CN107271208B - Evaporative condenser performance test apparatus - Google Patents
Evaporative condenser performance test apparatus Download PDFInfo
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- CN107271208B CN107271208B CN201710466960.0A CN201710466960A CN107271208B CN 107271208 B CN107271208 B CN 107271208B CN 201710466960 A CN201710466960 A CN 201710466960A CN 107271208 B CN107271208 B CN 107271208B
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- evaporative condenser
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- air draft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
Abstract
The present invention relates to a kind of evaporative condenser performance test apparatus.The present invention includes between fresh air sensible heat unit, test and tested evaporative condenser, the air draft of tested evaporative condenser successively pass through air draft chamber, fresh air sensible heat unit and arrange outwardly, fresh air sensible heat unit passes through air supply tube to the extraneous fresh air of the interior supply of test, air draft and fresh air realize heat exchange in fresh air sensible heat unit, are equipped in air draft chamber so that air draft is back to the humidification circulating fan in test in air draft chamber；Tested evaporative condenser and liquid storage device, evaporator form refrigerant circulation loop, and tested evaporative condenser, which is imported and exported, is equipped with refrigerant temperature pressure-measuring-point, and the connecting line of liquid storage device and evaporator is equipped with flowmeter one.The present invention realizes the performance test of evaporative condenser product, greatly reduces the testing cost of evaporative condenser.The present invention can control into the state for testing interior fresh air, can satisfy the test of evaporative condenser under different abilities and different operating conditions.
Description
Technical field
The invention belongs to heat exchanger performance tests and test device field, are specifically related to a kind of evaporative condenser performance
Experimental rig.
Background technique
With China's rapid economic development, living standards of the people are increasingly improved, and people are increasing the demand of air-conditioning,
Air-conditioning uses in all trades and professions, huge numbers of families.The existing air-cooled liquid chillers efficiency used is low, and energy consumption is big；Water cooling
Formula water cooler needs to configure cooling water system, and system structure is complicated.And evaporative condenser combines air-cooled condenser and water
The advantages of cool condenser, is widely applied.
Evaporative condenser is a kind of by using water spray is sprayed to condenser surface, will spray water evaporation by blower
And the latent heat of water is passed into the refrigerant medium in evaporator and realizes condenser tube inner refrigerant gas and condenses.The evaporation
The unit that formula condenser is made of components such as blower, heat exchange coil, water spray compartment system, electric control system and shells.Make
It is simple with the set structure of evaporative condenser, and energy consumption is lower, is in industry widely used at present.
Currently, existing enthalpy potential method performance test apparatus mainly can be to room air conditioner and unit type air conditioner
It is tested and is tested.For these units when carrying out nominal condition refrigeration capacity test, heat exchange amount is all smaller, and these units
When test run, unit itself dehumidifies.Though this device can survey room air conditioner and unit type air conditioner
Examination, but it is not suitable for the evaporative condenser that positive step by step input uses currently on the market.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of evaporative condenser performance test apparatus.The device is
Evaporative condenser performance test provides the economic and convenient and fast method of operation, greatly reduce the test of evaporative condenser at
This.
In order to achieve the object of the present invention, the invention adopts the following technical scheme:
Between a kind of evaporative condenser performance test apparatus, including fresh air sensible heat unit, test and it is located in test
Tested evaporative condenser, the air draft of the tested evaporative condenser successively pass through air draft chamber, fresh air sensible heat unit and arrange
Outwardly, by air supply tube to the extraneous fresh air of the interior supply of the test, the air draft and fresh air exist the fresh air sensible heat unit
Heat exchange is realized in fresh air sensible heat unit, is equipped in the air draft chamber so that air draft is back to adding in test in air draft chamber
Wet circulating fan；The tested evaporative condenser and liquid storage device, evaporator form refrigerant circulation loop, and the refrigerant is pressed
Pass through the tested evaporative condenser, liquid storage device and evaporator, the tested evaporative condenser according to flow direction sequence
It imports and exports and is equipped with refrigerant temperature pressure-measuring-point, the connecting line of the liquid storage device and evaporator is equipped with for measuring refrigerant
The flowmeter one of flow.
