CN105699060A - Heat-exchange single tube performance test apparatus - Google Patents
Heat-exchange single tube performance test apparatus Download PDFInfo
- Publication number
- CN105699060A CN105699060A CN201610021574.6A CN201610021574A CN105699060A CN 105699060 A CN105699060 A CN 105699060A CN 201610021574 A CN201610021574 A CN 201610021574A CN 105699060 A CN105699060 A CN 105699060A
- Authority
- CN
- China
- Prior art keywords
- heat
- cooling
- test
- heat source
- single tube
- 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
- 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
Abstract
The invention discloses a heat-exchange single tube performance test apparatus. The apparatus comprises a barrel. A refrigerating fluid is added in the sealed barrel. A cold and heat source pipe and a heat-exchange single tube are arranged in the barrel. The cold and heat source pipe passes through an outer portion of the barrel and is connected to a cold and heat source circulation waterway. The heat-exchange single tube passes through the outer portion of the barrel and is connected to a test circulation waterway. The barrel can be rotatably arranged on a support along an axial direction of the barrel to form cooperation capable of carrying out an evaporation test and a condensation test on the heat-exchange single tube. Inlet and outlet pipelines of the cold and heat source pipe, which are connected to the cold and heat source circulation waterway, are provided with cold and heat source temperature test points and cold and heat source differential pressure test points. Inlet and outlet pipelines of the heat-exchange single tube, which are connected to the test circulation waterway, are provided with heat-exchange single tube temperature test points and heat-exchange single tube differential pressure test points. By using the apparatus, the structure is simple, cost is low and operation is stable; a complete test condition can be simulated; simultaneously, test precision is greatly increased compared to the test precision of a traditional apparatus; and accuracy and reliability of the test apparatus are ensured.
Description
Technical field
The invention belongs to thermal test apparatus field, particularly to a kind of heat exchange single tube performance test apparatus。
Background technology
Along with expanding economy, people increasingly focus on the comfort level of living environment, and the use of refrigeration air-conditioner is also more and more extensive。China, while greatly developing Air Conditioning Industry acquisition economic benefit, is also faced with its jumbo consumption to the energy。According to statistics, being 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 about the 30% of society's total power consumption。How to alleviate the power tense situation that huge refrigeration air-conditioner energy consumption causes, become the focus that people pay close attention to。Within air-conditioning systems, heat exchanger mainly includes vaporizer and condenser, and their heat exchange efficiency is directly connected to the power consumption of air-conditioning。Heat exchanger single tube is as the elementary cell of vaporizer and condenser, and the heat transfer effect of vaporizer and condenser is played important impact by the height of its coefficient of heat transfer。In order to help refrigeration producer to study the performance how improving single tube better, it is important that heat exchange single tube performance test apparatus just seems very。
Traditional heat exchange single column run device, is commonly made to the form of heat exchange container。As shown in Figure 8, generally it is made up of upper and lower two cylinders。Connect by connecting tube big as far as possible between two cylinders, for the circulation of cold-producing medium, but: the 1. connecting tube mouth of pipe place of two cylinders, cold-producing medium circulation is more, and other are not or not the place at mouth of pipe place, and cold-producing medium circulation can be less, the situations such as heat exchange is uneven, and Work condition analogue is untrue can be caused；2. two cylinders are sufficiently bulky, and manufacture difficulty is big, can strengthen workload during test operation, reduce work efficiency, increase cost of labor；3. container machined surface is many, can increase the possibility of more cold-producing medium leak source, improve the workload of regular maintenance；4. tradition cylinder is an airtight container, and internal cold-producing medium is saturation in theory all the time, so the heat exchange situation can only simulated under saturation, makes the condition range that experimental performance is tested be restricted；5. tradition cylinder is relatively big due to volume, causes cylinder leakage heat more, so the accuracy of test compares is difficult to ensure card。
Summary of the invention
The present invention is in order to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of heat exchange single tube performance test apparatus, this apparatus structure is simple, less costly, stable, and can simulate more complete measurement condition；Measuring accuracy is greatly improved than conventional apparatus simultaneously, it is ensured that the accuracy of this assay device and reliability。
For achieving the above object, present invention employs techniques below scheme:
