CN105699060B - Exchange heat single tube performance test apparatus - Google Patents
Exchange heat single tube performance test apparatus Download PDFInfo
- Publication number
- CN105699060B CN105699060B CN201610021574.6A CN201610021574A CN105699060B CN 105699060 B CN105699060 B CN 105699060B CN 201610021574 A CN201610021574 A CN 201610021574A CN 105699060 B CN105699060 B CN 105699060B
- Authority
- CN
- China
- Prior art keywords
- heat
- cooling
- single tube
- cylinder
- heat exchange
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention discloses a kind of heat exchange single tube performance test apparatus, including cylinder, also added with refrigerant in the cylinder of the sealing；Cold and heat sources pipe and heat exchange single tube are provided in the cylinder；The cold and heat sources pipe is externally connected with Cooling and Heat Source circulation waterway across cylinder, and the heat exchange single tube is externally connected with test loop water route across cylinder；The cylinder axially can rotationally be located at composition heat exchanging single tube on stent along cylinder can be evaporated experiment and the cooperation of agglutination,cold test.Cooling and Heat Source temperature point and Cooling and Heat Source pressure difference measuring point are equipped on the import and export pipeline for the cold and heat sources pipe being connected on Cooling and Heat Source circulation waterway, is connected on the import and export pipeline of the heat exchange single tube on test loop water route and is equipped with heat exchange single tube temperature point and heat exchange single tube pressure difference measuring point.The present apparatus is simple in structure, cost is relatively low, stable, and can simulate more complete measurement condition；Measuring accuracy is greatly improved than conventional apparatus simultaneously, it is ensured that the accuracy and reliability of the experimental rig.
Description
Technical field
The invention belongs to thermal test apparatus field, more particularly to a kind of heat exchange single tube performance test apparatus.
Background technology
With the development of economy, people increasingly focus on the comfort level of living environment, and the use of refrigeration air-conditioner is also increasingly
Extensively.China is also faced with its jumbo consumption to the energy while Air Conditioning Industry acquisition economic benefit is greatly developed.According to system
Meter, is often only the power consumption of room conditioning just more than 100,000,000,000 kilowatt hours, the power consumption of cooling in summer air-conditioning accounts for social total power consumption
30% or so.Power tense situation caused by how alleviating huge refrigeration air-conditioner energy consumption, becomes focus of concern.In sky
In adjusting system, heat exchanger mainly includes evaporator and condenser, their heat exchange efficiency is directly related to the energy consumption of air-conditioning.Heat exchange
Basic unit of the device single tube as evaporator and condenser, the height of the coefficient of heat transfer is to the heat transfer effect of evaporator and condenser
Play important influence.It is preferably studied for the producer that helps to freeze and how to improve the performance of single tube, exchange heat single tube performance test
Device just seems very important.
Traditional heat exchange single column run device is commonly made to the form of heat exchange container.As shown in figure 8, two above and below generally having
A cylinder composition.It is connected between two cylinders with as big as possible connecting tube, for the circulation of refrigerant, still：1. two cylinders
At the connecting tube nozzle of body, refrigerant circulation is more, other places not at nozzle, and refrigerant circulation can be less, can cause
It exchanges heat uneven, situations such as Work condition analogue is untrue；2. two cylinders are sufficiently bulky, manufacture difficulty is big, can increase test operation
When workload, reduce working efficiency, increase cost of labor；3. container machined surface is more, can increase more refrigerant leak sources can
Energy improves the workload of daily maintenance；4. traditional cylinder is a closed container, internal refrigerant is theoretically always
Saturation state so the heat exchange situation under saturation state can only be simulated, is restricted the condition range that experimental performance is tested；
5. traditional cylinder since volume is larger, causes cylinder leakage heat more, so the accuracy of test is relatively difficult to guarantee.
Invention content
The present invention in order to overcome the above-mentioned deficiencies of the prior art, provides a kind of heat exchange single tube performance test apparatus, this dress
Put that simple in structure, cost is relatively low, stable, and can simulate more complete measurement condition；Measuring accuracy is filled than tradition simultaneously
It puts and greatly improves, it is ensured that the accuracy and reliability of the experimental rig.
To achieve the above object, present invention employs following technical schemes：
A kind of heat exchange single tube performance test apparatus, includes the cylinder of rack-mount sealing, in the cylinder also added with
Refrigerant is provided with cold and heat sources pipe and sealing in the heat exchange single tube in cylinder in the cylinder；The cold and heat sources pipe passes through cylinder
Ligation in vitro has Cooling and Heat Source circulation waterway, and the heat exchange single tube is externally connected with test loop water route across cylinder；The cylinder can
Composition heat exchanging single tube on stent is axially rotationally located at along cylinder can be evaporated experiment and the cooperation of agglutination,cold test.
