating device is the device demarcated to commercial circulation heat pump water heater test device；
Timed step is marked, replaces commercial circulation heat pump water heater to be connected to commercial circulation heat pump water heater caliberating device and surveys
During trial assembly is put, under the circulating water flow of default environment temperature and the water pump of default commercial circulation heat pump water heater test device,
The heating capacity of caliberating device is tested, the heating capacity of caliberating device is then obtained according to the 3rd formula, the 3rd formula is Q0
=C × G × (t2-t1)/(3600×H×1000)；And according to the hot COEFFICIENT K of leakage of the caliberating device of acquisitionleak, firing equipment
Efficiency of heating surface η, caliberating device heating capacity Q0With the amount of stored heat Q of test devicesObtain the leaking heat Q of test device1, test dress
The leaking heat Q put1The input power P of=caliberating deviceInputThe leaking heat Q of × efficiency of heating surface η-caliberating deviceleak- caliberating device
Heating capacity Q0The amount of stored heat Q of-test devices。
Before demarcation in step, caliberating device is heated using electric heater, using 24 hours intrinsic energy consuming process to demarcation
The hot coefficient of leakage of device is tested；The hot coefficient of leakage of caliberating device is obtained according to the first formula, the first formula is：Kleak=E/
[S1·(T-Tam)], wherein, KleakTo leak hot coefficient, unit：W/K；E is the power consumption of run time section, unit：Wh；S1To adopt
With run time when leaking hot coefficient of 24 hours intrinsic energy consuming process test calibration devices, unit：h；T is the mark of caliberating device
Determine the average temperature of water tank section at runtime, unit：℃；TamFor the average ambient temperature of run time section, unit：℃.
Before demarcation in step, the water of the setting initial temperature of injection actual volume into the demarcation water tank of caliberating device,
Water is heated using the electric heater of caliberating device, water temperature is risen to setting end temp, electric heater is stopped；Root
The efficiency of heating surface of the heater of caliberating device is obtained according to the second formula, the second formula is η=V/ (θA-θB)/(E2×860)×
100%；Wherein, η is the efficiency of heating surface, unit：100%；V is the demarcation water tank actual volume of caliberating device, unit：L；θAFor electricity
Water temperature measured value when heater is stopped, unit：℃；θBWater temperature measured value when being started working for electric heater, unit：
℃；E2For the heating power consumption by water as setting initial heating temperature to needed for setting end temp, unit is kWh.
Embodiment 1
In the present embodiment, the electric heater 3 of caliberating device 12 is made up of 5 groups of 20kW heating tube, every group of heating tube connection
UT550 (i.e. power adjusting control device 4) and solid-state relay SSR (i.e. on-off system 6).Such as the volume of the tested machine of required demarcation
It is 55kW to customize heat, according to required heat, and the software of control system 7 automatic will calculate the heater assembly of required input,
, it is necessary to which the SSR of 3 groups of heating tubes is connected, the SSR of 2 groups of heating tubes disconnects in the present embodiment, UT550 automatically adjusts 3 groups of heaters
Export ratio, minimum resolution can reach 1%, it is possible to which the input for accurately controlling electric heater 3 is 55kW.
Respectively in tri- horizontal planes of 1/4h, 1/2h and 3/4h along demarcation water tank 1 height h, the inside of each horizontal plane is equal
4 RTDs of even arrangement, totally 12 RTDs, for the temperature of test calibration device 12, that is, the water temperature demarcated in water tank 1.Temperature
Spend the temperature of 12 RTDs in the water tank 1 of collection demarcation in real time of acquisition module 5.
(1) the hot coefficient of leakage of caliberating device 12 itself is first demarcated before demarcation test is formally started.