A kind of heat exchange single tube performance test apparatus, including the cylinder of rack-mount sealing, also added with cold-producing medium in described cylinder, is provided with cold and heat sources pipe and the sealing heat exchange single tube in cylinder in described cylinder；Described cold and heat sources pipe is externally connected with Cooling and Heat Source circulation waterway through cylinder, and described heat exchange single tube is externally connected with test loop water route through cylinder；Described cylinder axially can be located at along cylinder on support rotationally and constitute heat exchanging single tube can be evaporated the cooperation of test and agglutination,cold test。
Preferably, described Cooling and Heat Source circulation waterway includes Cooling and Heat Source water tank, Cooling and Heat Source water pump, is located at the Cooling and Heat Source circulation waterway three-way control valve at Cooling and Heat Source pump entrance place and is located at the Cooling and Heat Source circulation waterway effusion meter of Cooling and Heat Source pump outlet；Described Cooling and Heat Source circulation waterway three-way control valve one is logical to be connected with Cooling and Heat Source water tank, and one logical is connected with Cooling and Heat Source water pump, and another leads to and is connected with the outlet pipe of cold and heat sources pipe；
Described test loop water route includes test water tank, test water pump, is located at the test loop water route three-way control valve at test pump entrance place and is located at the test loop water route effusion meter of test pump outlet；Described test loop water route three-way control valve one is logical to be connected with test water tank, and one logical is connected with test water pump, and another leads to and is connected with the outlet pipe of heat exchange single tube。
Further, described cold and heat sources pipe controls the break-make with Cooling and Heat Source circulation waterway by imported valve and outlet valve；Described heat exchange single tube controls the break-make with test loop water route by imported valve and outlet valve。
Further, described Cooling and Heat Source water pump extracts thermostatted water from Cooling and Heat Source water tank, regulates inflow temperature by Cooling and Heat Source water route three-way control valve, by Cooling and Heat Source circulation waterway flowmeter survey circulating water flow；Described test water pump extracts thermostatted water from test water tank, regulates inflow temperature by test loop water route three-way control valve, by test loop water route flowmeter survey circulating water flow。
Further, the import and export pipeline of the described cold and heat sources pipe being connected on Cooling and Heat Source circulation waterway is equipped with Cooling and Heat Source temperature point and Cooling and Heat Source pressure reduction measuring point, is connected on the import and export pipeline of the described 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 reduction measuring point。
Further, in described Cooling and Heat Source water tank, it is provided with Cooling and Heat Source water tank electric heater, in described test water tank, is provided with test water tank electric heater；Described Cooling and Heat Source circulation waterway is all contacted with refrigerant circulation water route by valve group with test loop water route, described refrigerant circulation water route includes handpiece Water Chilling Units, coolant water pump and for regulating the coolant three-way control valve entering handpiece Water Chilling Units inner cold water water temperature, and described refrigerant circulation water route provides cold water source by the switching respectively Cooling and Heat Source water tank of valve group or test water tank。
Preferably, described heat exchange single tube, cold and heat sources pipe are all arranged in an axially parallel mode with cylinder。
Preferably, being additionally provided with electric heating tube in described cylinder, the described electric heating tube position that arranges in cylinder is higher than the liquid level of cold-producing medium。
Preferably, described cylinder top is additionally provided with the pressure protective device, relief valve and the exhaust-valve that guarantee cylinder and run under the operating pressure of safety。
Preferably, described cylinder is provided with the liquid-sighting glass being easy to observe internal heat situation and the lens for the entrance of illuminating lamp light；Described cylinder also has the viewing section for observing refrigerant level。
The beneficial effects of the present invention is:
1), the present invention be only provided with a cylinder, cylinder is provided with cold and heat sources pipe, is also provided with and is test for heat exchange single tube, cold and heat sources pipe is externally connected with Cooling and Heat Source circulation waterway, and described heat exchange single tube is externally connected with test loop water route；By the temperature point of import and export on Cooling and Heat Source circulation waterway and test loop water route, pressure reduction measuring point, flow measuring point being calculated jointly the heat exchange amount of heat exchange single tube, namely complete the performance test of heat exchanging single tube。
Support can drive cylinder to carry out axial rotation in the present invention, by the axially different rotational orientation of cylinder, the relative position of cold and heat sources pipe and heat exchange single tube can be switched easily, and then realize evaporation tube test or the condensing tube test of this device heat exchanging single tube, the very convenient switching that can complete functionally in single cylinder, so adapter is less, installs simpler, substantially increase the efficiency of test job。
2), the auxiliary heating cylinder inner refrigerant electric heating tube to hypersaturated state it is additionally provided with in cylinder of the present invention, under normal circumstances, the cold-producing medium heat of heat exchange single tube cooling, it is simply that the heat of electric heating tube and the heat sum of cold and heat sources pipe。The present invention, compared to the single tube condensing heat-exchange test that can only carry out saturation in tradition heat exchange single column run device, has widened the scope of device debugging condensing condition significantly, has opened up broader test condition for single tube condensation test。
3), in the present invention, cold-producing medium is heated into saturated vapor through cold and heat sources pipe, then through becoming superheated steam after electric heater for heating, when steam upwards ascension is to cylinder top, release heat cools down as saturated liquid to the water in heat exchange single tube and then cold-producing medium, liquid drops to cylinder body bottom, completes the circulation of cold-producing medium。Whole heat transfer process carries out in single cylinder container, and cylinder volume is only small, and thermal capacity is limited, heat exchanging is tested, it is meant that less leakage heat, less error, measuring accuracy is enhanced, and enables the invention to carry out the heating of high-precision tiny flow quantity or cooling test；Additionally, mono-tube design farthest simulates the heat-exchanging state of actual case tube heat exchanger, more ensure that the accuracy of this assay device and reliability。
4), the top of middle cylinder body of the present invention be provided with pressure protective device, relief valve and exhaust-valve, when pressure anomaly in cylinder, pressure protective device generally first passes through alarm device and reminds operator to note。If pressure still continues to increase, force value reaches the working value of relief valve, then relief valve can rapid pressure release, play the effect of protection。Exhaust-valve on cylinder, is mainly used in discharging the large quantity of air in cylinder, so that it is guaranteed that test precisely, also can guarantee that pressure indicator is correct, is further ensured that the safe and reliable of cylinder。
5), cylinder of the present invention is provided with the liquid-sighting glass being easy to observe internal heat situation, and illuminating lamp light is by lens lighting inner barrel, the convenient heat exchange situation observing inner barrel, this device is additionally provided with the viewing section being easy to observe refrigerant level, greatly facilitating record and the analysis of the actual heat exchange situation of testing crew heat exchanging single tube, the reliability for data provides foundation。
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention。
Fig. 2 is the structural representation that heat exchanging single tube of the present invention carries out agglutination,cold test。
Fig. 3 is the structural representation that heat exchanging single tube of the present invention is evaporated test。
Fig. 4 is the schematic diagram of Fig. 2 cylinder external structure。
Fig. 5 is the side-looking schematic diagram of Fig. 2。
Fig. 6 is the schematic diagram of Fig. 3 cylinder external structure。
Fig. 7 is the side-looking schematic diagram of Fig. 3。
Fig. 8 is traditional heat exchange single column run device。
In figure, the implication of label symbol is as follows:
1-support
2-cylinder 20-pressure protective device 21-relief valve 22-exhaust-valve 23-liquid-sighting glass
24-lens 25-viewing section
3-cold and heat sources pipe 30-Cooling and Heat Source imported valve 31-Cooling and Heat Source outlet valve
4-Cooling and Heat Source circulation waterway 40-Cooling and Heat Source water tank 41-Cooling and Heat Source water pump
42-Cooling and Heat Source circulation waterway three-way control valve 400-Cooling and Heat Source water tank electric heater
43-Cooling and Heat Source circulation waterway effusion meter 44-Cooling and Heat Source temperature point 45-Cooling and Heat Source pressure reduction measuring point
5-heat exchange single tube 50-heat exchange single tube imported valve 51-heat exchange single tube outlet valve
6-test loop water route 60-tests water tank 600-and tests water tank electric heater
61-tests three-way control valve 63-test loop water route, water pump 62-test loop water route effusion meter
64-heat exchange single tube temperature point 65-heat exchange single tube pressure reduction measuring point
7-cold-producing medium Cooling and Heat Source water
8-refrigerant circulation water route 80-handpiece Water Chilling Units 81-coolant water pump 82-coolant three-way control valve
9-electric heating tube
10-inner barrel temperature point
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
As it is shown in figure 1, a kind of heat exchange single tube performance test apparatus, including the cylinder 2 being arranged on support 1 to seal, also added with cold-producing medium 7 in the cylinder 2 of described sealing, described cylinder 2 is provided with cold and heat sources pipe 3 and the sealing heat exchange single tube 5 in cylinder 2；Described cold and heat sources pipe 3 is externally connected with Cooling and Heat Source circulation waterway 4 through cylinder 2, and described heat exchange single tube 5 is externally connected with test loop water route 6 through cylinder 2；Described cylinder 2 can be located on support 1 constitute heat exchanging single tube 5 along cylinder 2 axial rotation can be evaporated the cooperation of test and agglutination,cold test。As shown in Figure 6,7, during agglutination,cold test, the position of cylinder 2 opposite brackets 1 is as shown in Figure 4,5 to be evaporated the position of cylinder 2 opposite brackets 1 during test。Described heat exchange single tube 5, cold and heat sources pipe 3 are all arranged in an axially parallel mode with cylinder 2。
Described 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 the Cooling and Heat Source circulation waterway three-way control valve 42 of Cooling and Heat Source water pump 41 porch and is located at the Cooling and Heat Source circulation waterway effusion meter 43 in Cooling and Heat Source water pump 41 exit；Described 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, and one logical is connected with Cooling and Heat Source water pump 41, and another leads to and is connected with cold and heat sources pipe 3 outlet pipe；
Described test loop water route 6 includes test water tank 60, test water pump 61, is located at the test loop water route three-way control valve 62 of test water pump 61 porch and is located at the test loop water route effusion meter 63 in test water pump 61 exit；Described test loop water route three-way control valve 62 1 is logical to be connected with test water tank 60, and one logical is connected with test water pump 61, and another leads to and is connected with heat exchange single tube 5 outlet pipe。
Described cold and heat sources pipe 3 realizes the break-make with Cooling and Heat Source circulation waterway 4 by Cooling and Heat Source imported valve 30 and Cooling and Heat Source outlet valve 31；Described heat exchange single tube 5 realizes the break-make with test loop water route 6 by heat exchange single tube imported valve 50 and heat exchange single tube outlet valve 51。
Described Cooling and Heat Source water pump 41 extracts thermostatted water from Cooling and Heat Source water tank 40, regulates inflow temperature by Cooling and Heat Source water route three-way control valve 42, measures circulating water flow by Cooling and Heat Source circulation waterway effusion meter 43；Described test water pump 61 extracts thermostatted water from test water tank 60, regulates inflow temperature by test loop water route three-way control valve 62, measures circulating water flow by test loop water route effusion meter 63。
The import and export pipeline of the described cold and heat sources pipe 3 being connected on Cooling and Heat Source circulation waterway 4 is equipped with Cooling and Heat Source temperature point 44 and Cooling and Heat Source pressure reduction measuring point 45, is connected on the import and export pipeline of the described heat exchange single tube 5 on test loop water route 6 and is equipped with heat exchange single tube temperature point 64 and heat exchange single tube pressure reduction measuring point 65。
It is provided with Cooling and Heat Source water tank electric heater 400 in described Cooling and Heat Source water tank 40, in described test water tank 60, is provided with test water tank electric heater 600；Described Cooling and Heat Source circulation waterway 4 is all contacted with refrigerant circulation water route 8 by valve group with test loop water route 6, described refrigerant circulation water route 8 include handpiece Water Chilling Units 80, coolant water pump 81 and for regulate enter handpiece Water Chilling Units 80 inner cold water water temperature coolant three-way control valve 82, described refrigerant circulation water route 8 provides cold water source by switching respectively Cooling and Heat Source water tank 40 or the test water tank 60 of valve group, and then for being evaporated the test water temperature that test and agglutination,cold test provide required respectively。When carrying out agglutination,cold test, the switching connected mode of valve group is as in figure 2 it is shown, when being evaporated testing, the switching connected mode of valve group is as shown in Figure 3。
Being additionally provided with electric heating tube 9 in described cylinder 2, the described electric heating tube 9 position that arranges in cylinder 2 is higher than the liquid level of cold-producing medium 7。Described cylinder 2 top is additionally provided with the pressure protective device 20, relief valve 21 and the exhaust-valve 22 that guarantee cylinder 2 and run under the operating pressure of safety。