Preferably, the Cooling and Heat Source circulation waterway includes Cooling and Heat Source water tank, Cooling and Heat Source water pump, is located at Cooling and Heat Source pump entrance
The Cooling and Heat Source circulation waterway three-way control valve at place and the Cooling and Heat Source circulation waterway flowmeter for being located at Cooling and Heat Source pump outlet；Institute
State that Cooling and Heat Source circulation waterway three-way control valve one is logical to be connected with Cooling and Heat Source water tank, one it is logical be connected with Cooling and Heat Source water pump, it is another lead to and
The outlet pipe of cold and heat sources pipe is connected；
The test loop water route includes test water tank, test water pump, the test loop water being located at test pump entrance
Road three-way control valve and the test loop water route flowmeter for being located at test pump outlet；The test loop water route threeway tune
Section valve one is logical to be connected with test water tank, one it is logical be connected with test water pump, it is another lead to be connected with the outlet pipe of heat exchange single tube.
Further, the cold and heat sources pipe is controlled logical with Cooling and Heat Source circulation waterway by imported valve and outlet valve
It is disconnected；The heat exchange single tube passes through imported valve and outlet valve control and the break-make in test loop water route.
Further, the Cooling and Heat Source water pump extracts thermostatted water from Cooling and Heat Source water tank, passes through Cooling and Heat Source water route threeway tune
Valve regulation inflow temperature is saved, circulating water flow is measured by Cooling and Heat Source circulation waterway flowmeter；The water pump of testing is from test water
Thermostatted water is extracted in case, inflow temperature is adjusted by test loop water route three-way control valve, passes through test loop water route flowmeter
Measure circulating water flow.
Further, it is equipped on the import and export pipeline for the cold and heat sources pipe being connected on Cooling and Heat Source circulation waterway cold
Heat source temperature measuring point and Cooling and Heat Source pressure difference measuring point are connected to the import and export pipeline of the heat exchange single tube on test loop water route
On be equipped with heat exchange single tube temperature point and heat exchange single tube pressure difference measuring point.
Further, Cooling and Heat Source water tank electric heater is equipped in the Cooling and Heat Source water tank, is equipped with and surveys in the test water tank
Try water tank electric heater；The Cooling and Heat Source circulation waterway is gone here and there with test loop water route by valve group with refrigerant circulation water route
Even, the refrigerant circulation water route includes handpiece Water Chilling Units, refrigerant water pump and for adjusting into handpiece Water Chilling Units inner cold water water temperature
Refrigerant three-way control valve, the switching that the refrigerant circulation water route passes through valve group are respectively that Cooling and Heat Source water tank or test water tank provide
Cold water source.
Preferably, the heat exchange single tube, cold and heat sources pipe are arranged in an axially parallel mode with cylinder.
Preferably, electric heating tube is additionally provided in the cylinder, installation position of the electric heating tube in cylinder is higher than
The liquid level of refrigerant.
Preferably, the cylinder top is additionally provided with the pressure protection dress for ensuring that cylinder is run under the operating pressure of safety
It puts, safety valve and exhaust-valve.
Preferably, the cylinder is equipped with convenient for the liquid-sighting glass of observation internal heat situation and for headlamp light
The lens of entrance；The viewing section of observation refrigerant level is also useful on the cylinder.
The beneficial effects of the present invention are：
1), the present invention is only provided with a cylinder, is provided with cold and heat sources pipe in cylinder, is also equipped with tested heat exchange list
Pipe, cold and heat sources pipe are externally connected with Cooling and Heat Source circulation waterway, and the heat exchange single tube is externally connected with test loop water route；By to cold and hot
The temperature point of import and export, pressure difference measuring point, flow measuring point are calculated and are changed jointly on source circulation waterway and test loop water route
The heat exchange amount of hot single tube completes the performance test of heat exchanging single tube.
Stent can drive cylinder to carry out axial rotation in the present invention, can by the axially different rotational orientation of cylinder
The relative position of convenient switching cold and heat sources pipe and the single tube that exchanges heat, so realize present apparatus heat exchanging single tube evaporation tube experiment or
Person's condenser pipe is tested, the very convenient switching that can be completed in function in single cylinder, so taking over less, installation is simpler
It is single, substantially increase the efficiency of test job.
2), be additionally provided in cylinder of the present invention auxiliary heating cylinder inner refrigerant to hypersaturated state electric heating tube, normally
In the case of, the refrigerant heat of heat exchange single tube cooling is exactly the heat of electric heating tube and the sum of the heat of cold and heat sources pipe.The present invention
Compared to the single tube condensing heat-exchange experiment that saturation state can only be carried out in tradition heat exchange single column run device, device has been widened significantly
The range of condensing condition is debugged, broader test condition has been opened up for single tube condensation test.
3), refrigerant is heated into saturated vapor by cold and heat sources pipe in the present invention, using becoming after electric heater for heating
Superheated steam, when the upward ascension of steam is at the top of cylinder, release heat is cooled to satisfy to the water in heat exchange single tube and then refrigerant
And liquid, liquid drop to cylinder body bottom, complete the cycle of refrigerant.Entire heat transfer process carries out in single cylinder container,
Cylinder volume very little, thermal capacity is limited, exchanges for heat test, it is meant that smaller leakage heat, smaller error, measuring accuracy have
Larger raising, enable the invention to carry out high-precision tiny flow quantity is heated or cooled test；In addition, mono-tube design is most
The heat-exchanging state for simulating practical case tube heat exchanger of big degree more ensures the accuracy and reliability of the experimental rig.
4), the top of middle cylinder body of the present invention is provided with pressure protective device, safety valve and exhaust-valve, when the pressure in cylinder
During power exception, pressure protective device generally first passes through warning device and operating personnel is reminded to pay attention to.If pressure still persistently increases,
Pressure value reaches the working value of safety valve, then safety valve can rapid pressure release, play the role of protection.Exhaust-valve on cylinder, it is main
It is used to discharge the large quantity of air in cylinder, so that it is guaranteed that experiment is accurate, also can guarantee that pressure indicator is correct, further
Ensure the safe and reliable of cylinder.
5), cylinder of the present invention be equipped with convenient for observation internal heat situation liquid-sighting glass, and headlamp light pass through it is saturating
Mirror irradiation inner barrel, the heat exchange situation for facilitating observation inner barrel, the device are additionally provided with convenient for the sight of observation refrigerant level
Section is examined, the record and analysis, the reliability for data for greatly facilitating the practical heat exchange situation of testing crew heat exchanging single tube carry
For foundation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structure diagram that heat exchanging single tube of the present invention carries out agglutination,cold test.
Fig. 3 is the structure diagram that heat exchanging single tube of the present invention is evaporated experiment.
Fig. 4 is the schematic diagram of Fig. 2 cylinder external structures.
Fig. 5 is the side view schematic diagram of Fig. 2.
Fig. 6 is the schematic diagram of Fig. 3 cylinder external structures.
Fig. 7 is the side view schematic diagram of Fig. 3.
Fig. 8 is traditional heat exchange single column run device.
The meaning of label symbol is as follows in figure：
1- stents
2- cylinder 20- pressure protective device 21- safety valve 22- exhaust-valve 23- liquid-sighting glass
24- lens 25- viewing sections
3- cold and heat sources pipe 30- Cooling and Heat Source imported valve 31- Cooling and Heat Source outlet valves
4- Cooling and Heat Source circulation waterway 40- Cooling and Heat Source water tank 41- Cooling and Heat Source water pumps
42- Cooling and Heat Source circulation waterway three-way control valve 400- Cooling and Heat Source water tank electric heaters
43- Cooling and Heat Source circulation waterway flowmeter 44- Cooling and Heat Source temperature point 45- Cooling and Heat Source pressure difference measuring points
5- heat exchange single tube 50- heat exchange single tube imported valve 51- heat exchange single tube outlet valves
6- test loops water route 60- test water tank 600- test water tank electric heaters
61- tests water pump 62- test loops water route three-way control valve 63- test loops water route flowmeter
64- heat exchange single tube temperature point 65- heat exchange single tube pressure difference measuring points
7- refrigerants
8- refrigerant circulations water route 80- handpiece Water Chilling Units 81- refrigerant water pump 82- refrigerant three-way control valves
9- electric heating tubes
10- inner barrel temperature points
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of heat exchange single tube performance test apparatus, described including being mounted on the cylinder 2 sealed on stent 1
Also added with refrigerant 7 in the cylinder 2 of sealing, cold and heat sources pipe 3 and sealing are provided in the heat exchange in cylinder 2 in the cylinder 2
Single tube 5；The cold and heat sources pipe 3 is externally connected with Cooling and Heat Source circulation waterway 4 across cylinder 2, and the heat exchange single tube 5 is passed through outside cylinder 2
It is connected with test loop water route 6；The cylinder 2 can be located at along 2 axial rotation of cylinder form heat exchanging single tube 5 on stent 1 can
It is evaporated experiment and the cooperation of agglutination,cold test.The position of 2 opposite brackets 1 of cylinder is as shown in Figure 6,7, cold when being evaporated experiment
Coagulate the position of 2 opposite brackets 1 of cylinder when testing as shown in Figure 4,5.The heat exchange single tube 5, cold and heat sources pipe 3 are axial with cylinder 2
It is arranged in parallel.
The Cooling and Heat Source circulation waterway 4 includes Cooling and Heat Source water tank 40, Cooling and Heat Source water pump 41, is located at 41 entrance of Cooling and Heat Source water pump
The Cooling and Heat Source circulation waterway three-way control valve 42 at place and the Cooling and Heat Source circulation waterway flow for being located at 41 exit of Cooling and Heat Source water pump
Meter 43；The Cooling and Heat Source circulation waterway three-way control valve 42 1 is logical to be connected with Cooling and Heat Source water tank 40, a logical and Cooling and Heat Source water pump 41
It is connected, it is another logical to be connected with 3 outlet pipe of cold and heat sources pipe；
The test loop water route 6 includes test water tank 60, test water pump 61, the test for being located at 61 inlet of test water pump
Circulation waterway three-way control valve 62 and the test loop water route flowmeter 63 for being located at 61 exit of test water pump；The test follows
Ring water route three-way control valve 62 1 is logical to be connected with test water tank 60, one it is logical be connected with test water pump 61, it is another to lead to and the single tube 5 that exchanges heat
Outlet pipe is connected.
The cold and heat sources pipe 3 is realized and Cooling and Heat Source recirculated water by Cooling and Heat Source imported valve 30 and Cooling and Heat Source outlet valve 31
The break-make on road 4；The heat exchange single tube 5 is by exchanging heat single tube imported valve 50 and 51 realization of heat exchange single tube outlet valve is followed with test
The break-make in ring water route 6.
The Cooling and Heat Source water pump 41 extracts thermostatted water from Cooling and Heat Source water tank 40, passes through Cooling and Heat Source water route three-way control valve 42
Inflow temperature is adjusted, circulating water flow is measured by Cooling and Heat Source circulation waterway flowmeter 43；The water pump 61 of testing is from test water
Thermostatted water is extracted in case 60, inflow temperature is adjusted by test loop water route three-way control valve 62, is flowed by test loop water route
Gauge 63 measures circulating water flow.
Cold and hot source temperature is equipped on the import and export pipeline for the cold and heat sources pipe 3 being connected on Cooling and Heat Source circulation waterway 4
Measuring point 44 and Cooling and Heat Source pressure difference measuring point 45, are connected on the import and export pipeline of the heat exchange single tube 5 on test loop water route 6
It is equipped with heat exchange single tube temperature point 64 and heat exchange single tube pressure difference measuring point 65.
Cooling and Heat Source water tank electric heater 400 is equipped in the Cooling and Heat Source water tank 40, test is equipped in the test water tank 60
Water tank electric heater 600；The Cooling and Heat Source circulation waterway 4 and test loop water route 6 by valve group with refrigerant circulation water route 8
Series winding, the refrigerant circulation water route 8 include handpiece Water Chilling Units 80, refrigerant water pump 81 and for adjusting into cold in handpiece Water Chilling Units 80
The refrigerant three-way control valve 82 of water water temperature, the switching that the refrigerant circulation water route 8 passes through valve group are respectively Cooling and Heat Source water tank 40
Or test water tank 60 provides cold water source, and then provide required test water temperature to be evaporated experiment and agglutination,cold test respectively.When
When carrying out agglutination,cold test, as shown in Fig. 2, when being evaporated experiment, the switching of valve group connects the switching connection mode of valve group
It is as shown in Figure 3 to connect mode.
Electric heating tube 9 is additionally provided in the cylinder 2, installation position of the electric heating tube 9 in cylinder 2 is higher than refrigeration
The liquid level of agent 7.2 top of cylinder is additionally provided with the pressure protective device for ensuring that cylinder 2 is run under the operating pressure of safety
20th, safety valve 21 and exhaust-valve 22.
The cylinder 2 is equipped with convenient for the liquid-sighting glass 23 of observation internal heat situation and enters for headlamp light
Lens 24；The viewing section 25 of observation 7 liquid level of refrigerant is also useful on the cylinder 2.
2 agglutination,cold test is carried out the worked of the present apparatus is further described with heat exchanging single tube 5 below in conjunction with the accompanying drawings
Journey.
Cooling and Heat Source water pump 41 extracts 69 DEG C of thermostatted water from Cooling and Heat Source water tank 40 first, passes through Cooling and Heat Source circulation waterway three
Logical regulating valve 42 mixes the 61 DEG C of water come out from cold and heat sources pipe 3, adjusts the water temperature into cold and heat sources pipe 3 to 65 DEG C.It is connected to cold
Cold and heat sources pipe 3 in heat-source Cycles water route 4 heated the refrigerant 7 in cylinder 2, steam the refrigerant 7 for having submerged cold and heat sources pipe 3
It sends out as saturated vapor, if necessary to adjust operating mode to overheated gas, the auxiliary heating steam of electric heating tube 9, steam liter can be passed through
It rises to 2 top of cylinder, is cooled down by top heat exchange single tube 5 to be tested, be then condensed into drop, fall to 2 bottom of cylinder, so far
Refrigerant 7 completes the cycle of a heat exchange, and heat then flows back to Cooling and Heat Source water tank by the water in cold and heat sources pipe 3 that refrigerant 7 absorbs
40。
In the Cooling and Heat Source circulation waterway 4 that cold and heat sources pipe 3 connects, Cooling and Heat Source is measured by Cooling and Heat Source circulation waterway flowmeter 43
Water flow measures the water temperature difference of disengaging cold and heat sources pipe 3 by the Cooling and Heat Source temperature point 44 at 3 inlet and outlet nozzle of cold and heat sources pipe, from
And calculate the heat exchange amount of cold and heat sources pipe 3.Computational methods are exactly the formula of common Q=c.m. △ t, wherein alphabetical meaning：Q is changed
Heat；C, the specific heat capacity of water；M, water flow；△ t flow through heat exchanger tube (cold and heat sources pipe 3 or heat exchange single tube 5) front and rear temperature of heat exchange
Spend difference；
On the other hand, it as shown in Fig. 2, switching handpiece Water Chilling Units make handpiece Water Chilling Units 80 provide low-temperature receiver for test water tank 60, adjusts
60 water temperature of water tank is tested to 27 DEG C of constant temperature；Then, the test water pump 61 in test loop water route 6 extracts 27 from test water tank 60
DEG C thermostatted water, mix 35 DEG C of the water come out from heat exchange single tube 5 to be tested by testing water route three-way control valve 62, adjust
To enter 30 DEG C of water of heat exchange single tube 5, flowing water has taken away the heat of 7 steam of refrigerant in cylinder 2 in the single tube 5 that exchanges heat
Amount flows back to test water tank 60 after heating.
It exchanges heat in the test loop water route 6 that single tube 5 connects, water flow is measured by test loop water route flowmeter 63, is led to
The water temperature difference that test heat exchange single tube temperature point 64 measures disengaging heat exchange single tube 5 is crossed, so as to calculate the heat exchange amount of heat exchange single tube 5.
Under normal circumstances, heat exchange single tube 5 cool down 7 heat of refrigerant, be exactly electric heating tube 9 heat and cold and heat sources pipe 3 heat it
With.
3 experiment is evaporated the worked of the present apparatus is further described with heat exchanging single tube 5 below in conjunction with the accompanying drawings
Journey.
Cooling and Heat Source water pump 41 extracts 2 DEG C of thermostatted water from Cooling and Heat Source water tank 40 first, passes through Cooling and Heat Source circulation waterway three
Logical regulating valve 42 mixes the 6.5 DEG C of water come out from cold and heat sources pipe 3, adjusts the water temperature into cold and heat sources pipe 3 to 5.5 DEG C.It is connected to
Cold and heat sources pipe 3 in Cooling and Heat Source circulation waterway 4 cools the refrigerant 7 in cylinder 2, makes the refrigerant 7 heated by the single tube 5 that exchanges heat
It is condensed into saturation refrigerant liquid.
Heat exchange single tube 5 is immersed in refrigerant 7, and the inflow temperature of heat exchange single tube 5 is 12 DEG C, and heat exchange single tube 5 will freeze
7 heating evaporation of agent, the steam ascension of refrigerant 7 are cooled down by the cold and heat sources pipe 3 on top to 2 top of cylinder, are then condensed into liquid
Drop, falls to 2 bottom of cylinder, and so far refrigerant 7 completes the cycle of a heat exchange.
In the Cooling and Heat Source circulation waterway 4 that cold and heat sources pipe 3 connects, Cooling and Heat Source is measured by Cooling and Heat Source circulation waterway flowmeter 43
Water flow measures the water temperature difference of disengaging cold and heat sources pipe 3 by the Cooling and Heat Source temperature point 44 at 3 inlet and outlet nozzle of cold and heat sources pipe, from
And calculate the heat exchange amount of cold and heat sources pipe 3.Computational methods are exactly the formula of common Q=c.m. △ t, wherein alphabetical meaning：Q is changed
Heat；C, the specific heat capacity of water；M, water flow；△ t flow through heat exchanger tube (cold and heat sources pipe 3 or heat exchange single tube 5) front and rear temperature of heat exchange
Spend difference；
On the other hand, it is cold as shown in figure 3, switching handpiece Water Chilling Units make handpiece Water Chilling Units 80 provide low-temperature receiver for Cooling and Heat Source water tank 40
40 water temperature of heat source water tank is to 2 DEG C of constant temperature；Then, Cooling and Heat Source water pump 41 extracts 2 DEG C of thermostatted water from Cooling and Heat Source water tank 40, passes through
Cooling and Heat Source circulation waterway three-way control valve 42 mixes 6.5 DEG C of the water come out from cold and heat sources pipe 3, is adjusted to enter cold and heat sources pipe 3
5.5 DEG C of water, flowing water cools the steam of refrigerant 7 in cylinder 2 in cold and heat sources pipe 3, is flowed back to after water heating cold and hot
Source water tank 40.
It exchanges heat in the test loop water route 6 that single tube 5 connects, water flow is measured by test loop water route flowmeter 63, is led to
The water temperature difference that test heat exchange single tube temperature point 64 measures disengaging heat exchange single tube 5 is crossed, so as to calculate the heat exchange amount of heat exchange single tube 5.
Under normal circumstances, 7 heat of refrigerant that heat exchange single tube 5 heats is exactly the heat exchange amount of cold and heat sources pipe 3.
During the test, Cooling and Heat Source pressure difference measuring point 45, heat exchange single tube pressure difference measuring point 65 measure cold and heat sources pipe 3, change respectively
The water resistance of hot single tube 5；So as to measure the water resistance of heat exchange single tube 5, the application for single tube provides the examination in terms of on-way resistance
Test foundation.It is useful for providing the Cooling and Heat Source water tank electrical heating of the water tank heat inside Cooling and Heat Source water tank 40 and test water tank 60 respectively
Device 400 and test water tank electric heater 600.There are a handpiece Water Chilling Units 80 simultaneously, by the switching of valve group, handpiece Water Chilling Units 80 are divided
Can not be that Cooling and Heat Source water tank 40 or test water tank 60 provide low-temperature receiver.When carrying out agglutination,cold test, handpiece Water Chilling Units 80 switch such as Fig. 4 institutes
Show.There are refrigerant three-way control valve 82 and refrigerant water pump 81 on refrigerant circulation water route 8.Refrigerant three-way control valve 82, which is adjusted, enters cold water
The water temperature of unit 80 is in rational range.
2 top of cylinder is provided with pressure protective device 20, safety valve 21 and exhaust-valve 22, for ensuring that cylinder 2 is being pacified
It is run under full operating pressure, when the pressure anomaly in cylinder 2, pressure protective device 20 generally first passes through warning device prompting
Operating personnel pay attention to.If pressure still persistently increases, pressure value reaches the working value of safety valve 21, then safety valve 21 can be rapid
Protection is played the role of in pressure release.Exhaust-valve 22 on cylinder is mainly used for discharging the large quantity of air in cylinder 2, it is ensured that be not free
Gas is mixed into internal refrigerant 7.
Above the cylinder 2 and side is useful for the liquid-sighting glass 23 of observation internal heat situation, and headlamp light passes through saturating
Mirror 24 is irradiated inside cylinder 2, facilitates the heat exchange situation inside observation.The liquid of 25 personal observations' refrigerant 7 easy to operation of viewing section
Position, does not contact with electric heating tube 9.
It should be noted that the heating amount that the electric heating tube 9 in the present embodiment middle cylinder body 2 reheats refrigerant 7
Original papers can be waited to carry out step-less adjustment by silicon-controlled, pass through the mistake for the refrigerant 7 that inner barrel temperature point 10 determines to need
Temperature.Compared to the single tube condensing heat-exchange experiment that saturation state can only be carried out in tradition heat exchange single column run device, widen significantly
The range of device debugging condensing condition has opened up broader test condition for the heat exchange condensation test of single tube 5.
Cylinder 2 in the present invention is simple in structure, and volume very little, thermal capacity is limited, so itself and extraneous leaking heat are seldom,
So as to provide good prerequisite for the test of small heat exchange amount.It is demonstrated experimentally that by taking refrigerant R22 as an example, can stablize high-precision
Spend the single tube heat exchange amount about 1.2kW measured.
If in conclusion the experimental rig of the refrigeration air-conditioner product using the present invention, condensation list can be covered by adjusting operating mode
The saturation of pipe and overheat heat-exchanging state, lower limit heat exchange amount minimum can arrive 1.2kW or so, comprehensive other factors, it is demonstrated experimentally that changing
The adjustable span of heat has reached 30 times or so.The applicability of experimental rig can be greatly promoted, is also reduced into indirectly
This input.
Claims (10)
1. a kind of heat exchange single tube performance test apparatus, including being mounted on the cylinder (2) sealed on stent (1), the cylinder (2) is interior
Also added with refrigerant (7), it is characterised in that：Cold and heat sources pipe (3) and sealing are provided in the cylinder (2) in cylinder (2)
Heat exchange single tube (5)；The cold and heat sources pipe (3) is externally connected with Cooling and Heat Source circulation waterway (4) across cylinder (2), and the heat exchange is single
Pipe (5) is externally connected with test loop water route (6) across cylinder (2)；The cylinder (2) can be located at along cylinder (2) axial rotation
Heat exchanging single tube (5) is formed on stent (1) can be evaporated experiment and the cooperation of agglutination,cold test.
2. heat exchange single tube performance test apparatus according to claim 1, it is characterised in that：The Cooling and Heat Source circulation waterway
(4) including Cooling and Heat Source water tank (40), Cooling and Heat Source water pump (41), the Cooling and Heat Source circulation waterway for being located at Cooling and Heat Source water pump (41) inlet
Three-way control valve (42) and the Cooling and Heat Source circulation waterway flowmeter (43) for being located at Cooling and Heat Source water pump (41) exit；It is described cold and hot
Source circulation waterway three-way control valve (42) one is logical to be connected with Cooling and Heat Source water tank (40), and one leads to and is connected with Cooling and Heat Source water pump (41), separately
One logical is connected with the outlet pipe of cold and heat sources pipe (3)；
The test loop water route (6) is including testing water tank (60), test water pump (61), being located at test water pump (61) inlet
Test loop water route three-way control valve (62) and the test loop water route flowmeter (63) for being located at test water pump (61) exit；
Test loop water route three-way control valve (62) one is logical to be connected with test water tank (60), and one leads to and is connected with testing water pump (61),
Another logical outlet pipe with heat exchange single tube (5) is connected.
3. heat exchange single tube performance test apparatus according to claim 1 or 2, it is characterised in that：The cold and heat sources pipe (3) is logical
Cross imported valve (30) and outlet valve (31) control and the break-make of Cooling and Heat Source circulation waterway (4)；The heat exchange single tube (5) passes through
Imported valve (50) and outlet valve (51) control and the break-make in test loop water route (6).
4. heat exchange single tube performance test apparatus according to claim 2, it is characterised in that：The Cooling and Heat Source water pump (41) from
Thermostatted water is extracted in Cooling and Heat Source water tank (40), inflow temperature is adjusted by Cooling and Heat Source water route three-way control valve (42), by cold and hot
Source circulation waterway flowmeter (43) measures circulating water flow；The test water pump (61) extracts constant temperature from test water tank (60)
Water adjusts inflow temperature by test loop water route three-way control valve (62), is measured by test loop water route flowmeter (63)
Circulating water flow.
5. heat exchange single tube performance test apparatus according to claim 2, it is characterised in that：It is connected to Cooling and Heat Source circulation waterway
(4) Cooling and Heat Source temperature point (44) and Cooling and Heat Source pressure difference measuring point are equipped on the import and export pipeline of the cold and heat sources pipe (3) on
(45), it is connected on the import and export pipeline of the heat exchange single tube (5) on test loop water route (6) and is equipped with heat exchange single-pipe temp
Spend measuring point (64) and heat exchange single tube pressure difference measuring point (65).
6. heat exchange single tube performance test apparatus according to claim 4 or 5, it is characterised in that：The Cooling and Heat Source water tank
(40) Cooling and Heat Source water tank electric heater (400) is equipped in, test water tank electric heater is equipped in the test water tank (60)
(600)；The Cooling and Heat Source circulation waterway (4) is gone here and there with test loop water route (6) by valve group with refrigerant circulation water route (8)
Even, the refrigerant circulation water route (8) enters handpiece Water Chilling Units including handpiece Water Chilling Units (80), refrigerant water pump (81) and for adjusting
(80) the refrigerant three-way control valve (82) of inner cold water water temperature, the switching that the refrigerant circulation water route (8) passes through valve group are respectively
Cooling and Heat Source water tank (40) or test water tank (60) provide cold water source.
7. heat exchange single tube performance test apparatus according to claim 1, it is characterised in that：The heat exchange single tube (5), cold and hot
Source capsule (3) is arranged in an axially parallel mode with cylinder (2).
8. heat exchange single tube performance test apparatus according to claim 1, it is characterised in that：It is also set up in the cylinder (2)
There is electric heating tube (9), installation position of the electric heating tube (9) in cylinder (2) is higher than the liquid level of refrigerant (7).
9. heat exchange single tube performance test apparatus according to claim 1, it is characterised in that：Cylinder (2) top is also set
It is equipped with the pressure protective device (20) for ensuring cylinder (2) and being run under the operating pressure of safety, safety valve (21) and exhaust-valve
(22)。
10. heat exchange single tube performance test apparatus according to claim 1, it is characterised in that：The cylinder (2) is equipped with just
Liquid-sighting glass (23) in observation internal heat situation and the lens (24) for the entrance of headlamp light；On the cylinder (2)
Also it is useful for the viewing section (25) of observation refrigerant (7) liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021574.6A CN105699060B (en) | 2016-01-11 | 2016-01-11 | Exchange heat single tube performance test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021574.6A CN105699060B (en) | 2016-01-11 | 2016-01-11 | Exchange heat single tube performance test apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105699060A CN105699060A (en) | 2016-06-22 |
| CN105699060B true CN105699060B (en) | 2018-06-29 |
Family
ID=56227262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610021574.6A Active CN105699060B (en) | 2016-01-11 | 2016-01-11 | Exchange heat single tube performance test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105699060B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060036169A (en) * | 2004-10-25 | 2006-04-28 | 조동현 | Experimental device to measure condensing and boiling heat transfer coefficient of tubes |
| CN101852749B (en) * | 2009-04-03 | 2012-02-08 | 李蔚 | All-in-on device for evaporation/condensation heat transmission testing in micro pipe and testing method thereof |
| CN202522531U (en) * | 2012-04-09 | 2012-11-07 | 上海创控节能科技有限公司 | Monotube external evaporation and condensation heat transmission performance tester |
| CN203630063U (en) * | 2013-11-25 | 2014-06-04 | 乐金空调(山东)有限公司 | Heat exchanging performance testing device for heat exchanging pipe |
| CN103645207B (en) * | 2013-11-25 | 2016-06-22 | 乐金空调(山东)有限公司 | Heat exchanger tube heat exchange property test device |
| CN103808757A (en) * | 2014-03-05 | 2014-05-21 | 上海理工大学 | Experimental table for testing heat exchange performance of single tube |
-
2016
- 2016-01-11 CN CN201610021574.6A patent/CN105699060B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105699060A (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104297291B (en) | A kind of measure the experimental provision of flow boiling and heat transfer coefficient in refrigerant pipe | |
| CN104534710B (en) | Refrigerator heat exchanger performance test system refrigerant supply unit | |
| CN1987440A (en) | Combining method for multiple thermotechnical complex performance detection test | |
| CN108593328A (en) | A kind of convenient refrigerator heat exchanger performance test system of flow-rate adjustment | |
| CN106932214A (en) | A kind of heat exchanger performance and efficiency test platform | |
| CN103592142A (en) | System for testing heat transfer and resistance characteristics of large-size generating equipment heat exchanger | |
| CN101299000B (en) | Heat exchange tester of ground source heat pump underground heat exchanger | |
| CN205301217U (en) | Intraductal boiling of double pipe heat exchanger / condensation heat transfer performance test platform | |
| CN108956685A (en) | A kind of condensation visual experimental apparatus of steam containing fixed gas of object-oriented | |
| KR101552087B1 (en) | A heat exchanger performance test apparatus for airconditioner | |
| CN208983657U (en) | Heat pump system | |
| CN201293766Y (en) | Inner evaporation and condensation integrated synthesis experimental device for monotube | |
| CN206960129U (en) | A kind of heat exchanger performance and efficiency test platform | |
| CN109470733A (en) | In a kind of achievable steam pipe with the visual experimental provision of out-tubular condensing | |
| CN104374591B (en) | A kind of ability measurement device of electric expansion valve | |
| CN105699060B (en) | Exchange heat single tube performance test apparatus | |
| CN107678462A (en) | Constant speed groove and constant speed groove constant speed cooling system and constant speed groove constant speed cool-down method | |
| CN107246975A (en) | A kind of flow refrigerator with adjustable heat exchanger performance test system | |
| CN108151918A (en) | A kind of calorimeter endurance test apparatus and its test method | |
| CN105606644B (en) | All working condition high precision heat exchange single tube performance test apparatus | |
| CN104374590B (en) | A kind of ability measurement device of four-way change-over valve | |
| CN206930458U (en) | A kind of heat exchanger oil-water test platform | |
| CN105973506A (en) | Cold-hot independent circulation calorimeter durability test device | |
| CN202631348U (en) | Automatic thermostat | |
| CN210982288U (en) | Single-tube in-tube boiling experiment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Co-patentee after: Hefei General Environment Control Technology Co., Ltd. Patentee after: Hefei General Machinery Research Institute Co., Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Co-patentee before: Hefei General Environment Control Technology Co., Ltd. Patentee before: Hefei Universal Machinery Inst. |