Water is filled to demarcation water tank 1, and closes the stop valve of the inlet and outlet of demarcation water tank 1, in constant 20 DEG C of conditions
Under, water temperature (average value that 12 RTDs are measured) is heated to 55 DEG C from 15 DEG C, and kept for 55 DEG C ± 1 DEG C, when less than 54 DEG C
When, the software of control system 7 will control electric heater 3 (i.e. heating tube) work until reaching 56 DEG C.Power meter (i.e. power test
Module 11) connection heating tube (i.e. electric heater 3) and control module 7, the power of power meter real-time testing heating tube and by data
It is transferred to control module 7.Control module 7 is recorded is stopped to after 24h certain from a certain moment temperature higher than 56 DEG C of electric heaters
One moment temperature is higher than the time that 56 DEG C of electric heaters are stopped, i.e. run time S1(S is measured in the present embodiment1=24.5h)
With accumulative power consumption E (E=35.6kWh is measured in the present embodiment), average temperature T (average value of the period water temperature, this implementation
T=55.6 DEG C is measured in example), average ambient temperature Tam(measure T in the average value of the period environment temperature, the present embodimentam
=20.15 DEG C), leak hot COEFFICIENT KleakCalculated with following formula (i.e. the first formula).In the present embodiment, it is 41W/K to leak hot coefficient.
Kleak=E/ [S1·(T-Tam)]
In formula：
KleakThe hot coefficient of-leakage, unit：W/K；
Power consumption in E-run time, is gathered by power meter and is tested, unit：Wh；
S1- run time, by the software test and calculating of control module 7, unit：h；
Average temperature in T-run time, that is, actually measured water temperature and actually measured water temperature during connection when disconnecting
Average value, measured by the survey water temperature element 2 of caliberating device 12, unit：℃；
TamAverage ambient temperature in-run time, is measured, unit by survey environment temperature element 9：℃.
(2) efficiency of heating surface of electric heater 3 is tested.
In the present embodiment, the actual volume V of demarcation water tank 1 is 600L, initial water temperature θBIt is 15.0 DEG C, it is flat during disconnection
Equal water temperature θAIt is 55.5 DEG C, power consumption E2It is 27.9kWh.Obtained electric heater is then calculated according to following formula (i.e. the second formula)
Efficiency of heating surface η be 98%.
η=V/ (θA-θB)/(E2× 860) × 100%
In formula：
η-energy efficiency, 100%；
V-caliberating device water tank actual volume, L；
θAAverage temperature during-disconnection, that is, reach the stopping for the first time of design temperature (i.e. 56 DEG C of break-off signal) post-heater
Average temperature during heating, is measured by the survey water temperature element 2 of caliberating device 12, DEG C；
θBThe average temperature of demarcation water tank before the heating of average temperature before-energization, i.e. heater, by caliberating device 12
Survey water temperature element 2 measure, DEG C；
E2- once heat power consumption, i.e., by electric heater begin heat to electric heater for the first time stop heating this section when
The heating power consumption of interior electric heater, is gathered by power meter and is tested, kWh.
(3) the demarcation testing experiment of the commercial circulating heating type Teat pump boiler test device of formally progress is started.
Tested machine is replaced to be connected in test device as shown in Figure 2 caliberating device 12.Following for water pump 8 is calculated according to following formula
Ring water-carrying capacity, it is 9.46m to calculate the circulating water flow in the present embodiment3/h。
qv=0.86 × Qn/5
In formula：
qv--- circulating water flow, unit：m3/h；
Qn--- Teat pump boiler name heating capacity, unit：kW.
The water injection rate of test device is calculated according to following formula, the water injection rate in standard water tank 10 is calculated according to following formula and be should be
1184kg。
Water injection rate=Qn×1000×3600/(C×(55-15))
In formula：C --- the specific heat of water, unit under mean temperature：J/(kg·℃).
Inject 1184kg thermostatted water to system first, less than 15 DEG C (temperature of thermostatted water in the present embodiment of the temperature of water
For 10 DEG C), then start caliberating device 12 and the water pump 8 of test system etc., bring into operation.In the electric heater of caliberating device 12
Under 3 work, water temperature gradually rises, and water temperature is derived from the mean temperature for 8 RTDs that standard water tank 10 is carried, and record water temperature reaches
To at the time of 15 DEG C as moment on-test, as the off-test moment at the time of record water temperature reaches 55 DEG C.Establishing criteria
GB/T21362-2008, the heating capacity Q of caliberating device 12 is calculated with following formula (i.e. the 3rd formula)0：
Q0=C × G × (t2-t1)/(3600×H×1000)
In formula：
Q0--- the heating capacity of caliberating device 12, unit：kW；
C --- the specific heat of water, unit under mean temperature：J/ (kg DEG C), the mean temperature refers to initial coolant-temperature gage and end
The mean temperature of sealing temperature；
The quality of G --- healed water, unit：kg；
t1--- initial coolant-temperature gage, unit：℃；
t2--- terminate coolant-temperature gage, unit：℃；
H --- the heat time, from moment on-test to the time at off-test moment, unit：h.
