CN106932214B - Heat exchanger performance and energy efficiency test platform - Google Patents
Heat exchanger performance and energy efficiency test platform Download PDFInfo
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- CN106932214B CN106932214B CN201611198909.8A CN201611198909A CN106932214B CN 106932214 B CN106932214 B CN 106932214B CN 201611198909 A CN201611198909 A CN 201611198909A CN 106932214 B CN106932214 B CN 106932214B
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention relates to a heat exchanger performance and energy efficiency test platform, which comprises a heat source part, a steam source part, a first mixer, a second mixer, an air source part, a cold source part, a shell-and-tube heat exchanger, a first separator, a shell-and-tube double-tube heat exchanger test component, a condensation heat exchanger, a boiling heat exchanger, a first water cooler, a second separator, a steam condenser and a second water cooler; the heat exchanger performance and energy efficiency testing platform can test the heat transfer performance and fluid flow resistance performance of the shell-and-tube type double-pipe heat exchanger, the condensation heat exchanger and the boiling heat exchanger respectively, does not occupy a large space, reduces the production cost, has stable and reliable testing data, meets the actual measurement requirements, and has good application and development prospects.
Description
Technical Field
The invention relates to a heat exchanger performance and energy efficiency test platform.
Background
Heat exchangers, also known as heat exchangers, are devices used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements, and are one industrial application of convective and conductive heat transfer. The heat exchangers can be classified in different ways; the operation process can be divided into three categories of dividing wall type, mixed type and heat accumulating type; the degree of compactness of the surface can be divided into two types, compact and non-compact. In order to better meet the actual development and requirements, the heat exchanger needs to be tested for heat transfer performance and fluid flow resistance performance so as to improve the heat exchanger or better nourish the heat exchanger, but because of various heat exchangers, each heat exchanger needs to be tested by using one testing device, thus the testing cost is high, meanwhile, the occupied space is large, the on-site installation test is not facilitated, and a plurality of inconveniences are brought to the actual application.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a heat exchanger performance and energy efficiency test platform which can test the heat transfer performance and the fluid flow resistance performance of a shell-and-tube heat exchanger, a shell-and-tube double-pipe heat exchanger, a condensation heat exchanger and a boiling heat exchanger respectively.
In order to achieve the above purpose, the invention adopts the following technical scheme: a heat exchanger performance and energy efficiency test platform comprises a heat source part, a steam source part, a first mixer, a second mixer, an air source part, a cold source part, a shell-and-tube heat exchanger, a first separator, a shell-and-tube double-tube heat exchanger test assembly, a condensation heat exchanger, a boiling heat exchanger, a first water cooler, a second separator, a steam condenser and a second water cooler; the heat source part consists of a hot water tank, a hot water circulating pump, a hot water heater, a hot water separator and a heat source vortex shedding flowmeter which are sequentially communicated; the heat source vortex shedding flowmeter is connected with the first mixer; the steam source part comprises an electric heating steam boiler, a branch cylinder, a steam separator and a steam vortex shedding flowmeter which are sequentially communicated; the outlet of the steam vortex shedding flowmeter flows into a boiling first inlet pipeline and a boiling second mixer of the boiling heat exchanger respectively; the air source part consists of a screw air compressor, an air storage tank, a compressed air heater, a compressed air distributor and an air vortex shedding flowmeter which are sequentially communicated; the air vortex shedding flowmeter is respectively communicated with the first mixer and the second mixer; the cold source part consists of a cooling water tank, a closed cooling tower, a cooling water separator and a cooling water vortex street flowmeter which are sequentially communicated; a first shell-and-tube inlet pipeline and a second shell-and-tube inlet pipeline on the shell-and-tube heat exchanger are respectively communicated with the first mixer and the cooling water vortex shedding flowmeter, and a first shell-and-tube outlet pipeline and a second shell-and-tube outlet pipeline are respectively communicated with the first separator and the cooling water tank; the first shell-and-tube inlet pipeline is provided with a first shell-and-tube inlet temperature measuring point and a first shell-and-tube inlet pressure measuring point; the second shell-and-tube inlet pipeline is provided with a second shell-and-tube inlet temperature measuring point and a second