CN111238842A - Heat exchanger thermal efficiency comparison test device and test method - Google Patents
Heat exchanger thermal efficiency comparison test device and test method Download PDFInfo
- Publication number
- CN111238842A CN111238842A CN201911366251.0A CN201911366251A CN111238842A CN 111238842 A CN111238842 A CN 111238842A CN 201911366251 A CN201911366251 A CN 201911366251A CN 111238842 A CN111238842 A CN 111238842A
- Authority
- CN
- China
- Prior art keywords
- heat
- medium circulating
- heat exchanger
- cold medium
- cold
- 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.)
- Pending
Links
Images
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
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat exchanger thermal efficiency comparison test device which comprises a cold medium circulating system and a heat medium circulating system. The cold medium circulating system comprises a cold medium circulating pipe, the cold medium circulating pipe comprises a cold medium circulating main pipe and a cold medium circulating branch pipe group, the cold medium circulating branch pipe group consists of at least two cold medium branch pipes, and the cold medium circulating main pipe is respectively connected with each cold medium circulating branch pipe; the heat medium circulating system comprises a heat medium circulating pipe, the heat medium circulating pipe comprises a heat medium circulating main pipe and a heat medium circulating branch pipe group, the heat medium circulating branch pipe group consists of at least two heat medium branch pipes, the heat medium circulating main pipe is respectively connected with each heat medium circulating branch pipe, and the cold medium branch pipe and the heat medium branch pipe form a heat exchange structure. The invention can realize the collection and the efficiency comparison test of basic data of the plurality of heat exchangers in flow, temperature, differential pressure and the like by connecting the cold medium branch pipe and the hot medium branch pipe with the plurality of heat exchangers.
Description
Technical Field
The invention belongs to the technical field of energy conservation and consumption reduction, relates to a heat exchanger thermal efficiency contrast test device, and particularly relates to a heat exchange efficiency detection test method for industrial and civil heat exchangers.
Background
The heat exchanger is a device for exchanging heat between cold fluid and hot fluid, is not only a device which is generally used for ensuring process flow and conditions, but also a main device for developing and utilizing industrial secondary energy, realizing heat recovery and saving energy, is very common in industrial production, is widely applied to various departments of national economy, and relates to industries including heaters, coolers and condensers of power, chemical industry, petroleum, metallurgy, nuclear energy, aerospace, aviation, food, textile, heating, refrigeration, electric power, machinery, energy, coal, heat and the like. Based on the stable requirements of various industries on heat exchangers, the heat exchanger industry in China still keeps stable growth in a future period, and the operation scale of the heat exchanger industry in China is expected to reach 1500 hundred million yuan by 2020.
Nowadays, due to the increasing exhaustion of fuel energy, the efficient utilization of energy and the energy saving and consumption reduction become more and more important. With the deep development of the industry in China, the technical requirements on energy utilization, development and energy conservation are continuously improved, so that the technical requirements on the heat exchanger are also continuously enhanced, the attention degree on the heat exchange capacity and the heat exchange efficiency of the heat exchanger is also gradually improved, and the schedule is also provided for the comprehensive evaluation of the performance and the efficiency of the heat exchanger. Therefore, the performance and efficiency monitoring of the heat exchanger of the industrial important equipment is very important, and the performance and efficiency comparison test is not the direct comparison of the heat exchange coefficient of the heat exchanger and the evaluation of the heat exchange capacity and the flow resistance, but the comparison of the technical performance and the economical efficiency of the energy utilization of the heat exchanger, so that the performance and efficiency comparison test has very important guiding significance and practical effect on industrial production and popularization and use of the energy-saving heat exchanger.
Chinese patent CN 205192994U A Heat exchanger thermal Performance detection device, provides a heat exchanger thermal efficiency detection device and detection method, mainly used for the detection of hot gas heat exchanger and the effective utilization of waste heat; patent CN206531655U "a heat exchanger efficiency check out test set", provide a heat exchanger efficiency check out test set, the device single heat exchanger can realize the collection of basic data such as flow, temperature, differential pressure, and calculate in real time and show the thermal property and the resistance characteristic such as total heat transfer coefficient of heat exchanger to be used for judging the height of heat exchanger energy efficiency value fast, infer the degree that heat exchanger heat transfer capacity is good or bad according to this, as whether the heat exchanger needs to overhaul or unpack and get rid of maintenance work such as inside dirt one and judge the basis. The invention simultaneously carries out comparison test on the two heat exchangers, quickly judges the performance and efficiency difference of the two heat exchangers, can also be used for long-period comparison operation of products of the coated heat exchanger and the uncoated heat exchanger, carries out comparison test on scaling and corrosivity, carries out performance and efficiency comparison test, and provides basis for product decision.
Disclosure of Invention
The invention provides a heat exchanger thermal efficiency comparison test device, which is used for realizing comparison tests of thermal efficiency of different heat exchangers.
The invention provides a heat exchanger thermal efficiency comparison test device, which comprises a cold medium circulating system and a heat medium circulating system, wherein the cold medium circulating system comprises a cold medium circulating pipe, the cold medium circulating pipe comprises a cold medium circulating main pipe and a cold medium circulating branch pipe group, the cold medium circulating branch pipe group consists of at least two cold medium branch pipes, the cold medium circulating main pipe is respectively connected with each cold medium circulating branch pipe, the heat medium circulating system comprises a heat medium circulating pipe, the heat medium circulating pipe comprises a heat medium circulating main pipe and a heat medium circulating branch pipe group, the heat medium circulating branch pipe group consists of at least two heat medium branch pipes, the heat medium circulating main pipe is respectively connected with each heat medium circulating branch pipe, the cold medium branch pipes and the heat medium branch pipes form a heat exchange structure, and the heat exchange structure is also provided with a heat exchanger, the heat exchanger is respectively connected with the hot medium branch pipe and the cold medium branch pipe.
Further, the cold medium circulating system also comprises a cold medium circulating pump and a cooling machine, and the cold medium circulating pump and the cooling machine are arranged on the cold medium circulating main pipe.
Furthermore, the heat medium circulating system also comprises a heat medium circulating pump and a heater, and the heat medium circulating pump and the heater are arranged on the heat medium circulating main pipe.
Further, the cooler is a compression type cooler or an absorption type refrigeration cooler.
Further, the heater is an electric heater, an electromagnetic heater, an induction heater or a steam heater.
Further, the cold medium circulation main pipe and/or the hot medium circulation main pipe are/is also provided with valves, and the valves are selected from one or more of ball valves, gate valves, butterfly valves, plunger valves and stop valves.
Further, a flow meter is arranged on the cold medium circulation main pipe and/or the heat medium circulation main pipe, and the flow meter is selected from one or more of a water meter and a flow meter.
Further, a flow regulating valve is further arranged on the cold medium circulation main pipe and/or the heat medium circulation main pipe, and the flow regulating valve is selected from one or more of a throttle valve, a speed regulating valve, a stop valve and a gate valve.
Furthermore, the hot medium branch pipe and/or the cold medium branch pipe are/is also provided with a measuring port.
Further, a medium adding inlet is further formed in the cold medium circulation main pipe and/or the heat medium circulation main pipe, and the medium adding inlet is formed in the highest position of the heat exchanger thermal efficiency comparison test testing device.
The invention utilizes the connection of the cold medium branch pipe and the hot medium branch pipe with two or more heat exchangers, can realize the experimental comparison of the basic data of the two or more heat exchangers on the flow, the temperature, the differential pressure and the like, and improves the accuracy of the test.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The invention provides a heat exchanger thermal efficiency comparison test device, which comprises a cold medium circulating system and a heat medium circulating system, wherein the cold medium circulating system comprises a cold medium circulating pipe 1, the cold medium circulating pipe 1 comprises a cold medium circulating main pipe 11 and a cold medium circulating branch pipe group, the cold medium circulating branch pipe group consists of at least two cold medium branch pipes 14, the cold medium circulating main pipe 11 is respectively connected with each cold medium circulating branch pipe 14, the heat medium circulating system comprises a heat medium circulating pipe 2, the heat medium circulating pipe 2 comprises a heat medium circulating main pipe 21 and a heat medium circulating branch pipe group, the heat medium circulating branch pipe group consists of at least two heat medium branch pipes 24, the heat medium circulating main pipe 21 is respectively connected with each heat medium circulating branch pipe 24, and the cold medium branch pipes 14 and the heat medium branch pipes 24 form a heat exchange structure, the heat exchange structure is also provided with a heat exchanger 3, and the heat exchanger 3 is respectively connected with the hot medium branch pipe 24 and the cold medium branch pipe 14.
Optionally, the cold medium circulation system further includes a cold medium circulation pump 12 and a cooling machine 13, and the cold medium circulation pump 12 and the cooling machine 13 are installed on the cold medium circulation main pipe 11.
In particular, the heat medium circulation system further comprises a heat medium circulation pump 22 and a heater 23, and the heat medium circulation pump 22 and the heater 23 are installed on the heat medium circulation main pipe 21.
The number of the heat medium branch pipes 24 is two, the number of the cold medium branch pipes 14 is two, the number of the heat exchangers 3 is two, and one heat medium branch pipe 24 and one cold medium branch pipe 14 are in a group and are respectively connected with the same heat exchanger 3 to form a heat exchange structure.
Optionally, the cooler 13 is a compression type cooler or an absorption type refrigeration cooler.
Optionally, the heater 23 is an electric heater, an electromagnetic heater, an induction heater or a steam heater.
Optionally, a valve is further disposed on the main cooling medium circulation pipe 11 and/or the main heating medium circulation pipe 21, and the valve is selected from one or more of a ball valve, a gate valve, a butterfly valve, a plunger valve, and a stop valve.
Wherein, the cold medium circulation main pipe 11 and the heat medium circulation main pipe 21 are both provided with valve structures.
Optionally, a flow meter is further disposed on the cold medium circulation main pipe 11 and/or the hot medium circulation main pipe 21, and the flow meter is selected from one or more of a water meter and a flow meter.
Optionally, a flow regulating valve is further disposed on the cold medium circulation main pipe 11 and/or the heat medium circulation main pipe 21, and the flow regulating valve is selected from one or more of a throttle valve, a speed regulating valve, a stop valve, and a gate valve.
Flow regulating valves are arranged on the cold medium circulating main pipe 11 and the hot medium circulating main pipe 21 and used for regulating the flowing speed of media in the cold medium circulating main pipe 11 and the hot medium circulating main pipe 21, and flow regulating valves are arranged on the hot medium branch pipe 24 and the cold medium branch pipe 14 on two sides of the heat exchanger and used for regulating the flowing speed of the media in the hot medium branch pipe 24 and the cold medium branch pipe 14.
Optionally, the hot medium branch pipe 24 and/or the cold medium branch pipe 14 are further provided with a measuring port.
Wherein, the hot medium branch pipe 24 and the cold medium branch pipe 14 are provided with measuring ports at both ends of the heat exchanger for conveniently inserting a thermometer and other detection structures.
Optionally, a medium adding inlet is further provided on the cold medium circulation main pipe 11 and/or the hot medium circulation main pipe 21, and the medium adding inlet is provided at the highest position of the heat exchanger thermal efficiency comparison test device.
The circulation process of the cold medium is as follows: cold medium is added through a medium adding inlet arranged at the high position of the cold medium circulating pipe, after the cold medium is filled, a valve arranged on the medium adding inlet is closed, other valves of the cold medium circulating system are opened, the cold medium circulating pump is started, the cold medium starts to circulate, the cold medium at the outlet of the cold medium circulating pump is divided into two parallel medium flows along a pipeline in the cold medium circulating pipe, the two parallel medium flows sequentially flow through a flow meter, a flow regulating valve and a measuring pipe, then respectively enter two heat exchanger cooling cavities with comparison from one end, then flow out from the other ends of the two heat exchanger cooling cavities with comparison, sequentially enter the measuring pipe and the flow regulating valve, finally are gathered together to return to a cooling machine, and after being cooled by the cooling machine, the cooling medium is sent to the inlet of the cold medium circulating. The circulation process can adjust the flow of the cold medium through the flow adjusting valve.
The heat medium circulation process is as follows: the heat medium is added through a medium adding inlet arranged at the high position of the heat medium circulating pipe, after the heat medium is filled, a valve arranged on the medium adding inlet is closed, other valves of the heat medium circulating system are opened, a heat medium circulating pump is started, the heat medium starts to circulate, the heat medium at the outlet of the heat medium circulating pump enters a heater, the medium is heated and flows out of the heater, the medium is divided into two parallel medium flows along a pipeline in the heat medium circulating pipe, the two parallel medium flows sequentially flow through a flow meter, a flow regulating valve and a measuring pipe, then respectively enter heating chambers of two comparison heat exchangers from one end, then flows out of the other ends of the heating chambers of the two comparison heat exchangers, sequentially enters the measuring pipe and the flow regulating valve, and finally is gathered together at the inlet of the heat medium circulating pump. The circulation process can adjust the flow of the heat medium through a flow adjusting valve.