After tested, initial water temperature t1It is 15.03 DEG C, terminates water temperature t2It it is 55.12 DEG C, heat time H is 1.18h；Will be above-mentioned
Numerical value and (kg DEG C) of C=4.18 × 1000J/ substitution above formula, calculate caliberating device heating capacity Q0=C × 1184 ×
(55.12-15.03)/(3600 × 1.18 × 1000)=46.71kW.
At moment on-test to off-test moment, the power meter carried according to caliberating device 12 is tested and recorded, mark
Determine mean power (i.e. firing equipment actually enter power) P of device 12InputIt is 52.3kW.According to calculating above (referring to upper
Literary (one) part) the hot coefficient of leakage that draws caliberating device 12 itself is 41W/K, soft in the control module 7 of caliberating device 12
Part can calculate the water temperature in moment on-test to off-test moment each collection moment demarcation water tank 1 in during this period automatically
With the temperature difference of environment temperature, and then the instantaneous leaking heat of caliberating device 12 is calculated, and by integrating, obtaining final leaking heat is
615W.Show that the efficiency of heating surface of heating tube is 98% according to calculating (seeing above (two) part) above.In addition, through meter
Calculate, the amount of stored heat Q of test device (including standard water tank and pipeline)sIt is 0.62kW.It can then be calculated and be tested according to following formula
The leaking heat Q of device1。
The leaking heat Q of test device1=(the input power P of electric heaterInput× efficiency of heating surface η-caliberating device leaking heat
QleakThe heating capacity Q of)-caliberating device0The amount of stored heat Q of-test devices
Specifically, in the present embodiment test device leaking heat=(52.3 × 0.98-0.615) -46.71-0.62=
3.309kW。
So the leaking heat that the calibration result of caliberating device is this test device is 3.309kW.
(4) start formally to carry out commercial circulating heating type Teat pump boiler heating capacity testing experiment.
Method according to above-mentioned (three) part is tested, and caliberating device simply is replaced with into machine to be measured.The heat measured
The heating capacity of pump water heater is 46.44KW.Then calibrated Teat pump boiler heating capacity, the i.e. total heating capacity of Teat pump boiler
Qh=46.44+Qs+Ql=46.44+0.62+3.309=50.37kW.
If according to conventional caliberating device, the efficiency of heating surface of heater and the leaking heat of caliberating device will not be considered, then
And actual conditions have deviation.
Embodiment 2
Environment temperature and quantity of circulating water in view of test can be different according to test event and change, and these for
The calibration result of caliberating device is influential, so when being demarcated using present invention offer caliberating device, in different tests
Under the conditions of (i.e. demarcate test when environment temperature be respectively 5 DEG C, 10 DEG C, 15 DEG C, 20 DEG C, 25 DEG C, 30 DEG C in the case of), choosing
The water-carrying capacity for taking different power gears (the tested machines for corresponding to different specified heating capacities), adjustment different (correspond to water circulating pump
Different quantity of circulating water) tested, the operation curve for being fitted actual condition is obtained, as shown in Figure 3.In actual test,
The environment temperature residing for flow, standard water tank when being run according to tested Teat pump boiler, can be with interpolation with curve shown in Fig. 3
Calculate the leaking heat of test device.
Different water-carrying capacity at a temperature of designated environment (5 DEG C in such as the present embodiment, 10 DEG C, 15 DEG C, 20 DEG C, 25 DEG C, 30
DEG C) leaking heat can look into curve and obtain：Abscissa is water-carrying capacity, according to test when water-carrying capacity select abscissa a little then
The intersection point with the curve at a temperature of respective environment is obtained, the ordinate of the intersection point is the leakage under the water-carrying capacity and the environment temperature
Heat, such as 10m3Leaking heat of/h the water-carrying capacity under 20 DEG C of environment temperatures, looks into curve, should be 3.5kW.