shell-and-tube inlet pressure measuring point; the first shell-and-tube outlet pipeline and the second shell-and-tube outlet pipeline are provided with shell-and-tube outlet temperature measuring points; a shell-and-tube differential pressure measuring point is arranged between the first shell-and-tube inlet pipeline and the first shell-and-tube outlet pipeline and between the second shell-and-tube inlet pipeline and the second shell-and-tube outlet pipeline; the shell-and-tube type double-pipe heat exchanger test assembly is formed by connecting two shell-and-tube type double-pipe heat exchangers in parallel; a first sleeve inlet pipeline and a second sleeve inlet pipeline on the shell-and-tube sleeve heat exchanger are respectively connected with the first mixer and the cooling water vortex shedding flowmeter; a first sleeve outlet pipeline and a second sleeve outlet pipeline on the shell-and-tube sleeve heat exchanger are respectively connected with the first separator and the cooling water tank; a first sleeve inlet temperature measuring point is arranged on the first sleeve inlet pipeline; a first outlet temperature measuring point of the sleeve is arranged on the first outlet pipeline of the sleeve; a sleeve second inlet temperature measuring point is arranged on the sleeve second inlet pipeline; a sleeve second outlet temperature measuring point is arranged on the sleeve second outlet pipeline; a sleeve differential pressure measuring point is arranged between the sleeve first inlet pipeline and the sleeve first outlet pipeline and between the sleeve second inlet pipeline and the sleeve second outlet pipeline; a condensation first inlet pipeline and a condensation second inlet pipeline on the condensation heat exchanger are respectively connected with the second mixer and the cooling water vortex street flowmeter; a condensation first outlet pipeline and a condensation second outlet pipeline on the condensation heat exchanger are respectively connected with the second separator and the cooling water tank; a condensation first inlet temperature measuring point and a condensation first inlet pressure measuring point are arranged on the condensation first inlet pipeline; a condensation first outlet temperature measuring point is arranged on the condensation first outlet pipeline; a condensation second inlet temperature measuring point and a condensation second inlet pressure measuring point are arranged on the condensation second inlet pipeline; a condensation second outlet temperature measuring point is arranged on the condensation second outlet pipeline; a condensation pressure difference measuring point is arranged between the condensation first inlet pipeline and the condensation first outlet pipeline and between the condensation second inlet pipeline and the condensation second outlet pipeline; the boiling second inlet pipeline and the boiling first inlet pipeline on the boiling heat exchanger are respectively communicated with the first mixer and the steam vortex shedding flowmeter; a boiling first outlet pipeline and a boiling second outlet pipeline on the boiling heat exchanger are respectively connected with the second separator and the first water cooler; the boiling first inlet pipeline is provided with a boiling first inlet temperature measuring point and a boiling first inlet pressure measuring point; the boiling first outlet pipeline is provided with a boiling first outlet temperature measuring point; the boiling second inlet pipeline is provided with a boiling second inlet temperature measuring point and a boiling second inlet pressure measuring point; a boiling second outlet temperature measuring point is arranged on the boiling second outlet pipeline; a boiling pressure difference measuring point is arranged between the boiling first inlet pipeline and between the boiling second inlet pipeline and the boiling second inlet pipeline; the upper end and the lower end of the second separator are respectively communicated with a steam condenser and a second water cooler; the inlet and the outlet of the steam condenser are respectively connected with the closed cooling tower and the cooling water tank; the inlet and the outlet of the second water cooler are respectively connected with the closed cooling tower and the cooling water tank; the inlet and the outlet of the first water cooler are respectively connected with the closed cooling tower and the cooling water tank; the first separator is also connected with a hot water tank; the split cylinders are also respectively connected with the hot water heater and the first inlet pipeline of the sleeve of the shell-and-tube sleeve heat exchanger.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the heat exchanger performance and energy efficiency testing platform of the scheme of the invention can respectively test the heat transfer performance and fluid flow resistance performance of the shell-and-tube type double-pipe heat exchanger, the shell-and-tube type heat exchanger, the condensation heat exchanger and the boiling heat exchanger, does not occupy a large space, reduces the production cost, has stable and reliable testing data, meets the actual measurement requirements, and has better application and development prospects.
Drawings
The technical scheme of the invention is further described below with reference to the accompanying drawings:
FIG. 1 is a structural flow chart of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 1;
FIG. 5 is an enlarged view of a portion of FIG. 1;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is an enlarged view of a portion of FIG. 5;
FIG. 8 is an enlarged view of a portion of FIG. 5;
FIG. 9 is an enlarged view of a portion of FIG. 5;
wherein: 1. a hot water tank; 2. a hot water circulation pump; 3. a hot water heater; 4. a hot water separator; 5. a heat source vortex shedding flowmeter; 6. an electrically heated steam boiler; 7. a split cylinder; 8. a steam separator; 9. a steam vortex shedding flowmeter; 10. screw air compressor; 11. a gas storage tank; 12. a compressed air heater; 13. a compressed air separator; 14. an air vortex shedding flowmeter; 15. a cooling water tank; 16. a closed cooling tower; 17. a cooling water separator; 18. a cooling water vortex shedding flowmeter; 28. a first shell-and-tube outlet tube; 29. a second shell-and-tube outlet tube; 30. a shell-and-tube heat exchanger; 31. a first shell-and-tube inlet line; 32. a second shell-and-tube inlet line; 33. a first separator; 34. a first shell-and-tube inlet temperature measurement point; 35. a first shell-and-tube inlet pressure measurement; 36. a second shell-and-tube inlet temperature measurement point; 37. a second shell-and-tube inlet pressure measurement; 38. a shell-and-tube outlet temperature measurement point; 39. a shell-and-tube differential pressure measurement point; 41. a shell-and-tube double-pipe heat exchanger; 42. a sleeve first inlet line; 43. a sleeve second inlet line; 44. a sleeve first outlet line; 45. a sleeve second outlet line; 46. a first inlet temperature measurement point of the sleeve; 47. a sleeve first outlet temperature measurement point; 48. a second inlet temperature measurement point of the sleeve; 49. a second outlet temperature measurement point of the sleeve; 50. a sleeve differential pressure measurement point; 51. a condensing heat exchanger; 52. a second separator; 53. condensing the first inlet line; 54. condensing the second inlet line; 55. condensing the first outlet line; 56. condensing the second outlet line; 57. condensing the first inlet temperature measurement point; 58. condensing the first inlet pressure measurement point; 59. condensing the first outlet temperature measurement point; 60. condensing the second inlet temperature measurement point; 61. condensing the second inlet pressure measurement point; 62. condensing the second outlet temperature measurement point; 63. a differential coagulation pressure measurement point; 71. a boiling heat exchanger; 72. boiling the first inlet line; 73. boiling the second inlet line; 74. a first water cooler; 75. boiling the first inlet temperature measurement point; 76. boiling the first inlet pressure measurement point; 77. boiling the first outlet temperature measurement point; 78. boiling a second inlet temperature measurement point; 79. boiling a second inlet pressure measurement point; 80. boiling a second outlet temperature measurement point; 81. boiling pressure difference measuring point; 90. a steam condenser; 82. a second water cooler; 83. boiling the first outlet line; 84. the second outlet line is boiled.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
The heat exchanger performance and energy efficiency testing platform according to the present invention as shown in fig. 1 to 9 comprises a heat source part, a steam source part, a first mixer, a second mixer, an air source part, a cold source part, a shell-and-tube heat exchanger 30, a first separator 33, a shell-and-tube heat exchanger testing component, a condensation heat exchanger 51, a boiling heat exchanger 71, a first water cooler 74, a second separator 52, a steam condenser 90 and a second water cooler 82; the heat source part consists of a hot water tank 1, a hot water circulating pump 2, a hot water heater 3, a hot water separator 4 and a heat source vortex shedding flowmeter 5 which are sequentially communicated; the heat source vortex shedding flowmeter 5 is connected with the first mixer; the steam source part comprises an electric heating steam boiler 6, a branch cylinder 7, a steam branch device 8 and a steam vortex shedding flowmeter 9 which are sequentially communicated; the outlet of the steam vortex flowmeter 9 flows into a boiling first inlet pipeline 72 of the boiling heat exchanger 71 and a second mixer respectively; the air source part consists of a screw air compressor 10, an air storage tank 11, a compressed air heater 12, a compressed air separator 13 and an air vortex shedding flowmeter 14 which are sequentially communicated; the air vortex shedding flowmeter 14 is respectively communicated with the first mixer and the second mixer; the cold source part is composed of a cooling water tank 15, a closed cooling tower 16, a cooling water separator 17 and a cooling water vortex shedding flowmeter 18 which are communicated in sequence.
A first shell-and-tube inlet pipeline 31 and a second shell-and-tube inlet pipeline 32 on the shell-and-tube heat exchanger 30 are respectively communicated with the first mixer and the cooling water vortex street flowmeter 18, and a first shell-and-tube outlet pipe 28 and a second shell-and-tube outlet pipe 29 are respectively communicated with the first separator 33 and the cooling water tank 15; the first shell-and-tube inlet pipeline 31 is provided with a first shell-and-tube inlet temperature measuring point 34 and a first shell-and-tube inlet pressure measuring point 35; a second shell-and-tube inlet temperature measurement point 36 and a second shell-and-tube inlet pressure measurement 37 are arranged on the second shell-and-tube inlet pipeline 32; the first shell-and-tube outlet pipeline 28 and the second shell-and-tube outlet pipeline 29 are provided with shell-and-tube outlet temperature measuring points 38; a shell-and-tube differential pressure measurement point 39 is provided between the first shell-and-tube inlet line 31 and the first shell-and-tube outlet line 28 and the second shell-and-tube inlet line 32 and the second shell-and-tube outlet line 29.
The shell-and-tube double-pipe heat exchanger testing component is formed by connecting two shell-and-tube double-pipe heat exchangers 41 in parallel; a first sleeve inlet pipeline 42 and a second sleeve inlet pipeline 43 on the shell-and-tube sleeve heat exchanger 41 are respectively connected with the first mixer and the cooling water vortex shedding flowmeter 18; the first outlet pipeline 44 and the second outlet pipeline 45 of the sleeve of the shell-and-tube sleeve heat exchanger 41 are respectively connected with the first separator 33 and the cooling water tank 15; a sleeve first inlet temperature measurement point 46 is arranged on the sleeve first inlet pipeline 42; a first outlet temperature measuring point 47 of the sleeve is arranged on the first outlet pipeline 44 of the sleeve; a sleeve second inlet temperature measuring point 48 is arranged on the sleeve second inlet pipeline 43; a sleeve second outlet temperature measuring point 49 is arranged on the sleeve second outlet pipeline 45; a cannula pressure difference measuring point 50 is arranged between the cannula first inlet conduit 42 and the cannula first outlet conduit 44 and between the cannula second inlet conduit 43 and the cannula second outlet conduit 45.
A condensation first inlet pipeline 53 and a condensation second inlet pipeline 54 on the condensation heat exchanger 51 are respectively connected with the second mixer and the cooling water vortex street flowmeter 18; a condensation first outlet pipeline 55 and a condensation second outlet pipeline 56 on the condensation heat exchanger 51 are respectively connected with the second separator 52 and the cooling water tank 15; the first condensing inlet pipeline 53 is provided with a first condensing inlet temperature measuring point 57 and a first condensing inlet pressure measuring point 58; the condensation first outlet pipeline 55 is provided with a condensation first outlet temperature measuring point 59; the condensation second inlet pipeline 54 is provided with a condensation second inlet temperature measuring point 60 and a condensation second inlet pressure measuring point 61; a condensation second outlet temperature measuring point 62 is arranged on the condensation second outlet pipeline 56; a condensation pressure difference measuring point 63 is arranged between the condensation first inlet pipe 53 and the condensation first outlet pipe 55 and between the condensation second inlet pipe 54 and the condensation second outlet pipe 56.
A boiling first inlet pipeline 72 and a boiling second inlet pipeline 73 on the boiling heat exchanger 71 are respectively communicated with the first mixer and the steam vortex shedding flowmeter 9; the boiling first outlet line 83 and the boiling second outlet line 84 on the boiling heat exchanger 71 are connected to the second separator 52 and the first water cooler 74, respectively; the boiling first inlet pipeline 72 is provided with a boiling first inlet temperature measuring point 75 and a boiling first inlet pressure measuring point 76; the boiling first outlet pipeline 83 is provided with a boiling first outlet temperature measuring point 77; the boiling second inlet pipeline 73 is provided with a boiling second inlet temperature measuring point 78 and a boiling second inlet pressure measuring point 79; a boiling second outlet temperature measurement point 80 is provided on the boiling second outlet line 84; a boiling pressure difference measuring point 81 is arranged between the boiling first inlet pipe 72 and the boiling first outlet pipe 83 and between the boiling second inlet pipe 73 and the boiling second outlet pipe 84.
The upper end and the lower end of the second separator 52 are respectively communicated with a steam condenser 90 and a second water cooler 82; the inlet and the outlet of the steam condenser 90 are respectively connected with the closed cooling tower 16 and the cooling water tank 15; the inlet and the outlet of the second water cooler 82 are respectively connected with the closed cooling tower 16 and the cooling water tank 15; the inlet and the outlet of the first water cooler 74 are respectively connected with the closed cooling tower 16 and the cooling water tank 15; the first separator 33 is also connected to the hot water tank 1; the split cylinders 7 are also connected to the hot water heater 3 and the shell-and-tube heat exchanger 41 respectively, with the first inlet pipe 42.
The invention is divided into three test sections, namely a phase-change-free heat exchanger test section, a condensing heat exchanger test section and a boiling heat exchanger test section; the invention is mainly divided into four pipelines: an air-steam pipeline, an air-hot water pipeline, a steam pipeline and a cooling water pipeline.
In the testing section of the phase-change-free heat exchanger, the phase-change-free heat exchanger comprises a shell-and-tube heat exchanger and two shell-and-tube sleeve heat exchangers, and the operation flow during testing is as follows: in the air-hot water pipeline, the hot water pump pumps hot water out of the hot water tank, and the hot water enters the hot water heater for preheating after being controlled by the valve. The preheated hot water with a certain temperature enters a hot water separator, and enters a first mixer after being metered by a hot water vortex shedding flowmeter. Air is provided by a screw air compressor, is preheated by a compressed air heater after being buffered by an air storage tank, enters a compressed air separator after being preheated, and enters a first mixer to be mixed with hot water after being metered by an air vortex shedding flowmeter. Part of the mixed air-hot water mixture enters a first shell-and-tube inlet pipeline of the shell-and-tube heat exchanger, is cooled by cooling water flowing out of a cooling water tank and entering from a second shell-and-tube inlet pipeline, and finally flows out of a first shell-and-tube outlet pipeline and enters a first separator; the other part of the liquid enters the first inlet pipeline of the sleeve of the two shell-and-tube sleeve heat exchangers, and after cooling by cooling water entering from the second inlet pipeline of the sleeve, the liquid flowing out of the first inlet pipeline of the sleeve and the liquid flowing out of the first shell-and-tube outlet pipeline enter the first separator together; the first separator separates the hot water from the compressed air, the air being discharged outside directly from the air evacuation port of the separator, and the hot water being returned to the hot water tank for reuse. In the cooling water pipeline, a cold water pump extracts cooling water from a cooling water tank, and the cooling water enters a cooling water separator after being cooled by a closed cooling tower. Part of the cooling water metered by the cooling water vortex shedding flowmeter enters a second shell-and-tube inlet pipeline of the shell-and-tube heat exchanger, flows out from a second shell-and-tube outlet pipeline and returns to the cooling water tank; part of the water enters the second inlet pipeline of the sleeve of the two shell-and-tube sleeve heat exchangers, flows out of the second outlet pipeline of the sleeve, and then merges and returns to the cooling water tank.
After the phase-change-free heat exchanger test section runs stably, measuring the following measuring points of the shell-and-tube heat exchanger: the heat transfer performance and the fluid flow resistance performance of the shell-and-tube heat exchanger are calculated according to the records of the flow in the heat source vortex shedding flowmeter, the air vortex shedding flowmeter and the cooling water vortex shedding flowmeter;
the following measuring points of the shell-and-tube double-pipe heat exchanger are measured: and calculating the heat transfer performance and the fluid flow resistance performance of the shell-and-tube type double-tube heat exchanger according to the records of the flow in the heat source vortex shedding flowmeter, the air vortex shedding flowmeter and the cooling water vortex shedding flowmeter.
The system flow of the condensing heat exchanger test section is as follows: in the steam-air pipeline, high-temperature and high-pressure steam generated by an electric heating steam boiler is split by a split cylinder and then enters a steam splitter. And the mixture enters a second mixer after being metered by a steam vortex shedding flowmeter. The air is provided by a screw air compressor, is preheated by a compressed air heater after being buffered by an air storage tank, and the preheated compressed air enters a compressed air separator, is metered by an air vortex shedding flowmeter and then enters a second mixer to be mixed with steam. The mixed steam-air mixture enters a condensation first inlet pipeline of the condensation heat exchanger, and air flow mixed liquid cooled by cooling water flowing in from a condensation second inlet pipeline flows out from a condensation first outlet pipeline and enters a second separator. The second separator discharges the uncondensed steam and air from the upper outlet, and the mixture of the steam and the air enters the steam condenser and is discharged into the water discharge tank after being cooled by cooling water. The second separator discharges the condensed water from the lower outlet, enters the second water cooler, and is discharged into the water discharge tank after being cooled by the cooling water. In the steam pipeline, high-temperature and high-pressure steam generated by an electric heating steam boiler is split by a split cylinder and directly enters the first inlet pipeline of the sleeve of the two shell-and-tube sleeve heat exchangers, cooling water flowing in through the second inlet pipeline of the sleeve is cooled and then enters the first separator, part of incompletely condensed steam is discharged outside, and condensed water returns to the hot water tank.
After the operation of the condensing heat exchanger test section was stable, the following measurement points were measured: the first inlet temperature measuring point, the first inlet pressure measuring point, the first outlet temperature measuring point, the second inlet pressure measuring point, the second outlet temperature measuring point and the differential pressure measuring point are condensed, and then the heat transfer performance and the fluid flow resistance performance of the condensing heat exchanger are calculated according to the records of the flow in the air vortex shedding flowmeter, the steam vortex shedding flowmeter and the cooling water vortex shedding flowmeter.