Further, which further includes that the steam cylinder of heat source is provided for evaporator, top in the evaporator
Equipped with gas refrigerant heating coil, lower section is equipped with liquid refrigerant heating coil, the gas refrigerant in the evaporator
Heating coil is supplied by the connection of steam cylinder described in steam supply pipe Lu Yiyu, the liquid refrigerant heating coil by steam
Pipeline two is answered to be connected to the steam cylinder；The gas refrigerant heating coil inlet and outlet are equipped with vapor (steam) temperature pressure-measuring-point
One, the steam supply pipe road one is equipped with steam flow control valve one and the flowmeter two for measuring steam flow；Institute
It states liquid refrigerant heating coil inlet and outlet and is equipped with vapor (steam) temperature pressure-measuring-point two, the steam supply pipe road two is equipped with steam
Flow control valve two and flowmeter three for measuring steam flow.
Further, air draft chamber top between the test, the interior air themperature humidity that is equipped with of the test take
Sampling device, the fresh air sensible heat unit, which is equipped with two groups and is located between the test, corresponds to lateral surface.
Further, the connecting line of the liquid storage device and evaporator is equipped with the circulating pump being located at reservoir outlet,
The liquid storage device side is equipped with the liquidometer for measuring liquid storage device inner refrigerant liquid level.
Further, the fresh air sensible heat unit includes plate-fin heat exchanger, steam(-)coil section, and the plate-fin changes
Hot device includes the air draft side and fresh air side for carrying out heat exchange, the air draft side and the air draft chamber outlet, the fresh air according to
It is secondary to enter in the test by the fresh air side, steam(-)coil section and air supply tube.
Further, the air supply tube entrance is equipped with breeze fan, and the air draft side outlet is equipped with exhaust fan.
Further, the steam cylinder is by the connection of steam(-)coil section described in steam supply pipe Lu Sanyu and to institute
It states and steam is provided in steam(-)coil section.
The beneficial effects of the present invention are:
(1) present invention realizes the performance test of evaporative condenser product.The present invention is when in use: the tested evaporation
The air draft of formula condenser is sent to air draft chamber, then by fresh air sensible heat unit, by the plate-fin heat exchanger in fresh air sensible heat unit
The external world is drained into through exhaust fan after cool-down dehumidification.Extraneous fresh air passes through plate-fin heat exchanger and the row in fresh air sensible heat unit
After wind is exchanged heat, then sent by breeze fan in test after the straight target temperature of fresh air sensible heat unit heat.In the present invention
The air draft of external world's fresh air and tested evaporative condenser carries out sufficient heat exchange by fresh air sensible heat unit.The humidification
The air that circulating fan is used to extract the high humility of the tested evaporative condenser discharge of a part is sent back in test, and control is passed through
The purpose that interior air humidity is tested in control may be implemented in humidification circulating fan rotating speed.The present invention has recycled hot wet negative to greatest extent
Lotus reduces the operating load of experimental rig.
This experimental rig provides the economic and convenient and fast method of operation for the performance test of evaporative condenser, substantially reduces
The testing cost of evaporative condenser.This experimental rig can control evaporative condenser and enter the shape for testing interior fresh air
State, including temperature, humidity；Experimental rig has regulatory function and can reach biggish adjusting span simultaneously, can satisfy not
With the test of evaporative condenser under ability and different operating conditions.
For this experimental rig when being evaporated the test of formula condenser refrigerating capacity, main test measurement point includes: flowmeter
One (liquid pipe flowmeter), tested evaporative condenser import and export refrigerant temperature pressure-measuring-point.Tested evaporation is obtained by calculating
Formula condenser imports and exports the enthalpy difference of refrigerant, then tested evaporative condenser is imported and exported to enthalpy difference and one institute of flowmeter of refrigerant
The fluid flow of measurement is multiplied, and calculates the refrigerating capacity of tested evaporative condenser.