If tested under non-designated environment temperature, such as water-carrying capacity is 10m3/ h, environment temperature TamFor 17 DEG C of leakage
Heat Ql, interpolation calculation can be carried out, i.e., is first obtained according to lookup curve：Water-carrying capacity is 10m3/ h, environment temperature Tam2For 15 DEG C
When leaking heat Ql2It is 3kW, water-carrying capacity is 10m3/ h, environment temperature Tam1For 20 DEG C when leaking heat Ql1It is 3.5kW, then both press
Following formula interpolation calculation：
Ql=(Ql1-Ql2)×(Tam-Tam2)/(Tam1-Tam2)+Ql2
=(3.5-3) × (17-15)/(20-15)+3
=3.2kW
Above example is only a kind of present invention embodiment therein, and it describes more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (10)
1. a kind of caliberating device of commercial circulation heat pump water heater test device, it is characterised in that the caliberating device includes：Mark
Determine water tank, firing equipment, temperature collect module, power test module and control module, wherein,
The demarcation water tank includes body of thermal insulating box and multiple survey water temperature elements, and the body of thermal insulating box is used to accommodate water, the survey water
Warm element is used to measure the water temperature in the body of thermal insulating box；
The firing equipment is used to heating the water that the body of thermal insulating box is accommodated, the heating member of the firing equipment be arranged in it is described absolutely
Hot box house；
The temperature collect module is connected with the control module, the survey water temperature element and survey environment temperature element respectively, is used
In gathering the temperature that the temperature that measures of survey water temperature element and the survey environment temperature element are measured in real time, and by data transfer
To the control module；The survey environment temperature element is used for measuring environment temperature；
The power test module is connected with the control module and the firing equipment respectively, for being heated described in real-time testing
The actual power of equipment, and transfer data to the control module；
The control module is used for the hot COEFFICIENT K of leakage that the caliberating device is obtained before being demarcated to test deviceleakWith it is described
The efficiency of heating surface η of firing equipment, the heating capacity Q of caliberating device described in mark timing acquisition is being carried out to the test device0, and root
According to the hot COEFFICIENT K of leakage of the caliberating device of acquisitionleak, the efficiency of heating surface η of the firing equipment, the caliberating device heat
Measure Q0With the amount of stored heat Q of test devicesObtain the leaking heat Q of the test device1。
2. caliberating device according to claim 1, it is characterised in that the leaking heat Q of the test device1=PInput×η-
Qleak-Q0-Qs；
In formula：PInputSetting for the firing equipment using the specified heating capacity of the commercial circulation heat pump water heater as work
Value, demarcation when from moment on-test to off-test moment in a period of, the average value of the firing equipment power, unit
For kW；
QleakDuring for demarcation in a period of moment on-test to the off-test moment instantaneous leaking heat Qleaki's
Integrating value, unit is kW；
Q0For the heating capacity of the caliberating device, unit is kW；
QsFor the amount of stored heat of the test device, unit is kW.
3. caliberating device according to claim 1 or claim 2, it is characterised in that the heating member is electric heater, the heating is set
It is standby also to include：Power adjusting control device；The electric heater is the adjustable multigroup electric heater of input power；The power is adjusted
Section control device is connected with the control module and the electric heater, for according to the instruction of control module regulation
The total power input of electric heater is until reach the setting value of the electric heater work.
4. caliberating device according to claim 3, it is characterised in that the firing equipment also includes：Some on-off systems, institute
State on-off system to be connected with the control module and the electric heater, for according to the instruction of control module control
The break-make of electric heater heating controls the group number of the electric heater work to realize.
5. caliberating device according to claim 4, it is characterised in that the quantity of the on-off system and the electric heater
Group number is consistent, and each on-off system accordingly controls whether one group of electric heater connects heating.
6. caliberating device according to claim 1 or claim 2, it is characterised in that the heating member is electric heater, the heating is set
It is standby also to include：Some on-off systems, the on-off system is connected with the control module and the electric heater, for according to institute
One group of the instruction connection or several groups of electric heaters for stating control module make the total power input of the electric heater reach that the electricity adds
The setting value of hot device work.
7. caliberating device according to claim 1, it is characterised in that the control module is always according to recorded same ring
The leaking heat of the corresponding test device of circulating water flow at a temperature of different circulating water flows and varying environment at a temperature of border
Data, are fitted the relation curve between the leaking heat of test device and environment temperature and circulating water flow；According to current environment
Temperature and circulating water flow and the relation curve obtain current environment temperature and the corresponding test device of circulating water flow
Leaking heat.