The system flow of the boiling heat exchanger test section is as follows: in the hot water-air pipeline, the hot water pump pumps hot water out of the hot water tank, and the hot water enters the hot water heater for preheating after being controlled by the valve. The preheated hot water with a certain temperature enters a hot water separator, and enters a first mixer after being metered by a hot water vortex shedding flowmeter. Air is provided by a screw air compressor, is preheated by a compressed air heater after being buffered by an air storage tank, enters a compressed air separator after being preheated, and enters a first mixer to be mixed with hot water after being metered by an air vortex shedding flowmeter. The mixed air-hot water mixture enters a boiling first inlet pipeline of the boiling heat exchanger, is heated by steam entering the boiling heat exchanger from a boiling second inlet pipeline, flows out of a first outlet pipeline of the robber, and enters a second separator. The second separator discharges steam and air from the upper outlet, and the mixture of steam and air enters the steam condenser and is discharged into the drainage tank after being cooled by cooling water. The second separator discharges the hot water from the lower outlet, enters the water cooler, and is discharged into the water discharge tank after being cooled by the cooling water. In the steam pipeline, high-temperature and high-pressure steam generated by an electric heating steam boiler is split by a split cylinder, enters a steam splitter, is metered by a steam vortex shedding flowmeter, enters a boiling second inlet pipeline of a boiling heat exchanger, heats hot water-air flowing into the boiling heat exchanger from the boiling first inlet pipeline, and condensed water of the steam flows out from a pipe side outlet, enters a water cooler, is cooled and is discharged into a drainage tank.
After the boiling heat exchanger test section was run stable, the following measurement points were measured: the heat transfer performance and the fluid flow resistance performance of the boiling heat exchanger are calculated according to the records of the flow in the heat source vortex shedding flowmeter, the steam vortex shedding flowmeter and the air vortex shedding flowmeter.
The heat exchanger performance and energy efficiency testing platform can test the heat transfer performance and fluid flow resistance performance of the shell-and-tube type double-pipe heat exchanger, the condensation heat exchanger and the boiling heat exchanger respectively, does not occupy a large space, reduces the production cost, has stable and reliable testing data, meets the actual measurement requirements, and has good application and development prospects.
The foregoing is merely a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the invention.
Claims (1)
1. A heat exchanger performance and energy efficiency test platform, its characterized in that: the device comprises a heat source part, a steam source part, a first mixer, a second mixer, an air source part, a cold source part, a shell-and-tube heat exchanger, a first separator, a shell-and-tube double-tube heat exchanger test assembly, a condensation heat exchanger, a boiling heat exchanger, a first water cooler, a second separator, a steam condenser and a second water cooler;
the heat source part consists of a hot water tank, a hot water circulating pump, a hot water heater, a hot water separator and a heat source vortex shedding flowmeter which are sequentially communicated; the heat source vortex shedding flowmeter is connected with the first mixer; the steam source part comprises an electric heating steam boiler, a branch cylinder, a steam separator and a steam vortex shedding flowmeter which are sequentially communicated; the outlet of the steam vortex shedding flowmeter flows into a boiling first inlet pipeline and a boiling second mixer of the boiling heat exchanger respectively; the air source part consists of a screw air compressor, an air storage tank, a compressed air heater, a compressed air distributor and an air vortex shedding flowmeter which are sequentially communicated; the air vortex shedding flowmeter is respectively communicated with the first mixer and the second mixer; the cold source part consists of a cooling water tank, a closed cooling tower, a cooling water separator and a cooling water vortex street flowmeter which are sequentially communicated;
a first shell-and-tube inlet pipeline and a second shell-and-tube inlet pipeline on the shell-and-tube heat exchanger are respectively communicated with the first mixer and the cooling water vortex shedding flowmeter, and a first shell-and-tube outlet pipeline and a second shell-and-tube outlet pipeline are respectively communicated with the first separator and the cooling water tank; the first shell-and-tube inlet pipeline is provided with a first shell-and-tube inlet temperature measuring point and a first shell-and-tube inlet pressure measuring point; the second shell-and-tube inlet pipeline is provided with a second shell-and-tube inlet temperature measuring point and a second shell-and-tube inlet pressure measuring point; the first shell-and-tube outlet pipeline and the second shell-and-tube outlet pipeline are provided with shell-and-tube outlet temperature measuring points; a shell-and-tube differential pressure measuring point is arranged between the first shell-and-tube inlet pipeline and the first shell-and-tube outlet pipeline and between the second shell-and-tube inlet pipeline and the second shell-and-tube outlet pipeline;
the shell-and-tube type double-pipe heat exchanger test assembly is formed by connecting two shell-and-tube type double-pipe heat exchangers in parallel; a first sleeve inlet pipeline and a second sleeve inlet pipeline on the shell-and-tube sleeve heat exchanger are respectively connected with the first mixer and the cooling water vortex shedding flowmeter; a first sleeve outlet pipeline and a second sleeve outlet pipeline on the shell-and-tube sleeve heat exchanger are respectively connected with the first separator and the cooling water tank; a first sleeve inlet temperature measuring point is arranged on the first sleeve inlet pipeline; a first outlet temperature measuring point of the sleeve is arranged on the first outlet pipeline of the sleeve; a sleeve second inlet temperature measuring point is arranged on the sleeve second inlet pipeline; a sleeve second outlet temperature measuring point is arranged on the sleeve second outlet pipeline; a sleeve differential pressure measuring point is arranged between the sleeve first inlet pipeline and the sleeve first position pipeline and between the sleeve second inlet pipeline and the sleeve second outlet pipeline;
a condensation first inlet pipeline and a condensation second inlet pipeline on the condensation heat exchanger are respectively connected with the second mixer and the cooling water vortex street flowmeter; a condensation first outlet pipeline and a condensation second outlet pipeline on the condensation heat exchanger are respectively connected with the second separator and the cooling water tank; a condensation first inlet temperature measuring point and a condensation first inlet pressure measuring point are arranged on the condensation first inlet pipeline; a condensation first outlet temperature measuring point is arranged on the condensation first outlet pipeline; a condensation second inlet temperature measuring point and a condensation second inlet pressure measuring point are arranged on the condensation second inlet pipeline; a condensation second outlet temperature measuring point is arranged on the condensation second outlet pipeline; a condensation pressure difference measuring point is arranged between the condensation first inlet pipeline and the condensation first outlet pipeline and between the condensation second inlet pipeline and the condensation second outlet pipeline;
the boiling second inlet pipeline and the boiling first inlet pipeline on the boiling heat exchanger are respectively communicated with the first mixer and the steam vortex shedding flowmeter; a boiling first outlet pipeline and a boiling second outlet pipeline on the boiling heat exchanger are respectively connected with the second separator and the first water cooler; the boiling first inlet pipeline is provided with a boiling first inlet temperature measuring point and a boiling first inlet pressure measuring point; the boiling first outlet pipeline is provided with a boiling first outlet temperature measuring point; the boiling second inlet pipeline is provided with a boiling second inlet temperature measuring point and a boiling second inlet pressure measuring point; a boiling second outlet temperature measuring point is arranged on the boiling second outlet pipeline; a boiling pressure difference measuring point is arranged between the boiling first inlet pipeline and between the boiling second inlet pipeline and the boiling second inlet pipeline;
the upper end and the lower end of the second separator are respectively communicated with a steam condenser and a second water cooler; the inlet and the outlet of the steam condenser are respectively connected with the closed cooling tower and the cooling water tank; the inlet and the outlet of the second water cooler are respectively connected with the closed cooling tower and the cooling water tank; the inlet and the outlet of the first water cooler are respectively connected with the closed cooling tower and the cooling water tank; the first separator is also connected with a hot water tank; the split cylinders are also respectively connected with the hot water heater and the first inlet pipeline of the sleeve of the shell-and-tube sleeve heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198909.8A CN106932214B (en) | 2016-12-22 | 2016-12-22 | Heat exchanger performance and energy efficiency test platform |
Applications Claiming Priority (1)
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| KR102628369B1 (en) | 2017-09-19 | 2024-01-23 | 에코랍 유에스에이 인코퍼레이티드 | Cooling water monitoring and control system |
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