Described cylinder 2 is provided with the liquid-sighting glass 23 being easy to observe internal heat situation and the lens 24 for the entrance of illuminating lamp light；Described cylinder 2 also has the viewing section 25 for observing cold-producing medium 7 liquid level。
Agglutination,cold test is carried out to further describe the work process of this device with heat exchanging single tube 5 below in conjunction with accompanying drawing 2。
First Cooling and Heat Source water pump 41 extracts the thermostatted water of 69 DEG C from Cooling and Heat Source water tank 40, is mixed from cold and heat sources pipe 3 61 DEG C of water out by Cooling and Heat Source circulation waterway three-way control valve 42, regulates the water temperature entering cold and heat sources pipe 3 to 65 DEG C。The cold and heat sources pipe 3 being connected in Cooling and Heat Source circulation waterway 4 heated the cold-producing medium 7 in cylinder 2, the cold-producing medium 7 making submergence cold and heat sources pipe 3 is evaporated to saturated vapor, if needing to regulate operating mode to overheated gas, vapours can be added through electric heating tube 9 auxiliary, steam ascension is to cylinder 2 top, the heat exchange single tube 5 to be tested by top cools down, then drop it is condensed into, drop to bottom cylinder 2, so far cold-producing medium 7 completes the circulation of a heat exchange, and the water in the cold and heat sources pipe 3 that heat is absorbed by cold-producing medium 7 then flows back to Cooling and Heat Source water tank 40。
In the Cooling and Heat Source circulation waterway 4 that cold and heat sources pipe 3 connects, Cooling and Heat Source discharge is measured by Cooling and Heat Source circulation waterway effusion meter 43, the Cooling and Heat Source temperature point 44 being passed in and out mouth of pipe place by cold and heat sources pipe 3 measures the water temperature difference passing in and out cold and heat sources pipe 3, thus calculating the heat exchange amount of cold and heat sources pipe 3。Computational methods are exactly the formula of conventional Q=c.m. △ t, wherein letter implication: Q, heat exchange amount；C, specific heat of water holds；M, discharge；△ t, flows through the temperature gap before and after heat exchanger tube (cold and heat sources pipe 3 or heat exchange single tube 5) heat exchange；
On the other hand, as in figure 2 it is shown, switching handpiece Water Chilling Units makes handpiece Water Chilling Units 80 provide low-temperature receiver for test water tank 60, regulate test water tank 60 water temperature to constant temperature 27 DEG C；Then, test water pump 61 in test loop water route 6 extracts the thermostatted water of 27 DEG C from test water tank 60, the water from heat exchange single tube 5 to be tested out 35 DEG C is mixed by testing water route three-way control valve 62, it is adjusted to the water of 30 DEG C that enter heat exchange single tube 5, in heat exchange single tube 5, the water of flowing has taken away the heat of cold-producing medium 7 steam in cylinder 2, flows back to test water tank 60 after intensification。
In the test loop water route 6 that heat exchange single tube 5 connects, measuring discharge by test loop water route effusion meter 63, measuring the water temperature difference of turnover heat exchange single tube 5 by testing heat exchange single tube temperature point 64, thus calculating the heat exchange amount of heat exchange single tube 5。Under normal circumstances, cold-producing medium 7 heat of heat exchange single tube 5 cooling, it is simply that the heat of electric heating tube 9 and the heat sum of cold and heat sources pipe 3。
It is evaporated testing the work process further describing this device with heat exchanging single tube 5 below in conjunction with accompanying drawing 3。
First Cooling and Heat Source water pump 41 extracts the thermostatted water of 2 DEG C from Cooling and Heat Source water tank 40, is mixed from cold and heat sources pipe 3 6.5 DEG C of water out by Cooling and Heat Source circulation waterway three-way control valve 42, regulates the water temperature entering cold and heat sources pipe 3 to 5.5 DEG C。The cold and heat sources pipe 3 being connected in Cooling and Heat Source circulation waterway 4 cools the cold-producing medium 7 in cylinder 2, makes the cold-producing medium 7 heated by heat exchange single tube 5 be condensed into saturated refrigerant liquid。
Heat exchange single tube 5 is immersed in cold-producing medium 7, the inflow temperature of heat exchange single tube 5 is 12 DEG C, heat exchange single tube 5 is by cold-producing medium 7 heating evaporation, the steam ascension of cold-producing medium 7 is to cylinder 2 top, cooled down by the cold and heat sources pipe 3 on top, then being condensed into drop, drop to bottom cylinder 2, so far cold-producing medium 7 completes the circulation 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 discharge is measured by Cooling and Heat Source circulation waterway effusion meter 43, the Cooling and Heat Source temperature point 44 being passed in and out mouth of pipe place by cold and heat sources pipe 3 measures the water temperature difference passing in and out cold and heat sources pipe 3, thus calculating the heat exchange amount of cold and heat sources pipe 3。Computational methods are exactly the formula of conventional Q=c.m. △ t, wherein letter implication: Q, heat exchange amount；C, specific heat of water holds；M, discharge；△ t, flows through the temperature gap before and after heat exchanger tube (cold and heat sources pipe 3 or heat exchange single tube 5) heat exchange；