8. a kind of scaling method of commercial circulation heat pump water heater test device, it is characterised in that marked using described in claim 1
The step of determining device, the scaling method includes：
Step before demarcation, obtains the hot COEFFICIENT K of leakage of the caliberating deviceleak, obtain the heating of the firing equipment of the caliberating device
Efficiency eta, the caliberating device is the device demarcated to the commercial circulation heat pump water heater test device；
Timed step is marked, the caliberating device is connected to the commercial circulating heat pump instead of the commercial circulation heat pump water heater
In water heater test device, following for the water pump of environment temperature and the default commercial circulation heat pump water heater test device is being preset
Under ring water-carrying capacity, the heating capacity of the caliberating device is tested, the caliberating device is then obtained according to the 3rd formula
Heating capacity, the 3rd formula is Q0=C × G × (t2-t1)/(3600 × H × 1000), in formula：Q0For the heating capacity of caliberating device,
Unit is kW；C is the specific heat of water under mean temperature, and unit is J/ (kg DEG C), and the mean temperature refers to initial coolant-temperature gage and end
The mean temperature of sealing temperature；G is the quality of healed water, and unit is kg；t1For initial coolant-temperature gage, unit for DEG C；t2To terminate
Coolant-temperature gage, unit for DEG C；H is the heat time, and from moment on-test to the time at off-test moment, unit is h；And according to
The hot COEFFICIENT K of leakage of the caliberating device of acquisitionleak, firing equipment efficiency of heating surface η, the heating capacity Q of caliberating device0And test device
Amount of stored heat QsObtain the leaking heat Q of test device1, the leaking heat Q of the test device1The input power P of=caliberating deviceInput
The leaking heat Q of × efficiency of heating surface η-caliberating deviceleakThe heating capacity Q of-caliberating device0The amount of stored heat Q of-test devices。
9. scaling method according to claim 8, it is characterised in that the heating member of the firing equipment is electric heater,
Before the demarcation in step, tested using 24 hours hot coefficients of leakage of the intrinsic energy consuming process to the caliberating device；According to
First formula obtains the hot coefficient of leakage of the caliberating device, and first formula is：Kleak=E/ [S1·(T-Tam)], wherein,
KleakTo leak hot coefficient, unit：W/K；E is the power consumption of run time section, unit：Wh；S1For using 24 hours intrinsic energy consumption sides
Method tests run time during the hot coefficient of leakage of the caliberating device, unit：h；T is transporting for the demarcation water tank of the caliberating device
The average temperature of row period, unit：℃；TamFor the average ambient temperature of run time section, unit：℃.
10. scaling method according to claim 9, it is characterised in that before the demarcation in step, to the caliberating device
Demarcation water tank in injection actual volume setting initial temperature water, using the caliberating device electric heater to water progress
Heating, makes water temperature rise to setting end temp, the electric heater is stopped；The caliberating device is obtained according to the second formula
Electric heater the efficiency of heating surface, second formula be η=V/ (θA-θB)/(E2× 860) × 100%；Wherein, η is heating
Efficiency, unit：100%；V is the demarcation water tank actual volume of the caliberating device, unit：L；θAStop for the electric heater
Water temperature measured value during work, unit：℃；θBWater temperature measured value when being started working for the electric heater, unit：℃；E2For
Heating power consumption by water as setting initial heating temperature to needed for setting end temp, unit is kWh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442681.0A CN107131978B (en) | 2017-06-13 | 2017-06-13 | Calibration device and calibration method for commercial circulating heat pump water heater testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442681.0A CN107131978B (en) | 2017-06-13 | 2017-06-13 | Calibration device and calibration method for commercial circulating heat pump water heater testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107131978A true CN107131978A (en) | 2017-09-05 |
| CN107131978B CN107131978B (en) | 2023-04-25 |
Family
ID=59735034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710442681.0A Active CN107131978B (en) | 2017-06-13 | 2017-06-13 | Calibration device and calibration method for commercial circulating heat pump water heater testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107131978B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975057A (en) * | 2019-05-10 | 2019-07-05 | 湖南工程学院 | The quasi- two-stage compressed air source heat pump water heater experimental test procedures of Gas-supplying enthalpy-increasing |