(2) experimental rig of the present invention can also obtain the refrigerating capacity of tested evaporative condenser: meter by another way
Calculate the steam enthalpy difference obtained by liquid refrigerant heating coil inlet and outlet, the steam that liquid refrigerant heating coil is imported and exported
Enthalpy difference is multiplied with by the steam flow of liquid refrigerant heating coil, calculates the heating amount of liquid refrigerant heating coil；
Calculate the steam enthalpy difference obtained by gas refrigerant heating coil inlet and outlet, the steaming that gas refrigerant heating coil is imported and exported
Vapour enthalpy difference is multiplied with by the steam flow of gas refrigerant heating coil, calculates the heating of gas refrigerant heating coil
Amount；Finally the heating amount of liquid refrigerant heating coil is added to obtain tested steaming with the heating amount of gas refrigerant heating coil
The refrigerating capacity of hairdo condenser.By the calculated result of above two test method, can be more accurate obtain tested evaporation
The refrigerating capacity of formula condenser increases the test accuracy of experimental rig.
(3) present invention is provided with two groups of fresh air sensible heat units, so that the interior air of test can be quickly treated as
The operating condition of test of setting, to improve the test progress of tested evaporative condenser.The steam cylinder realizes while to liquid
Steam is supplied in refrigerant heat coil pipe, gas refrigerant heating coil, steam(-)coil section, so that experimental rig is integrally tied
Structure is more simple, and corresponding steam supply pipe Louis is controlled in by operation.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Attached meaning marked in the figure is as follows:
1- exhaust fan；2- fresh air sensible heat unit；3- plate-fin heat exchanger；4- steam(-)coil section；5- breeze fan；
6- air draft chamber；7- humidifies circulating fan；Between 8- test；9- is tested evaporative condenser；10- air themperature humidity sampler；
11- liquid storage device；12- liquidometer；13- circulating pump；14- flowmeter one；15- evaporator；16- liquid refrigerant heating coil；17-
Gas refrigerant heating coil；18- steam flow control valve two；19- steam cylinder；20- flowmeter three；22- steam flow tune
Save valve one；23- flowmeter two；24- air supply tube；25- steam flow control valve three；26- refrigerant temperature pressure-measuring-point.
Specific embodiment
More specific detail is made to technical solution of the present invention below with reference to embodiment:
As shown in Figure 1: the present invention include fresh air sensible heat unit 2, test between 8 and 8 between test in tested evaporation
Formula condenser 9, the air draft of the tested evaporative condenser 9 successively pass through air draft chamber 6, fresh air sensible heat unit 2 and arrange outwardly,
The fresh air sensible heat unit 2 supplies extraneous fresh air into 8 between the test by air supply tube 24, and the air draft and fresh air are in fresh air
Heat exchange is realized in sensible heat unit 2, be equipped in the air draft chamber 6 so that in air draft chamber 6 air draft be back to it is in 8 between test plus
Wet circulating fan 7；The tested evaporative condenser 9 forms refrigerant circulation loop, the system with liquid storage device 11, evaporator 15
Cryogen passes through the tested evaporative condenser 9, liquid storage device 11 and evaporator 15, the tested steaming according to flow direction sequence
Hairdo condenser 9, which is imported and exported, is equipped with refrigerant temperature pressure-measuring-point 26, on the connecting line of the liquid storage device 11 and evaporator 15
Equipped with the flowmeter 1 for measuring refrigerant flow.
The fresh air sensible heat unit 2 includes plate-fin heat exchanger 3, steam(-)coil section 4, the plate-fin heat exchanger 3
Air draft side and fresh air side including carrying out heat exchange, the air draft side and 6 outlet of air draft chamber, the fresh air successively pass through
It crosses the fresh air side, steam(-)coil section 4 and air supply tube 24 and enters in 8 between the test.24 import of air supply tube
Place is equipped with breeze fan 5, and the air draft side outlet is equipped with exhaust fan 1.
The connecting line of the liquid storage device 11 and evaporator 15 is equipped with the circulating pump 13 positioned at 11 exit of liquid storage device, institute
11 side of liquid storage device is stated equipped with the liquidometer 12 for measuring 11 inner refrigerant liquid level of liquid storage device.
The present invention realizes the performance test of evaporative condenser product.The present invention is when in use: the tested vaporation-type
The air draft of condenser 9 is sent to air draft chamber 6, then by fresh air sensible heat unit 2, by the plate fin heat-exchanging in fresh air sensible heat unit 2
The external world is drained into through exhaust fan 1 after 3 cool-down dehumidification of device.Extraneous fresh air by plate-fin heat exchanger 3 in fresh air sensible heat unit 2 with
After the air draft is exchanged heat, then sent by breeze fan 5 between test 8 after fresh air sensible heat unit 2 heats straight target temperature.
The air draft of heretofore described external world's fresh air and tested evaporative condenser 9 carries out adequately heat by fresh air sensible heat unit 2 and hands over
It changes.The air that the humidification circulating fan 7 is used to extract the high humility that the tested evaporative condenser 9 of a part is discharged sends test back to
Between in 8, the purpose of air humidity in 8 between control test may be implemented by control humidification 7 revolving speed of circulating fan.It is of the invention maximum
Limit has recycled hot humidity load, reduces the operating load of experimental rig.
The present invention provides the economic and convenient and fast method of operation for the performance test of evaporative condenser, greatly reduces steaming
The testing cost of hairdo condenser.This experimental rig can control evaporative condenser and enter the state for testing interior fresh air, packet
Include temperature, humidity；Experimental rig has regulatory function and can reach biggish adjusting span simultaneously, can satisfy different abilities
With the test of evaporative condenser under different operating conditions.
For this experimental rig when being evaporated the test of formula condenser refrigerating capacity, main test measurement point includes: flowmeter
One (liquid pipe flowmeter) 14, tested evaporative condenser import and export refrigerant temperature pressure-measuring-point 26.It is tested by calculating
Evaporative condenser imports and exports the enthalpy difference of refrigerant, then tested evaporative condenser is imported and exported to the enthalpy difference and flowmeter of refrigerant
Fluid flow measured by one is multiplied, and calculates the refrigerating capacity of tested evaporative condenser.
The experimental rig further includes that the steam cylinder 19 of heat source is provided for evaporator 15, and top is equipped in the evaporator 15
Gas refrigerant heating coil 17, the interior lower section liquid refrigerant heating coil 16 of the evaporator 15, the gas refrigerant adds
Hot coil 17 is connected to by steam cylinder 19 described in steam supply pipe Lu Yiyu, and the liquid refrigerant heating coil 16 passes through steaming
Vapour supply line two is connected to the steam cylinder 19；The inlet and outlet of gas refrigerant heating coil 17 are equipped with vapor (steam) temperature pressure
Power measuring point one, the steam supply pipe road one are equipped with steam flow control valve 1 and the flow for measuring steam flow
Count 2 23；The inlet and outlet of liquid refrigerant heating coil 16 are equipped with vapor (steam) temperature pressure-measuring-point two, the steam supply pipe road
Two are equipped with steam flow control valve 2 18 and the flowmeter 3 20 for measuring steam flow.
Experimental rig i.e. of the present invention can also obtain the refrigerating capacity of tested evaporative condenser 9: meter by another way
The steam enthalpy difference for obtaining and importing and exporting by liquid refrigerant heating coil 16 is calculated, liquid refrigerant heating coil 16 is imported and exported
Steam enthalpy difference is multiplied with by the steam flow of liquid refrigerant heating coil 16, calculates adding for liquid refrigerant heating coil
Heat；The steam enthalpy difference for obtaining and importing and exporting by gas refrigerant heating coil 17 is calculated, by gas refrigerant heating coil 17
The steam enthalpy difference of inlet and outlet is multiplied with by the steam flow of gas refrigerant heating coil 17, calculates gas refrigerant heating
The heating amount of coil pipe 17；Finally by the heating of the heating amount of liquid refrigerant heating coil 16 and gas refrigerant heating coil 17
Amount, which is added, obtains the refrigerating capacity of tested evaporative condenser.By the calculated result of above two test method, can more subject to
True obtains the refrigerating capacity of tested evaporative condenser 9, increases the test accuracy of experimental rig.
The steam cylinder 19 is by the connection of steam(-)coil section 4 described in steam supply pipe Lu Sanyu and to the steam
Steam is provided in heating dish pipeline section 4.The steam cylinder 19 realizes while to liquid refrigerant heating coil 16, gas refrigeration
Steam is supplied in agent heating coil 17, steam(-)coil section 4, so that experimental rig overall structure is more simple, and makes phase
The steam supply pipe Louis answered is controlled in by operation.
The air draft chamber 68 top between the test, 8 is interior equipped with air themperature humidity sampler between the test
10, the fresh air sensible heat unit 2 is equipped with two groups and is located at 8 corresponding lateral surfaces between the test.The present invention passes through the sky
Gas temperature humidity sampler 10 can be tested the temperature humidity value of interior actual air, according to the temperature of actual air
To control corresponding fresh air sensible heat unit 2 and humidification circulating fan 7, to regulate and control, air condition reaches degree humidity value in 8 between test
The operating condition of test of setting.The present invention is provided with two groups of fresh air sensible heat units 2, so that air can quick quilt in 8 between test
Processing is the operating condition of test of setting, and the test progress of evaporative condenser 9 is tested with raising.
Claims (6)
1. a kind of evaporative condenser performance test apparatus, it is characterised in that: including fresh air sensible heat unit (2), test between (8) with
And the tested evaporative condenser (9) between test in (8), the air draft of the tested evaporative condenser (9) are successively passed through
Air draft chamber (6), fresh air sensible heat unit (2) and arrange outwardly, the fresh air sensible heat unit (2) is by air supply tube (24) to the survey
Extraneous fresh air is supplied between examination in (8), the air draft and fresh air realize heat exchange, the air draft chamber in fresh air sensible heat unit (2)
(6) it is equipped on so that air draft chamber (6) interior air draft is back to the humidification circulating fan (7) between testing in (8)；The tested evaporation
Formula condenser (9) and liquid storage device (11), evaporator (15) form refrigerant circulation loop, and the refrigerant is suitable according to flow direction
Sequence passes through the tested evaporative condenser (9), liquid storage device (11) and evaporator (15), the tested evaporative condenser
(9) inlet and outlet are equipped with refrigerant temperature pressure-measuring-point (26), set on the liquid storage device (11) and the connecting line of evaporator (15)
There is the flowmeter one (14) for measuring refrigerant flow；
The experimental rig further includes that the steam cylinder (19) of heat source is provided for evaporator (15), and top is set in the evaporator (15)
Have gas refrigerant heating coil (17), lower section is equipped with liquid refrigerant heating coil (16) in the evaporator (15), described
Gas refrigerant heating coil (17) passes through the connection of steam cylinder (19) described in steam supply pipe Lu Yiyu, the liquid refrigerant
Heating coil (16) passes through the connection of steam cylinder (19) described in steam supply pipe Lu Eryu；The gas refrigerant heating coil
(17) inlet and outlet are equipped with vapor (steam) temperature pressure-measuring-point one, and the steam supply pipe road one is equipped with steam flow control valve one (22)
And the flowmeter two (23) for measuring steam flow；Liquid refrigerant heating coil (16) inlet and outlet are equipped with steam temperature
Pressure-measuring-point two is spent, the steam supply pipe road two is equipped with steam flow control valve two (18) and for measuring steam flow
Flowmeter three (20).
2. evaporative condenser performance test apparatus as described in claim 1, it is characterised in that: the air draft chamber (6) is located at
Between the test at the top of (8), air themperature humidity sampler (10), the fresh air sensible heat machine are equipped between the test in (8)
Group (2) is equipped with two groups and is located at (8) corresponding lateral surface between the test.
3. evaporative condenser performance test apparatus as described in claim 1, it is characterised in that: the liquid storage device (11) and steaming
The connecting line for sending out device (15) is equipped with the circulating pump (13) for being located at liquid storage device (11) exit, and liquid storage device (11) side is set
There is the liquidometer (12) for measuring liquid storage device (11) inner refrigerant liquid level.
4. evaporative condenser performance test apparatus as described in claim 1, it is characterised in that: the fresh air sensible heat unit
It (2) include plate-fin heat exchanger (3), steam(-)coil section (4), the plate-fin heat exchanger (3) includes carrying out heat exchange
Air draft side and fresh air side, the air draft side and the air draft chamber (6) outlet, the fresh air successively pass through the fresh air side,
Steam(-)coil section (4) and air supply tube (24) and enter between the test in (8).
5. evaporative condenser performance test apparatus as claimed in claim 4, it is characterised in that: air supply tube (24) import
Place is equipped with breeze fan (5), and the air draft side outlet is equipped with exhaust fan (1).
6. evaporative condenser performance test apparatus as claimed in claim 4, it is characterised in that: the steam cylinder (19) is logical
It crosses the connection of steam(-)coil section (4) described in steam supply pipe Lu Sanyu and steaming is provided into the steam(-)coil section (4)
Vapour.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710466960.0A CN107271208B (en) | 2017-06-14 | 2017-06-14 | Evaporative condenser performance test apparatus |
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| CN201710466960.0A CN107271208B (en) | 2017-06-14 | 2017-06-14 | Evaporative condenser performance test apparatus |
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| CN107271208A CN107271208A (en) | 2017-10-20 |
| CN107271208B true CN107271208B (en) | 2019-04-09 |
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| CN111595603B (en) * | 2018-09-27 | 2021-12-14 | 合肥通用机械研究院有限公司 | Improved testing device for testing water chilling unit with heat recovery function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032624A (en) * | 2010-11-26 | 2011-04-27 | 合肥通用机械研究院 | Performance test device for evaporative air conditioner |
| CN102269661A (en) * | 2011-07-01 | 2011-12-07 | 南京师范大学 | Testing system for performance of air-cooled compression condensing unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20050075803A (en) * | 2004-01-16 | 2005-07-22 | 삼성전자주식회사 | Performance testing device of refrigeration cycle |
| CN201289434Y (en) * | 2008-11-03 | 2009-08-12 | 上海佐竹冷热控制技术有限公司 | Air conditioner test house with heat-reclaiming device |
| CN202256223U (en) * | 2011-09-29 | 2012-05-30 | 王加龙 | Heat dissipation performance tester of cooler |
| CN104502135A (en) * | 2014-12-23 | 2015-04-08 | 哈尔滨工程大学 | Thermal characteristic testing experimental platform with pressure stabilization function for atmospheric condenser |
| CN205898480U (en) * | 2016-07-14 | 2017-01-18 | 昆山台佳机电有限公司 | Integration evaporation cooling formula cold water unit performance test test bench |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032624A (en) * | 2010-11-26 | 2011-04-27 | 合肥通用机械研究院 | Performance test device for evaporative air conditioner |
| CN102269661A (en) * | 2011-07-01 | 2011-12-07 | 南京师范大学 | Testing system for performance of air-cooled compression condensing unit |
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Address after: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Applicant after: Hefei General Machinery Research Institute Co., Ltd. Applicant after: Hefei General Environment Control Technology Co., Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Applicant before: Hefei Universal Machinery Inst. Applicant before: Hefei General Environment Control Technology Co., Ltd. |
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