On the other hand, as it is shown on figure 3, switching handpiece Water Chilling Units makes handpiece Water Chilling Units 80 provide low-temperature receiver for Cooling and Heat Source water tank 40, Cooling and Heat Source water tank 40 water temperature is to constant temperature 2 DEG C；Then, Cooling and Heat Source water pump 41 extracts the thermostatted water of 2 DEG C from Cooling and Heat Source water tank 40, the water from cold and heat sources pipe 3 out 6.5 DEG C is mixed by Cooling and Heat Source circulation waterway three-way control valve 42, it is adjusted to the water of 5.5 DEG C that enter cold and heat sources pipe 3, in cold and heat sources pipe 3, the water of flowing cools the steam of cold-producing medium 7 in cylinder 2, and water flows back to Cooling and Heat Source water tank 40 after heating up。
In the test loop water route 6 that heat exchange single tube 5 connects, measuring discharge by test loop water route effusion meter 63, measuring the water temperature difference of turnover heat exchange single tube 5 by testing heat exchange single tube temperature point 64, thus calculating the heat exchange amount of heat exchange single tube 5。Under normal circumstances, cold-producing medium 7 heat of heat exchange single tube 5 heating, it is simply that the heat exchange amount of cold and heat sources pipe 3。
In test process, Cooling and Heat Source pressure reduction measuring point 45, heat exchange single tube pressure reduction measuring point 65 measure the water resistance of cold and heat sources pipe 3, heat exchange single tube 5 respectively；It is thus possible to measure the water resistance of heat exchange single tube 5, for the test basis of the application offer on-way resistance aspect of single tube。Cooling and Heat Source water tank 40 and internal Cooling and Heat Source water tank electric heater 400 and the test water tank electric heater 600 having respectively for providing this water tank heat of test water tank 60。Having a handpiece Water Chilling Units 80, by the switching of valve group, handpiece Water Chilling Units 80 can provide low-temperature receiver for Cooling and Heat Source water tank 40 or test water tank 60 respectively simultaneously。When carrying out agglutination,cold test, handpiece Water Chilling Units 80 switches as shown in Figure 4。Refrigerant circulation water route 8 has coolant three-way control valve 82 and coolant water pump 81。Coolant three-way control valve 82 regulates the water temperature entering handpiece Water Chilling Units 80 in rational scope。
Cylinder 2 top is provided with pressure protective device 20, relief valve 21 and exhaust-valve 22, and for guaranteeing that cylinder 2 runs under the operating pressure of safety, when pressure anomaly in cylinder 2, pressure protective device 20 generally first passes through alarm device prompting operator and notes。If pressure still continues to increase, force value reaches the working value of relief valve 21, then the rapid pressure release of relief valve 21 meeting, plays the effect of protection。Exhaust-valve 22 on cylinder, is mainly used in discharging the large quantity of air in cylinder 2, it is ensured that do not have in the cold-producing medium 7 within inclusion of air。
There is the liquid-sighting glass 23 for observing internal heat situation above described cylinder 2 and side, and it is internal that illuminating lamp rays pass through lens 24 irradiates cylinder 2, the heat exchange situation within convenient observation。Viewing section 25 is easy to operator and is observed the liquid level of cold-producing medium 7, does not contact with electric heating tube 9。
It should be noted that, the electric heating tube 9 in the present embodiment middle cylinder body 2 cold-producing medium 7 is reheated add heat and can carry out step-less adjustment by original papers such as controllable silicons, determined the degree of superheat of the cold-producing medium 7 of needs by inner barrel temperature point 10。Compared to the single tube condensing heat-exchange test that can only carry out saturation in tradition heat exchange single column run device, significantly widen the scope of device debugging condensing condition, open up broader test condition for heat exchange single tube 5 condensation test。
Cylinder 2 simple in construction in the present invention, volume is only small, and thermal capacity is limited, so itself and extraneous leaking heat are little, thus providing good prerequisite for the little heat amount test that changes。It is demonstrated experimentally that for cold-producing medium R22, it is possible to the single tube heat exchange amount stablizing high-acruracy survey is about 1.2kW。
In sum, if using the assay device of the refrigeration air-conditioner product of the present invention, regulating operating mode and can cover the saturated and overheated heat-exchanging state of condensation single tube, lower limit heat exchange amount can be minimum to about 1.2kW, other factors comprehensive, it is demonstrated experimentally that the adjustable span of heat exchange amount has reached about 30 times。The suitability of assay device can be greatly promoted, also indirectly reduce cost and put into。
Claims (10)
1. a heat exchange single tube performance test apparatus, including being arranged on the upper cylinder (2) sealed of support (1), also added with cold-producing medium (7) in described cylinder (2), it is characterised in that: described cylinder (2) is provided with cold and heat sources pipe (3) and the sealing heat exchange single tube (5) in cylinder (2)；Described cold and heat sources pipe (3) is externally connected with Cooling and Heat Source circulation waterway (4) through cylinder (2), and described heat exchange single tube (5) is externally connected with test loop water route (6) through cylinder (2)；Described cylinder (2) can be located on support (1) constitute heat exchanging single tube (5) along cylinder (2) axial rotation can be evaporated the cooperation of test and agglutination,cold test。
2. heat exchange single tube performance test apparatus according to claim 1, it is characterised in that: described 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 Cooling and Heat Source circulation waterway three-way control valve (42) of Cooling and Heat Source water pump (41) porch and is located at Cooling and Heat Source circulation waterway effusion meter (43) in Cooling and Heat Source water pump (41) exit；Described Cooling and Heat 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), and another leads to and is connected with the outlet pipe of cold and heat sources pipe (3)；
Described test loop water route (6) includes test water tank (60), test water pump (61), is located at test loop water route three-way control valve (62) of test water pump (61) porch and is located at test loop water route effusion meter (63) in test water pump (61) exit；Described test loop water route three-way control valve (62) one is logical to be connected with test water tank (60), one logical with test water pump (61) and be connected, another leads to and is connected with the outlet pipe of heat exchange single tube (5)。
3. heat exchange single tube performance test apparatus according to claim 1 and 2, it is characterised in that: described cold and heat sources pipe (3) controls the break-make with Cooling and Heat Source circulation waterway (4) by imported valve (30) and outlet valve (31)；Described heat exchange single tube (5) controls the break-make with test loop water route (6) by imported valve (50) and outlet valve (51)。
4. heat exchange single tube performance test apparatus according to claim 2, it is characterized in that: described Cooling and Heat Source water pump (41) extracts thermostatted water from Cooling and Heat Source water tank (40), regulate inflow temperature by Cooling and Heat Source water route three-way control valve (42), measure circulating water flow by Cooling and Heat Source circulation waterway effusion meter (43)；Described test water pump (61) extracts thermostatted water from test water tank (60), regulate inflow temperature by test loop water route three-way control valve (62), measure circulating water flow by test loop water route effusion meter (63)。
5. heat exchange single tube performance test apparatus according to claim 2, it is characterized in that: be connected on the import and export pipeline of the described cold and heat sources pipe (3) on Cooling and Heat Source circulation waterway (4) and be equipped with Cooling and Heat Source temperature point (44) and Cooling and Heat Source pressure reduction measuring point (45), be connected on the import and export pipeline of the described heat exchange single tube (5) on test loop water route (6) and be equipped with heat exchange single tube temperature point (64) and heat exchange single tube pressure reduction measuring point (65)。
6. the heat exchange single tube performance test apparatus according to claim 4 or 5, it is characterized in that: in described Cooling and Heat Source water tank (40), be provided with Cooling and Heat Source water tank electric heater (400), in described test water tank (60), be provided with test water tank electric heater (600)；Described Cooling and Heat Source circulation waterway (4) is all contacted with refrigerant circulation water route (8) by valve group with test loop water route (6), described refrigerant circulation water route (8) includes handpiece Water Chilling Units (80), coolant water pump (81) and is used for regulating the coolant three-way control valve (82) entering handpiece Water Chilling Units (80) inner cold water water temperature, and described refrigerant circulation water route (8) provides cold water source by the switching of valve group respectively Cooling and Heat Source water tank (40) or test water tank (60)。
7. heat exchange single tube performance test apparatus according to claim 1, it is characterised in that: described heat exchange single tube (5), cold and heat sources pipe (3) are all arranged in an axially parallel mode with cylinder (2)。
8. heat exchange single tube performance test apparatus according to claim 1, it is characterized in that: be additionally provided with electric heating tube (9) in described cylinder (2), the described electric heating tube (9) position that arranges in cylinder (2) is higher than the liquid level of cold-producing medium (7)。
9. heat exchange single tube performance test apparatus according to claim 1, it is characterised in that: described cylinder (2) top is additionally provided with the pressure protective device (20), relief valve (21) and the exhaust-valve (22) that guarantee cylinder (2) and run under the operating pressure of safety。
10. heat exchange single tube performance test apparatus according to claim 1, it is characterized in that: described cylinder (2) is provided with the liquid-sighting glass (23) being easy to observe internal heat situation and the lens (24) for the entrance of illuminating lamp light；Described cylinder (2) is upper is also used for observing the viewing section (25) of cold-producing medium (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 true CN105699060A (en) | 2016-06-22 |
| CN105699060B 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) |
Citations (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 |
| CN101852749A (en) * | 2009-04-03 | 2010-10-06 | 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 |
| CN103645207A (en) * | 2013-11-25 | 2014-03-19 | 乐金空调(山东)有限公司 | Heat exchange performance testing device for heat exchange tubes |
| CN103808757A (en) * | 2014-03-05 | 2014-05-21 | 上海理工大学 | Experimental table for testing heat exchange performance of single tube |
| 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 |
-
2016
- 2016-01-11 CN CN201610021574.6A patent/CN105699060B/en active Active
Patent Citations (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 |
| CN101852749A (en) * | 2009-04-03 | 2010-10-06 | 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 |
| CN103645207A (en) * | 2013-11-25 | 2014-03-19 | 乐金空调(山东)有限公司 | Heat exchange performance testing device for heat exchange tubes |
| 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 |
| CN103808757A (en) * | 2014-03-05 | 2014-05-21 | 上海理工大学 | Experimental table for testing heat exchange performance of single tube |
Non-Patent Citations (4)
| Title |
|---|
| 周全 等: "单管换热性能试验装置研制", 《制冷与空调》 * |
| 武永强 等: "新型高效换热管传热性能试验分析", 《制冷与空调》 * |
| 陈建红 等: "强化换热管实验台测控系统的研制", 《制冷与空调》 * |
| 黄承宏 等: "空调与制冷用铜管换热性能测试装置研究—制冷剂与水换热单管性能测试系统", 《流体机械》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105699060B (en) | 2018-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103196945B (en) | Condensation heat-transfer experiment device capable of realizing coupling of natural circulation and forced circulation | |
| CN111220642B (en) | Convection condensation experiment system and method in mixed working medium marangoni condensation pipe | |
| CN104534710B (en) | Refrigerator heat exchanger performance test system refrigerant supply unit | |
| CN108593328A (en) | A kind of convenient refrigerator heat exchanger performance test system of flow-rate adjustment | |
| CN105372082B (en) | A kind of energy-efficient environment-friendly multifunctional intellectuality heat exchanger performance test system | |
| CN104280258B (en) | Comprehensive heat power engineering system used for heat exchanger test | |
| CN105954184B (en) | A kind of flue gas low-temperature corrosion experimental device that realizing multifactor quantitatively regulating and controlling and experimental method | |
| CN104297291B (en) | A kind of measure the experimental provision of flow boiling and heat transfer coefficient in refrigerant pipe | |
| CN1987440A (en) | Combining method for multiple thermotechnical complex performance detection test | |
| CN108956685A (en) | A kind of condensation visual experimental apparatus of steam containing fixed gas of object-oriented | |
| CN103592142A (en) | System for testing heat transfer and resistance characteristics of large-size generating equipment heat exchanger | |
| CN106918622A (en) | Vapor condensation heat-exchange experimental system in a kind of horizontal tube of degree of supercooling wide containing multicomponent gas | |
| KR101552087B1 (en) | A heat exchanger performance test apparatus for airconditioner | |
| CN206321404U (en) | A kind of boiling heat exchanger performance testing device | |
| CN109001249A (en) | A kind of device for evaluating augmentation of heat transfer pipe in-tube condensation characteristic | |
| CN104391002A (en) | Testing device and testing method for simulating condensation of drying cylinder during rotation | |
| CN104458810B (en) | A kind of flue gas engineering acid dewpoint measurement apparatus based on thermodynamics method | |
| CN206132450U (en) | Pure steam generator on -line automatic detection device | |
| CN107246975A (en) | A kind of flow refrigerator with adjustable heat exchanger performance test system | |
| CN208350689U (en) | A kind of device for evaluating augmentation of heat transfer pipe in-tube condensation characteristic | |
| CN105699060A (en) | Heat-exchange 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 | |
| CN104236844B (en) | A kind of big flow gaseous fluid pilot system of nuclear power station MSR | |
| CN105606644B (en) | All working condition high precision heat exchange single tube performance test apparatus | |
| CN207923759U (en) | A kind of device measuring gas-liquid component thermal coefficient |
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. |