| CN110907730A (en) * | 2019-12-02 | 2020-03-24 | 湖南雪尔电器有限公司 | Commercial freezer testing system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201003994Y (en) * | 2006-08-31 | 2008-01-09 | 浙江天正电气股份有限公司 | Automatic marking and detection device for heat meter |
| CN202041227U (en) * | 2010-12-29 | 2011-11-16 | 宁波奥克斯空调有限公司 | Performance detection system based on drainage method of air source heat pump water heater |
| US8353625B1 (en) * | 2011-10-03 | 2013-01-15 | Hsi Fire & Safety Group, Llc | Heat detector tester |
| CN105768894A (en) * | 2016-01-29 | 2016-07-20 | 佛山市顺德区美的饮水机制造有限公司 | Hot water production equipment as well as outlet water temperature calibration method and device thereof |
| CN106768495A (en) * | 2017-01-04 | 2017-05-31 | 中标能效科技（青岛）有限公司 | A kind of commercial circulation heat pump water heater performance testing device and method of testing |
-
2017
- 2017-06-13 CN CN201710442681.0A patent/CN107131978B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201003994Y (en) * | 2006-08-31 | 2008-01-09 | 浙江天正电气股份有限公司 | Automatic marking and detection device for heat meter |
| CN202041227U (en) * | 2010-12-29 | 2011-11-16 | 宁波奥克斯空调有限公司 | Performance detection system based on drainage method of air source heat pump water heater |
| US8353625B1 (en) * | 2011-10-03 | 2013-01-15 | Hsi Fire & Safety Group, Llc | Heat detector tester |
| CN105768894A (en) * | 2016-01-29 | 2016-07-20 | 佛山市顺德区美的饮水机制造有限公司 | Hot water production equipment as well as outlet water temperature calibration method and device thereof |
| CN106768495A (en) * | 2017-01-04 | 2017-05-31 | 中标能效科技（青岛）有限公司 | A kind of commercial circulation heat pump water heater performance testing device and method of testing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975057A (en) * | 2019-05-10 | 2019-07-05 | 湖南工程学院 | The quasi- two-stage compressed air source heat pump water heater experimental test procedures of Gas-supplying enthalpy-increasing |
| CN110907730A (en) * | 2019-12-02 | 2020-03-24 | 湖南雪尔电器有限公司 | Commercial freezer testing system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107131978B (en) | 2023-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206420588U (en) | A kind of commercial circulation heat pump water heater performance testing device | |
| CN103234606B (en) | A kind of flow verification system and calibration method thereof | |
| CN202041227U (en) | Performance detection system based on drainage method of air source heat pump water heater | |
| CN203259225U (en) | Flow detecting system | |
| CN103836800B (en) | Electric heater and control method thereof | |
| CN204786682U (en) | Constant temperature constant current hot -water heating system | |
| CN107131978A (en) | The caliberating device and scaling method of commercial circulation heat pump water heater test device | |
| CN108072100B (en) | Floor heating pipeline leakage detection device and detection method | |
| CN208091477U (en) | A kind of Sensor Temperature Compensation calibrating installation | |
| CN107196012B (en) | A kind of cold and hot fluid circulation for power battery bench test | |
| CN109186815A (en) | A kind of low temperature High Mach number detecting probe temperature calibration device | |
| CN106153161B (en) | Instrument detection device | |
| CN105181473A (en) | Detection testing bed for circular pressurizing function of gas water heater | |
| CN107678462A (en) | Constant speed groove and constant speed groove constant speed cooling system and constant speed groove constant speed cool-down method | |
| CN207317239U (en) | Electric heat accumulation hot-water supply system | |
| CN206847827U (en) | The caliberating device of commercial circulation heat pump water heater test device | |
| CN204964306U (en) | Testing platform of gas heater circulation pressure boost function | |
| CN206601206U (en) | The water route connection system of vacuum colorimeter | |
| CN203705378U (en) | Gas isobaric heat capacity measurer | |
| CN109026557A (en) | One kind being used for wind-driven generator cooler comprehensive performance test device | |
| CN106706083A (en) | Water flow sensor performance test bed system | |
| CN207280512U (en) | A kind of Dewar component insulating characteristics comprehensive measurement device | |
| CN105136342A (en) | System and method for improving measurement precision of heat exchange amount of heat exchanger under temperature differential condition | |
| CN206556265U (en) | A kind of water heater intelligent constant-temperature circulating device | |
| CN206450345U (en) | A kind of refrigerator heat exchanger efficiency testboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |