CN102944439B - Heat exchanger thermal-cold circle fatigue experiment device - Google Patents
Heat exchanger thermal-cold circle fatigue experiment device Download PDFInfo
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- CN102944439B CN102944439B CN201210452487.8A CN201210452487A CN102944439B CN 102944439 B CN102944439 B CN 102944439B CN 201210452487 A CN201210452487 A CN 201210452487A CN 102944439 B CN102944439 B CN 102944439B
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Abstract
The invention provides a heat exchanger thermal-cold circle fatigue experiment device with a gas displacement loop, which comprises a cold loop, a hot loop and the gas displacement loop, wherein the gas displacement loop comprises a compressor, a gas tank, a displacement pneumatic ball valve, an oil draining cold pneumatic ball valve, an oil draining hot pneumatic ball valve and the like; the inlet of the compressor is connected with an upper communication tube between a cold oil tank and a hot oil tank, one path of the outlet of the compressor is respectively connected with the gas tank and the displacement pneumatic ball valve through a tee, and the other path of the outlet of the compressor is connected with a tee of an outlet connecting tube of the heat exchanger serving as a test piece; and an inlet connecting tube of the heat exchanger serving as the test piece is respectively connected with the cold oil tank or the hot oil tank through a cross and the oil draining cold pneumatic ball valve or the oil draining hot pneumatic ball valve. The heat exchanger thermal-cold circle fatigue experiment device provided by the invention has the advantages that a gas displacement process is added between the alternate cooling and heating processes, and the remaining oil in the heat exchanger serving as the test piece is emptied to the corresponding cold oil tank or hot oil tank, thus preventing cold oil and hot oil from mixing. Compared with the traditional scheme, the device provided by the invention can save a large amount of electricity.
Description
Technical field
The present invention relates to a kind of heat interchanger thermal cold fatigue test unit.
Background technology
It is actuating medium that heat interchanger thermal cold fatigue test unit adopts conduction oil conventionally, testpieces heat interchanger is alternately passed into cold fluid and hot fluid, in the cycle period of regulation, do not have leakage to be qualified, for detection of the anti-alternation thermal fatigue strength of heat exchanger experiment part material and welding portion.
Traditional heat interchanger thermal cold fatigue test unit design proposal one is by the scheme of heating again cooling whole the oil flowing out from testpieces elder generations, obviously will cause very large energy dissipation; The 2nd, hot and cold 2 loops are set, the oil return of flowing out from testpieces enters respectively hot and cold oil tank according to the difference of temperature, like this can recovery section energy.In such scheme, heat energy is not only for the temperature variation of heat exchanger materials itself, and for the temperature variation of conduction oil medium, particularly because existing the mixed phenomenon of hot and cold string to cause larger energy dissipation.Because the specific heat capacity of conduction oil is about 2.5 times of aluminium, be energy-conservation key so reduce the string of hot and cold oil mixed.
Summary of the invention
Thinking of the present invention is between cooling and heating process, to add a gas oil displacement process, can avoid the string of hot and cold oil mixed, thereby a kind of energy-saving heat interchanger thermal cold fatigue test unit is provided.
