CN201397242Y - Evaporation experimental system in copper pipe - Google Patents
Evaporation experimental system in copper pipe Download PDFInfo
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- CN201397242Y CN201397242Y CN2009200706546U CN200920070654U CN201397242Y CN 201397242 Y CN201397242 Y CN 201397242Y CN 2009200706546 U CN2009200706546 U CN 2009200706546U CN 200920070654 U CN200920070654 U CN 200920070654U CN 201397242 Y CN201397242 Y CN 201397242Y
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Abstract
The utility model relates to an evaporation experimental system in a copper pipe, which comprises a refrigerant circulation, a testing segment, a water circulation, a constant temperature control loop, a front end over-cold processing loop, a condensation processing loop and a computer measuring control system. The refrigerant circulation is composed by the connection of a hydraulic metering pumpP0, a sleeve heat exchanger HE3, an electronic expansion valve EXV, the testing segment T.S., a plate heat exchanger HE2 and a heat-exchanging liquid storage device RT in series. The cooling water circulation is composed of a pump P1 and an electric heating water tank H1. The electric heating water tank H1 and the pump P1 are connected at the two ends of the testing segment after being connected with an electromagnetic flow meter G1 in series. When in an evaporation experiment, the evaporation experimental system can control the evaporation temperature, realize the adjusting of inlet over-colddegree of the testing segment, and realize the adjusting of changeable flow rate in a fixed flow rate experimental pipe of the metering pump. A data collecting control system is compatible and open with the characteristics of simple using, intuitive interface and short developing period.
Description
Technical field
The utility model relates to a kind of evaporation experiment system, can realize that particularly the degree of supercooling of evaporation test section front end is regulated, and satisfies when the low discharge of tubule footpath the in-tube evaporation experimental system of the big flow regulation of refrigerated medium pump.
Background technology
In order to improve efficiency of heat exchanger, reduce the size of heat interchanger, the enhanced heat exchange technology of copper pipe is constantly developed, various enhanced heat exchange copper pipes are developed, for this reason, need a kind of method and apparatus to measure the in-tube evaporation coefficient of heat transfer of copper pipe,, and provide reference for design of heat exchanger with the checking design.Current, many in-tube evaporations and condensation test device adopt the steam compression type refrigeration circulation, can not satisfy multiple cold-producing medium and test at in-tube evaporation.Because the complicacy of in-tube evaporation, the research of this respect is many still based on theoretical analysis, so a kind of special experiment test device of demand.
Summary of the invention
The utility model is to solve the technical matters that the copper pipe in-tube evaporation is measured, and a kind of copper pipe in-tube evaporation experimental system of utilizing hydraulic metering pump circulation can realize the evaporating state simulation simultaneously proposed, this system is when carrying out evaporation experiment, can regulate and control evaporating temperature, satisfy simultaneously the unsteady flow amount of various experiment casts is regulated.
The technical solution of the utility model is: a kind of copper pipe in-tube evaporation experimental system, comprise refrigerant cycle, test section, water cycle, the cold treatment loop is crossed in thermostatic control loop, front end, the condensation process loop, the computer measurement control system is characterized in: refrigerant cycle is connected in series and is formed by fluid pressure type volume pump P0, double-tube heat exchanger HE3, electric expansion valve EXV, test section T.S., plate type heat exchanger HE2, heat exchange reservoir RT; Water cycle is made up of pump P1 and electric heat water tank H1, wherein, electric heat water tank H1 and pump P1, be attempted by after the flowmeter G1 serial connection test section two ends, the thermostatic control loop is made up of heat exchange reservoir RT and low-temperature receiver R2, water pump P 5, electric heat water tank H4, and is attempted by between fluid pressure type volume pump P0 and the plate type heat exchanger HE2; Front end is crossed the cold treatment loop by double-pipe exchanger HE3, water pump P 2, electric heat water tank H2, H3, low-temperature receiver R1 forms, the condensation process loop is made up of heat interchanger HE2 and water pump P 3, electric heat water tank H3, and wherein, plate type heat exchanger HE2 water delivering orifice is by solenoid valve SV1, pump P2, electric heat water tank H2 is connected with the water inlet of double-tube heat exchanger HE3, and the water delivering orifice of double-tube heat exchanger HE3 is connected in series with water pump P 4 by electric heat water tank H3 or low-temperature receiver R1, and water pump P 3 is connected with plate type heat exchanger HE2 water inlet; Test section is in series by three sections double-tube heat exchangers, and the sleeve pipe of test section is imported and exported two ends and is connected with platinum resistance T4, the T5 that is used for measuring water temperature respectively; The test section back is connected with platinum resistance T1 and the pressure unit PS1 that is used to measure refrigerant condition, the test section front is connected with the platinum resistance T2 that is used to measure refrigerant condition, test section is forward and backward and be connected to and be used to measure the differential pressure transmitter Δ P that refrigerant side pressure falls, and electric expansion valve EXV front is connected with the platinum resistance T3 that is used to measure refrigerant condition.
Be connected with refrigerant mass fluxes meter G2 between fluid pressure type volume pump P0 and the double-tube heat exchanger HE3, refrigerant mass fluxes meter G2 inlet connects liquid visor S3; Hydraulic metering pump P0 inlet connects liquid visor S4, and outlet connects pulse damper B; Fluid pressure type volume pump P0 be connected pulse damper B, liquid visor S3 polyphone two ends also are connected to stop valve SV3; Be serially connected with stop valve SV2 between fluid pressure type volume pump P0 and the heat interchanger HE2; Test section is in series by three sections 2000mm double-tube heat exchangers, and interior pipe is a copper pipe to be tested, and outer tube is an internal diameter 15mmPPR pipe, the PPR external diameter of pipe is 20mm, connects a copper pipe, wall thickness 3mm between PPR pipe and the interior pipe, copper pipe and PPR glass cement adhesion, PPR pipe overcoat is a stainless-steel tube.
The beneficial effects of the utility model are: carrying out evaporation experiment, can control evaporating temperature, realize the adjusting of test section inlet degree of supercooling simultaneously, can also realize the adjusting of unsteady flow amount in the volume pump constant flow experiment tube.It is simple, compatible open that data acquisition control system uses, objective interface, construction cycle weak point.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1, copper pipe in-tube evaporation experimental system of the present utility model comprises four parts compositions such as bushing type water/cold-producing medium evaporation, refrigerant fluid processing server, low-temperature receiver, computer measurement control system.The refrigerant fluid processing server is by parts such as evaporator, fluid reservoir, refrigerated medium pumps.
Copper pipe in-tube evaporation experimental system is by refrigerant cycle, test section, and water cycle, the thermostatic control loop, front end is crossed the cold treatment loop, compositions such as condensation process loop.Refrigerant cycle is connected in series and is formed by fluid pressure type volume pump P0, double-tube heat exchanger HE3, electric expansion valve EXV, test section T.S, plate type heat exchanger HE2, heat exchange reservoir RT; Water cycle is made up of pump P1 and electric heat water tank H1, wherein, electric heat water tank H1 and pump P1, be attempted by after the flowmeter G1 serial connection test section two ends, the thermostatic control loop is made up of heat exchange reservoir RT and low-temperature receiver R2, water pump P 5, electric heat water tank H4, and is attempted by between fluid pressure type volume pump P0 and the plate type heat exchanger HE2; Front end is crossed the cold treatment loop by double-pipe exchanger HE3, water pump P 2, electric heat water tank H2, H3, low-temperature receiver R1 forms, the condensation process loop is made up of heat interchanger HE2 and water pump P 3, electric heat water tank H3, and wherein, plate type heat exchanger HE2 water delivering orifice is by solenoid valve SV1, pump P2, electric heat water tank H2 is connected with the water inlet of double-tube heat exchanger HE3, and the water delivering orifice of double-tube heat exchanger HE3 is connected in series with water pump P 4 by electric heat water tank H3 or low-temperature receiver R1, and water pump P 3 is connected with plate type heat exchanger HE2 water inlet; Test section is in series by three sections double-tube heat exchangers, and the sleeve pipe of test section is imported and exported two ends and is connected with platinum resistance T4, the T5 that is used for measuring water temperature respectively; The test section back is connected with platinum resistance T1 and the pressure unit PS1 that is used to measure refrigerant condition, test section T.S front is connected with the platinum resistance T2 that is used to measure refrigerant condition, test section T.S is forward and backward and be connected to and be used to measure the differential pressure transmitter Δ P that refrigerant side pressure falls, and electric expansion valve EXV front is connected with the platinum resistance T3 that is used to measure refrigerant condition.
Be connected with refrigerant mass fluxes meter G2 between fluid pressure type volume pump P0 and the double-tube heat exchanger HE3, refrigerant mass fluxes meter G2 inlet connects liquid visor S3; Hydraulic metering pump P0 inlet connects liquid visor S4, and outlet connects pulse damper B; Fluid pressure type volume pump P0 be connected pulse damper B, liquid visor S3 polyphone two ends also are connected to stop valve SV3; Be serially connected with stop valve SV2 between fluid pressure type volume pump P0 and the heat interchanger HE2.
Test section T.S is in series by three sections 2000mm double-tube heat exchangers, and interior pipe is a copper pipe to be tested, and outer tube is an internal diameter 15mmPPR pipe, the PPR external diameter of pipe is 20mm, connects a copper pipe, wall thickness 3mm between PPR pipe and the interior pipe, copper pipe and PPR glass cement adhesion, PPR pipe overcoat is a stainless-steel tube.Cold-producing medium flows at interior pipe, water flows in the collar, the chilled water circulation is made up of pump P1 and electric heat water tank H1, the flow of water is measured by flowmeter G1, the import and export water temperature of sleeve pipe is by platinum resistance T4, T5 measures, refrigerant condition behind the test section T.S is measured by platinum resistance T1 and pressure unit PS2, refrigerant condition before the test section T.S is measured by T2, test section T.S refrigerant side pressure falls by differential pressure transmitter Δ P to be measured, refrigerant condition is measured by platinum resistance T3 and pressure unit PS1 before the electric expansion valve EXV, and whether the cold-producing medium that visor S1 and visor S2 are used for the import and export of observation test section is pure liquid state or pure gaseous state.
Heat exchange reservoir RT and low-temperature receiver R2, water pump P 5, electric heat water tank H4 etc. form the evaporating pressure of a thermostatic control circuit controls heat exchange reservoir RT.Heat exchange reservoir RT has the liquid storage function simultaneously, the refrigerant charge of varitrol.
Double-pipe exchanger HE3, water pump P 2, electric heat water tank H2, H3, low-temperature receiver R1 forms front end and crosses the cold treatment loop.More than 9.52mm, during the metering pump high volume, close stop valve SV2 at the experiment caliber, when heat interchanging area was big, the preceding porch of test section saturation pressure guaranteed that less than the pressure in the heat exchange reservoir RT it is liquid satisfying cold-producing medium at inlet, reaches evaporation conditions this moment.Below experiment caliber 9.52mm, adjust volume pump P0 at big flow, manual adjustments stop valve SV3 makes and back flow of refrigerant reduces the refrigerant saturation pressure of test section porch, makes the porch cold excessively, and reaches full liquid evaporation.Observe the interface parameter of mass flowmeter, adjust the size of flow in the pipe in real time, finish test.
Heat interchanger HE2 and water pump P 3, electric heat water tank H3 etc. form the condensation process loop, when carrying out evaporation experiment, the superheated refrigerant steam of test section evaporation are cooled to liquid state, and low-temperature receiver R1 and water pump P 4, electric heat water tank H3 form a thermostatted water control loop.
The mass rate of cold-producing medium is measured by flowmeter G2, and flowmeter G2 inlet connects a liquid visor S3; Hydraulic metering pump P0 inlet connects a liquid visor S4, and outlet connects pulse damper, eliminates the top hole pressure pulsation.
The flow of refrigerated medium pump can be at 100Kg/m
2S～400Kg/m
2Regulate in the s scope; Low-temperature receiver is one group of wind-cooled cold-water unit, and-5 ℃～25 ℃ adjustable constant temperature chilled waters can be provided; Computer measurement control system using PLC is realized data acquisition in conjunction with configuration software, and isolates the in-tube evaporation coefficient of heat transfer.This experimental provision also can be used to measure the in-tube evaporation drag characteristic of copper pipe.
The measurement of this device and Control Software adopt Delta PLC in conjunction with configuration software, and objective interface has functions such as schematic diagram, control panel, real time data curve, heating power calculating, data sheet and the inquiry of historical data.
Claims (5)
1. copper pipe in-tube evaporation experimental system, comprise refrigerant cycle, test section, water cycle, the cold treatment loop is crossed in thermostatic control loop, front end, condensation process loop, rear end, the computer measurement control system is characterized in that: described refrigerant cycle is connected in series and is formed by fluid pressure type volume pump (P0), double-tube heat exchanger (HE3), electric expansion valve (EXV), test section (T.S), plate type heat exchanger (HE2), heat exchange reservoir (RT); The circulation of described chilled water is made up of pump (P1) and electric heat water tank (H1), wherein, electric heat water tank (H1) and pump (P1), be attempted by after flowmeter (G1) is connected in series test section (T.S) two ends; Described thermostatic control loop is made up of heat exchange reservoir (RT) and low-temperature receiver (R2), water pump (P5), electric heat water tank (H4), and is attempted by between fluid pressure type volume pump (P0) and the plate type heat exchanger (HE2); Described front end is crossed the cold treatment loop by double-pipe exchanger (HE3), water pump (P2), electric heat water tank (H2, H3), low-temperature receiver (R1) is formed, condensation process loop, described rear end is by heat interchanger (HE2) and water pump (P3), electric heat water tank (H3) is formed, wherein, plate type heat exchanger (HE2) water delivering orifice is by solenoid valve (SV1), pump (P2), electric heat water tank (H2) is connected with the water inlet of double-tube heat exchanger (HE3), and the water delivering orifice of double-tube heat exchanger (HE3) is connected in series with water pump (P4) by electric heat water tank (H3) or low-temperature receiver (R1), and water pump (P3) is connected with plate type heat exchanger (HE2) water inlet; Test section (T.S) is in series by three sections double-tube heat exchangers, the sleeve pipe of test section (T.S) import and export two ends be connected with respectively the platinum resistance that is used for measuring water temperature (T4, T5); Test section (T.S) back is connected with platinum resistance (T1) and the pressure unit (PS1) that is used to measure refrigerant condition, test section (T.S) front is connected with the platinum resistance (T2) that is used to measure refrigerant condition, test section (T.S) is forward and backward and be connected to and be used to measure the differential pressure transmitter (Δ P) that refrigerant side pressure falls, and electric expansion valve (EXV) front is connected with the platinum resistance (T3) that is used to measure refrigerant condition.
2. copper pipe in-tube evaporation experimental system according to claim 1, it is characterized in that: be connected with refrigerant mass fluxes meter (G2) between described fluid pressure type volume pump (P0) and the double-tube heat exchanger (HE3), refrigerant mass fluxes meter (G2) inlet connects liquid visor (S3).
3. copper pipe in-tube evaporation experimental system according to claim 1 is characterized in that: described hydraulic metering pump (P0) inlet connects liquid visor (S4), and outlet connects pulse damper (B).
4. copper pipe in-tube evaporation experimental system according to claim 1, it is characterized in that: described fluid pressure type volume pump (P0) be connected pulse damper (B), the two ends of liquid visor (S3) polyphone and be connected to stop valve (SV3) fluid pressure type volume pump (P0) and heat interchanger (HE2) between be serially connected with stop valve (SV2).
5. copper pipe in-tube evaporation experimental system according to claim 1, it is characterized in that: described test section (T.S) is in series by three sections 2000mm double-tube heat exchangers, interior pipe is a copper pipe to be tested, outer tube is an internal diameter 15mmPPR pipe, the PPR external diameter of pipe is 20mm, connects a copper pipe, wall thickness 3mm between PPR pipe and the interior pipe, copper pipe and PPR glass cement adhesion, PPR pipe overcoat is a stainless-steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200706546U CN201397242Y (en) | 2009-04-17 | 2009-04-17 | Evaporation experimental system in copper pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200706546U CN201397242Y (en) | 2009-04-17 | 2009-04-17 | Evaporation experimental system in copper pipe |
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| Publication Number | Publication Date |
|---|---|
| CN201397242Y true CN201397242Y (en) | 2010-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200706546U Expired - Fee Related CN201397242Y (en) | 2009-04-17 | 2009-04-17 | Evaporation experimental system in copper pipe |
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| CN (1) | CN201397242Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157763A (en) * | 2016-08-26 | 2016-11-23 | 上海理工大学 | Biphase boiling experiment porch in the single tube of small-bore |
| CN110596184A (en) * | 2019-10-14 | 2019-12-20 | 上海海洋大学 | Single-tube in-tube boiling experimental device |
-
2009
- 2009-04-17 CN CN2009200706546U patent/CN201397242Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157763A (en) * | 2016-08-26 | 2016-11-23 | 上海理工大学 | Biphase boiling experiment porch in the single tube of small-bore |
| CN110596184A (en) * | 2019-10-14 | 2019-12-20 | 上海海洋大学 | Single-tube in-tube boiling experimental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20110417 |