The present invention adopts following technical scheme:
A kind of heat interchanger thermal cold fatigue test unit, described thermal cold fatigue test unit comprises cold loop, hot loop, testpieces cabinet, control instrument group, and testpieces heat interchanger; Control instrument group comprises temperature sensor A, temperature sensor B, temperature sensor C, pressure transducer and tensimeter; Cold loop comprises cold oil tank, cold oil pump, refrigeratory, refrigeration machine, cold Pneumatic three-way ball valve, cold pneumatic ball valve, low temperature valve group, cold filter set, cold threeway group, four-way, connecting pipe group; Low temperature valve group comprises valve A, valve B, valve C, valve D, valve E, valve F, valve G, valve H, mends nitrogen valve and safety valve; Cold filter set comprises filtrator A, filter B and filtrator C; Cold threeway group comprises threeway A, threeway B, threeway C, threeway D, threeway E and threeway F; Connecting pipe group comprises testpieces heat interchanger inlet connecting branch, testpieces heat exchanger exit connecting pipe, upper communicating pipe and lower communicating tube; Hot loop comprises deep fat tank, hot oil pump, electric heater, hot Pneumatic three-way ball valve, hot pneumatic ball valve, thermal valve group and filtrator D; Thermal valve group comprises valve I, valve J, valve K, valve L;
It is characterized in that, this thermal cold fatigue test unit is also provided with gas displacement of reservoir oil loop, comprises compressor, gas-holder, displacement of reservoir oil pneumatic ball valve, the cold pneumatic ball valve of oil extraction, the hot pneumatic ball valve of oil extraction, non-return valve and threeway G;
Cold oil tank is provided with cold liquid level gauge, cold import A, cold import B, cold import C, cold outlet, cold lower communicating tube interface, cold upper communicating pipe interface, pressure gauge connection, oil-filled interface, relief valve connection and nitrogen interface; Wherein pressure gauge connection connects tensimeter, and oil-filled interface meets valve H, and relief valve connection connects safety valve, and nitrogen interface connects benefit nitrogen valve;
Deep fat tank is provided with hot liquid level gauge, hot import A, hot import B, hot import C, heat outlet, hot lower communicating tube interface, heat interface of upper communicating pipe and thermal exhaust interface; Thermal exhaust interface meets valve L;
The cold outlet of cold oil tank is connected with the import of cold oil pump with filtrator A by valve A, filtrator A inflow point is connected with the valve F for discharge opeing, cold oil delivery side of pump is connected with the oily side-entrance of refrigeratory by valve B, the oily side outlet of refrigeratory connects two circuits by threeway A, then converge to threeway B, wherein line routing valve C, refrigeration machine and a valve D are composed in series, and another circuit adopts valve E; The outlet of threeway B is connected with the import of cold Pneumatic three-way ball valve, and the left outlet of cold Pneumatic three-way ball valve is connected with the cold import A of cold oil tank, and the right outlet of cold Pneumatic three-way ball valve is connected with the left import of threeway C; The outlet of threeway C is connected with the import of testpieces heat interchanger by testpieces heat interchanger inlet connecting branch, and the outlet of testpieces heat interchanger is connected with the import of threeway D by testpieces heat exchanger exit connecting pipe; Testpieces heat interchanger inlet connecting branch is provided with four-way, filter B and temperature sensor A; Testpieces heat exchanger exit connecting pipe is provided with temperature sensor B, filtrator C, pressure transducer and threeway E; The left outlet of threeway D is connected with the cold import B of cold oil tank by cold pneumatic ball valve;
The heat outlet of deep fat tank is connected with the import of hot oil pump with filtrator D by valve I, filtrator D inflow point is connected with the valve K for discharge opeing, deep fat delivery side of pump is connected with electric heater import by valve J, the outlet of electric heater is connected with the import of hot Pneumatic three-way ball valve, is provided with temperature sensor C in electric heater outlet; The right outlet of hot Pneumatic three-way ball valve is connected with the hot import A of deep fat tank, and the left outlet of hot Pneumatic three-way ball valve is connected with the right import of threeway C; The right outlet of threeway D is connected with the hot import B of deep fat tank by hot pneumatic ball valve;
The cold lower communicating tube interface of cold oil tank is connected with the hot lower communicating tube interface of deep fat tank with lower communicating tube by valve G; Cold upper communicating pipe of cold oil tank interface by the heat of threeway F and upper communicating pipe and deep fat tank communicating pipe interface be connected;
The outlet of threeway F is connected with the import of compressor by non-return valve, and the outlet of compressor is connected with the interface of gas-holder by threeway G mono-tunnel, and the displacement of reservoir oil pneumatic ball valve of separately leading up to is connected with the upper end of the threeway E on testpieces heat exchanger exit connecting pipe; The left end outlet of the four-way of testpieces heat interchanger inlet connecting branch is connected with the cold import D of cold oil tank by the cold pneumatic ball valve of the displacement of reservoir oil, and the right-hand member outlet of four-way is connected with the hot import D of deep fat tank by the hot pneumatic ball valve of the displacement of reservoir oil.
Compared with prior art, tool of the present invention has the following advantages:
1. on the basis in cold oil loop and heating oil loop, added gas displacement of reservoir oil loop, between the cooling and heating process replacing, added a gas oil displacement process, surplus oil in heat exchanger experiment part is emptied in corresponding cold oil tank or deep fat tank, being a kind of simple and feasible mixed method of hot and cold oil string of avoiding, is also a kind of very energy-conservation scheme;
2. adopt bottom in and top out connected mode for the actuating medium of heat exchanger experiment part heating and cooling process, and in order to reach good oil displacement efficiency, the gas in displacement of reservoir oil loop need to adopt upper entering and lower leaving, so four-way is set at testpieces heat interchanger inlet connecting branch, make the surplus oil in heat exchanger experiment part as far as possible emptying, flow to respectively cold oil tank and deep fat tank by the cold pneumatic ball valve of the displacement of reservoir oil and the hot pneumatic ball valve of the displacement of reservoir oil;
3. the gas source of the displacement of reservoir oil, in the nitrogen of this apparatus system cold oil tank and the covering of deep fat tank top, can maintain intrasystem pressure equilibrium; Covering nitrogen is in order to realize controlled working pressure; Because the heat transfer property of gas is poor, so gas oil displacement process can't affect the tolerance situation of heat exchanger materials to thermal cold fatigue.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the embodiment of the present invention.
Embodiment
Embodiment is referring to Fig. 1,
A kind of heat interchanger thermal cold fatigue test unit, described thermal cold fatigue test unit comprises cold loop 1, hot loop 2, testpieces cabinet 4, control instrument group 5, and testpieces heat interchanger 6; Control instrument group 5 comprises temperature sensor A5-1, temperature sensor B5-2, temperature sensor C5-3, pressure transducer 5-4 and tensimeter 5-5; Cold loop 1 comprises cold oil tank 1-1, cold oil pump 1-2, refrigeratory 1-3, refrigeration machine 1-4, cold Pneumatic three-way ball valve 1-5, cold pneumatic ball valve 1-6, low temperature valve group 1-7, cold filter set 1-8, cold threeway group 1-9, four-way 1-10, connecting pipe group 1-11; Low temperature valve group 1-7 comprises valve A1-7-1, valve B1-7-2, valve C1-7-3, valve D1-7-4, valve E1-7-5, valve F1-7-6, valve G1-7-7, valve H1-7-8, mends nitrogen valve 1-7-9 and safety valve 1-7-10; Cold filter set 1-8 comprises filtrator A1-8-1, filter B 1-8-2 and filtrator C1-8-3; Cold threeway group 1-9 comprises threeway A1-9-1, threeway B1-9-2, threeway C1-9-3, threeway D1-9-4, threeway E1-9-5 and threeway F1-9-6; Connecting pipe group 1-11 comprises testpieces heat interchanger inlet connecting branch 1-11-1, testpieces heat exchanger exit connecting pipe 1-11-2,1-11-3 of upper communicating pipe and lower communicating tube 1-11-4; Hot loop 2 comprises deep fat tank 2-1, hot oil pump 2-2, electric heater 2-3, hot Pneumatic three-way ball valve 2-5, hot pneumatic ball valve 2-6, thermal valve group 2-7 and filtrator D2-8; Thermal valve group 2-7 comprises valve I2-7-1, valve J2-7-2, valve K2-7-3, valve L2-7-4;
It is characterized in that, this thermal cold fatigue test unit is also provided with gas displacement of reservoir oil loop 3, comprises compressor 3-1, gas-holder 3-2, displacement of reservoir oil pneumatic ball valve 3-3, the cold pneumatic ball valve 3-4 of oil extraction, the hot pneumatic ball valve 3-5 of oil extraction, non-return valve 3-6 and threeway G3-7;
Cold oil tank 1-1 is provided with cold liquid level gauge 1-1-1, cold import A1-1-2, cold import B1-1-3, cold import C1-1-4, cold outlet 1-1-5, cold lower communicating tube interface 1-1-6, cold interface 1-1-7 of upper communicating pipe, pressure gauge connection 1-1-8, oil-filled interface 1-1-9, relief valve connection 1-1-10 and nitrogen interface 1-1-11; Wherein pressure gauge connection 1-1-8 meets tensimeter 5-5, and oil-filled interface 1-1-9 meets valve H1-7-8, and relief valve connection 1-1-10 meets safety valve 1-7-10, and nitrogen interface 1-1-11 connects and mends nitrogen valve 1-7-9;
Deep fat tank 2-1 is provided with hot liquid level gauge 2-1-1, hot import A2-1-2, hot import B2-1-3, hot import C2-1-4, heat outlet 2-1-5, hot lower communicating tube interface 2-1-6, heat interface 2-1-7 of upper communicating pipe and thermal exhaust interface 2-1-8; Thermal exhaust interface 2-1-8 meets valve L2-7-4;
The cold outlet 1-1-5 of cold oil tank 1-1 is connected with the import of cold oil pump 1-2 with filtrator A1-8-1 by valve A1-7-1, filtrator A1-8-1 inflow point is connected with valve F1-7-6, the outlet of cold oil pump 1-2 is connected with the oily side-entrance of refrigeratory 1-3 by valve B1-7-2, the oily side outlet of refrigeratory 1-3 connects two circuits by threeway A1-9-1, then converge to threeway B1-9-2, wherein line routing valve C1-7-3, a refrigeration machine 1-4 and valve D1-7-4 are composed in series, and another circuit adopts valve E1-7-5; The outlet of threeway B1-9-2 is connected with the import of cold Pneumatic three-way ball valve 1-5, and the left outlet of cold Pneumatic three-way ball valve 1-5 is connected with the cold import A1-1-2 of cold oil tank 1-1, and the right outlet of cold Pneumatic three-way ball valve 1-5 is connected with the left import of threeway C1-9-3; The outlet of threeway C1-9-3 is connected with the import 6-1 of testpieces heat interchanger 6 by testpieces heat interchanger inlet connecting branch 1-11-1, and the outlet 6-2 of testpieces heat interchanger 6 is connected with the import of threeway D1-9-4 by testpieces heat exchanger exit connecting pipe 1-11-2; Testpieces heat interchanger inlet connecting branch 1-11-1 is provided with four-way 1-10, filter B 1-8-2 and temperature sensor A5-1; Testpieces heat exchanger exit connecting pipe 1-11-2 is provided with temperature sensor B5-2, filtrator C1-8-3, pressure transducer 5-4 and threeway E1-9-5; The left outlet of threeway D1-9-4 is connected with the cold import B1-1-3 of cold oil tank 1-1 by cold pneumatic ball valve 1-6;
The heat outlet 2-1-5 of deep fat tank 2-1 is connected with the import of hot oil pump 2-2 with filtrator D2-8 by valve I2-7-1, filtrator D2-8 inflow point is connected with the valve K2-7-3 for discharge opeing, the outlet of hot oil pump 2-2 is connected with electric heater 2-3 import by valve J2-7-2, the outlet of electric heater 2-3 is connected with the import of hot Pneumatic three-way ball valve 2-5, is provided with temperature sensor C5-3 in electric heater outlet; The right outlet of hot Pneumatic three-way ball valve 2-5 is connected with the hot import A2-1-2 of deep fat tank 2-1, and the left outlet of hot Pneumatic three-way ball valve 2-5 is connected with the right import of threeway C1-9-3; The right outlet of threeway D1-9-4 is connected with the hot import B2-1-3 of deep fat tank 2-1 by hot pneumatic ball valve 2-6;
The cold lower communicating tube interface of cold oil tank 1-1-6 is connected with the hot lower communicating tube interface 2-1-6 of deep fat tank with lower communicating tube 1-11-4 by valve G1-7-7; Interface 1-1-7 of cold upper communicating pipe of cold oil tank is connected by communicating pipe interface 2-1-7 in the heat of threeway F1-9-6 and upper communicating pipe 1-11-3 and deep fat tank;
The outlet of threeway F1-9-6 is connected with the import of compressor 3-1 by non-return valve 3-6, the outlet of compressor 3-1 is connected with the interface 3-2-1 of gas-holder 3-2 by threeway G3-7 mono-tunnel, and the displacement of reservoir oil pneumatic ball valve 3-3 of separately leading up to is connected with the upper end of the threeway E1-9-5 on testpieces heat exchanger exit connecting pipe 1-11-2; The left end outlet of the four-way 1-10 of testpieces heat interchanger inlet connecting branch 1-11-1 is connected with the cold import D1-1-4 of cold oil tank by the cold pneumatic ball valve 3-4 of the displacement of reservoir oil, and the right-hand member outlet of four-way 1-10 is connected with the hot import D2-1-4 of deep fat tank by the hot pneumatic ball valve 3-5 of the displacement of reservoir oil.
The workflow of described heat interchanger thermal cold fatigue test unit is as follows:
The cold oil coming from cold oil tank 1-1, after cold oil pump 1-2 boosts, through refrigeratory 1-3, refrigeration machine 1-4 separately or connect coolingly, flow to the entrance of cold Pneumatic three-way ball valve 1-5; In the time of the cooling procedure of heat exchanger experiment part, cold oil is along the right outlet of cold Pneumatic three-way ball valve 1-5, enter testpieces heat interchanger through threeway C1-9-3 and testpieces heat interchanger inlet connecting branch 1-11-1, then return to cold oil tank along testpieces heat exchanger exit connecting pipe 1-11-2, threeway D1-9-4 and cold pneumatic ball valve 1-6; And in the time of the non-cooling procedure of heat exchanger experiment part, directly return to cold oil tank along the left outlet of cold Pneumatic three-way ball valve 1-5.
The deep fat coming from deep fat tank 2-1, after hot oil pump 2-2 boosts, through electric heater 2-3 heat temperature raising, flow to the entrance of hot Pneumatic three-way ball valve 2-5; In the time of the heating process of heat exchanger experiment part, along the left outlet of hot Pneumatic three-way ball valve 2-5, enter testpieces heat interchanger through threeway C1-9-3 and testpieces heat interchanger inlet connecting branch 1-11-1, then return to deep fat tank along testpieces heat exchanger exit connecting pipe 1-11-2, threeway D1-9-4 and hot pneumatic ball valve 2-6; And in the time of the non-heating process of heat exchanger experiment part, deep fat directly returns to deep fat tank along the right outlet of hot Pneumatic three-way ball valve 1-5.
Cold oil tank and deep fat tank top covers nitrogen to obtain the test pressure of testpieces heat interchanger, and uses communicating pipe 1-11-3 and make the pressure equilibrium of 2 oil tanks, makes the liquid level equilibrium of 2 oil tanks with lower communicating tube 1-11-4.
Between the cooling procedure hocketing and heating process, oil displacement process is set.The threeway F1-9-6 extracting gases being connected with upper communicating pipe by cold oil tank side enters compressor 3-1 through non-return valve 3-6; In the time of the non-oil displacement process of heat exchanger experiment part (cooling procedure or heating process), displacement of reservoir oil pneumatic ball valve 3-3 closes, and compressor 3-1 exit gas is to gas-holder 3-2 exhaust; In the time of the oil displacement process of heat exchanger experiment part, displacement of reservoir oil pneumatic ball valve 3-3 opens, from the gas of compressor 3-1 and the gas-holder 3-2 testpieces heat exchanger exit connecting pipe 1-11-2 higher through threeway E1-9-5 in-position, by testpieces heat interchanger inlet connecting branch 1-11-1 lower along position the surplus oil in testpieces heat interchanger 6, enter cold oil tank or deep fat tank by four-way 1-10 through the cold pneumatic ball valve 3-4 of oil extraction or the hot pneumatic ball valve 3-5 of oil extraction.
The switching in cold loop, hot loop and displacement of reservoir oil loop is to implement according to the temperature sensor signal on testpieces heat exchanger exit connecting pipe; Outlet temperature of electric heater sensor is for the overtemperature prote to electric heater.
It is for fear of bringing the aluminium bits foreign material in testpieces heat interchanger into system that filter B 1-8-2 and filtrator C1-8-3 are set.It is the normal operation in order to ensure hot and cold oil pump and each valve that filtrator A1-8-1 and filtrator D2-8 are set.
Claims (1)
1. a heat interchanger thermal cold fatigue test unit, described thermal cold fatigue test unit comprises cold loop (1), hot loop (2), testpieces cabinet (4), control instrument group (5) and testpieces heat interchanger (6); Control instrument group (5) comprises temperature sensor A (5-1), temperature sensor B (5-2), temperature sensor C (5-3), pressure transducer (5-4) and tensimeter (5-5); Cold loop (1) comprises cold oil tank (1-1), cold oil pump (1-2), refrigeratory (1-3), refrigeration machine (1-4), cold Pneumatic three-way ball valve (1-5), cold pneumatic ball valve (1-6), low temperature valve group (1-7), cold filter set (1-8), cold threeway group (1-9), four-way (1-10), connecting pipe group (1-11); Low temperature valve group (1-7) comprises valve A (1-7-1), valve B (1-7-2), valve C (1-7-3), valve D (1-7-4), valve E (1-7-5), valve F (1-7-6), valve G (1-7-7), valve H (1-7-8), mends nitrogen valve (1-7-9) and safety valve (1-7-10); Cold filter set (1-8) comprises filtrator A (1-8-1), filter B (1-8-2) and filtrator C (1-8-3); Cold threeway group (1-9) comprises threeway A (1-9-1), threeway B (1-9-2), threeway C (1-9-3), threeway D (1-9-4), threeway E (1-9-5) and threeway F (1-9-6); Connecting pipe group (1-11) comprises testpieces heat interchanger inlet connecting branch (1-11-1), testpieces heat exchanger exit connecting pipe (1-11-2), upper communicating pipe (1-11-3) and lower communicating tube (1-11-4); Hot loop (2) comprises deep fat tank (2-1), hot oil pump (2-2), electric heater (2-3), hot Pneumatic three-way ball valve (2-5), hot pneumatic ball valve (2-6), thermal valve group (2-7) and filtrator D (2-8); Thermal valve group (2-7) comprises valve I (2-7-1), valve J (2-7-2), valve K (2-7-3), valve L (2-7-4);
Cold oil tank (1-1) is provided with cold liquid level gauge (1-1-1), cold import A (1-1-2), cold import B (1-1-3), cold import C (1-1-4), cold outlet (1-1-5), cold lower communicating tube interface (1-1-6), cold interface of upper communicating pipe (1-1-7), pressure gauge connection (1-1-8), oil-filled interface (1-1-9), relief valve connection (1-1-10) and nitrogen interface (1-1-11); Wherein pressure gauge connection (1-1-8) connects tensimeter (5-5), oil-filled interface (1-1-9) meets valve H (1-7-8), relief valve connection (1-1-10) connects safety valve (1-7-10), and nitrogen interface (1-1-11) connects mends nitrogen valve (1-7-9);
Deep fat tank (2-1) is provided with hot liquid level gauge (2-1-1), hot import A (2-1-2), hot import B (2-1-3), hot import C (2-1-4), heat outlet (2-1-5), hot lower communicating tube interface (2-1-6), heat interface of upper communicating pipe (2-1-7) and thermal exhaust interface (2-1-8); Thermal exhaust interface (2-1-8) meets valve L (2-7-4);
It is characterized in that, this thermal cold fatigue test unit is also provided with gas displacement of reservoir oil loop (3), comprises compressor (3-1), gas-holder (3-2), displacement of reservoir oil pneumatic ball valve (3-3), the cold pneumatic ball valve of oil extraction (3-4), the hot pneumatic ball valve of oil extraction (3-5), non-return valve (3-6) and threeway G (3-7);
The cold outlet (1-1-5) of cold oil tank (1-1) is connected with the import of cold oil pump (1-2) with filtrator A (1-8-1) by valve A (1-7-1), filtrator A (1-8-1) inflow point is connected with valve F (1-7-6), the outlet of cold oil pump (1-2) is connected with the oily side-entrance of refrigeratory (1-3) by valve B (1-7-2), the oily side outlet of refrigeratory (1-3) connects two circuits by threeway A (1-9-1), then converge to threeway B (1-9-2), a wherein line routing valve C (1-7-3), refrigeration machine (1-4) and valve D (1-7-4) are composed in series, another circuit adopts valve E (1-7-5), the outlet of threeway B (1-9-2) is connected with the import of cold Pneumatic three-way ball valve (1-5), the left outlet of cold Pneumatic three-way ball valve (1-5) is connected with the cold import A (1-1-2) of cold oil tank (1-1), and the right outlet of cold Pneumatic three-way ball valve (1-5) is connected with the left import of threeway C (1-9-3), the outlet of threeway C (1-9-3) is connected with the import (6-1) of testpieces heat interchanger (6) by testpieces heat interchanger inlet connecting branch (1-11-1), and the outlet (6-2) of testpieces heat interchanger (6) is connected with the import of threeway D (1-9-4) by testpieces heat exchanger exit connecting pipe (1-11-2), testpieces heat interchanger inlet connecting branch (1-11-1) is provided with four-way (1-10), filter B (1-8-2) and temperature sensor A (5-1), testpieces heat exchanger exit connecting pipe (1-11-2) is provided with temperature sensor B (5-2), filtrator C (1-8-3), pressure transducer (5-4) and threeway E (1-9-5), the left outlet of threeway D (1-9-4) is connected with the cold import B (1-1-3) of cold oil tank (1-1) by cold pneumatic ball valve (1-6),
The heat outlet (2-1-5) of deep fat tank (2-1) is connected with the import of hot oil pump (2-2) with filtrator D (2-8) by valve I (2-7-1), filtrator D (2-8) inflow point is connected with the valve K (2-7-3) for discharge opeing, the outlet of hot oil pump (2-2) is connected with electric heater (2-3) import by valve J (2-7-2), the outlet of electric heater (2-3) is connected with the import of hot Pneumatic three-way ball valve (2-5), is provided with temperature sensor C (5-3) in electric heater outlet; The right outlet of hot Pneumatic three-way ball valve (2-5) is connected with the hot import A (2-1-2) of deep fat tank (2-1), and the left outlet of hot Pneumatic three-way ball valve (2-5) is connected with the right import of threeway C (1-9-3); The right outlet of threeway D (1-9-4) is connected with the hot import B (2-1-3) of deep fat tank (2-1) by hot pneumatic ball valve (2-6);
The cold lower communicating tube interface of cold oil tank (1-1-6) is connected with the hot lower communicating tube interface (2-1-6) of deep fat tank with lower communicating tube (1-11-4) by valve G (1-7-7); Interface of cold upper communicating pipe of cold oil tank (1-1-7) was connected by communicating pipe interface (2-1-7) in the heat of threeway F (1-9-6) and upper communicating pipe (1-11-3) and deep fat tank;
The outlet of threeway F (1-9-6) is connected with the import of compressor (3-1) by non-return valve (3-6), the outlet of compressor (3-1) is connected with the interface (3-2-1) of gas-holder (3-2) by threeway G (3-7) road, and the displacement of reservoir oil pneumatic ball valve (3-3) of separately leading up to is connected with the upper end of the threeway E (1-9-5) on testpieces heat exchanger exit connecting pipe (1-11-2); The left end outlet of the four-way (1-10) of testpieces heat interchanger inlet connecting branch (1-11-1) is connected with the cold import C (1-1-4) of cold oil tank by the cold pneumatic ball valve of oil extraction (3-4), and the right-hand member outlet of four-way (1-10) is connected with the hot import C (2-1-4) of deep fat tank by the hot pneumatic ball valve of oil extraction (3-5).
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| CN101587027A (en) * | 2009-06-23 | 2009-11-25 | 上海理工大学 | System for testing heat-transfer performance of gas-water-oil heat interchanger |
| CN201607337U (en) * | 2010-01-28 | 2010-10-13 | 刘广宏 | Test-bed used for testing compression resistance and thermal shock resistance of combustion engine heat exchanger |
| CN102313579A (en) * | 2011-09-01 | 2012-01-11 | 东南大学 | Compound cold and hot water circulating system for heat exchanger performance test |
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2012
- 2012-11-12 CN CN201210452487.8A patent/CN102944439B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| SU1297125A1 (en) * | 1985-04-01 | 1987-03-15 | Всесоюзный Научно-Исследовательский,Проектно-Конструкторский И Технологический Институт Трансформаторостроения | Installation for testing heat exchangers |
| DE19854774C2 (en) * | 1998-11-27 | 2000-11-16 | Bosch Gmbh Robert | Test bench for water heaters, especially for gas-fired instantaneous water heaters |
| CN101587027A (en) * | 2009-06-23 | 2009-11-25 | 上海理工大学 | System for testing heat-transfer performance of gas-water-oil heat interchanger |
| CN201607337U (en) * | 2010-01-28 | 2010-10-13 | 刘广宏 | Test-bed used for testing compression resistance and thermal shock resistance of combustion engine heat exchanger |
| CN102313579A (en) * | 2011-09-01 | 2012-01-11 | 东南大学 | Compound cold and hot water circulating system for heat exchanger performance test |
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| 刘化瑾等.当量螺旋角对三分螺旋折流板换热器性能的影响.《化学工程》.2010,第38卷(第7期),第22－25页. |
| 异形孔隔板换热器壳侧传热与阻力性能的试验研究;盛艳军等;《东南大学学报(自然科学版)》;20120331;第42卷(第2期);第318－322页 * |
| 当量螺旋角对三分螺旋折流板换热器性能的影响;刘化瑾等;《化学工程》;20100731;第38卷(第7期);第22－25页 * |
| 盛艳军等.异形孔隔板换热器壳侧传热与阻力性能的试验研究.《东南大学学报(自然科学版)》.2012,第42卷(第2期),第318－322页. |
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