Example (b):
and carrying out low-temperature scaling operation contrast detection tests on the titanium-based polymer alloy coated plate heat exchanger and the uncoated plate heat exchanger.
The cold medium and the hot medium in the test are both water, scale components such as calcium carbonate and iron oxide are added into the cold medium and the hot medium, the operation is carried out at the low temperature of 30-50 ℃, and the scaling rate, the heat transfer capacity and the efficiency are compared.
And (3) cold water circulation: adding tap water and calcium carbonate into a cold water storage device, opening valves arranged at two sides of the cold water storage device after adding, opening a flow regulating valve, starting a cold water centrifugal pump, and starting cold water circulation. Cold water passes through the cold water storage device, the valve, provides circulating energy through the cold water circulating pump, is cooled through the cooling machine, enters the cooling cavities of the two comparative heat exchangers from one end through the two parallel pipelines on the cooling pipeline and the rear part sequentially through the flow measuring instrument, the flow regulating valve, the pressure measuring instrument and the temperature measuring instrument on each pipeline, flows out from the other end of the cooling cavity of the two comparative heat exchangers, sequentially flows through the temperature measuring instrument and the pressure measuring instrument on each pipeline, is finally gathered together, and returns to the cold water storage device through the valve, so that high-salinity cold water circulation is realized. The flow of the cold water is regulated by a flow regulating valve in the cold water circulation process, and the temperature and the flow of the cooling water at the inlet and the outlet of the two comparative heat exchangers are recorded.
Hot water circulation: adding tap water and calcium carbonate into a hot water storage device, opening valves arranged at two sides of the hot water storage device after adding, opening a flow regulating valve, starting a hot water centrifugal pump, and starting hot water circulation. Hot water passes through the hot water storage device, the valve, provides circulating energy through the hot water circulating pump, is heated through the heater, enters the heating cavities of the two comparison heat exchangers from one end through the two parallel pipelines on the hot water circulating pipeline and the rear part sequentially through the flow measuring instrument, the flow regulating valve, the pressure measuring instrument and the temperature measuring instrument on each pipeline, flows out from the other end of the heating cavities of the two comparison heat exchangers, sequentially flows through the temperature measuring instrument and the pressure measuring instrument on each pipeline, is finally gathered together and returns to the hot water storage device through the valve, and the circulation of the high-salinity hot water is realized. The hot water circulation process adjusts the flow of the hot water through a flow adjusting valve and records the temperature and the flow of the hot water at the inlet and the outlet of the two comparative heat exchangers.
The specific test method of the embodiment of the invention is as follows:
1. at start of operation, hot side heat release: the heat exchanger with the coating is 7833.7 kcal, the heat exchanger without the coating is 8565 kcal, the ratio of the heat exchanger with the coating on the hot side to the heat exchanger without the coating is 91.4%, and the heat exchanger with the coating is 8.6% lower than that without the coating, which shows that the coating has little influence on the heat transfer of the heat exchanger on the hot side.
2. At start of run, cold side heat absorption: the heat exchanger with the coating is 7189.6 kcal, the heat exchanger without the coating is 7539.4 kcal, the ratio of the heat exchanger with the cold side heat absorption coating to the heat exchanger without the coating is 95.45%, and the heat exchanger with the coating is 4.55% lower than that without the coating, which shows that the coating has little influence on the heat transfer of the cooling side.
3. After one-week operation, the ratio of the heat release coating at the hot side to the uncoated side is 99.1%; the ratio of the heat absorption coating and the heat absorption uncoated layer on the cold side is 99.5%, and the heat exchange amount on the two sides is basically close.
4. In the second week, the scale forming agent is added at the hot water side, the hot water (400L) of the circulating system is added, 1000g of calcium carbonate and 500g of ferric oxide are added, and after one week of operation, the ratio of the heat release coating at the hot side to the uncoated side is 102.0 percent; the ratio of the heat absorption coating on the cold side to the uncoated side is 101.3%, and the heat exchange amount of the heat exchangers coated on the two sides exceeds that of the uncoated side.
5. Adding the scaling agent from the third week to the fifth week, adding 500g of magnesium sulfate, increasing the heat release amount of the hot side until the four weeks before the ratio of the heat release amount coating to the uncoated side, and slightly decreasing the heat release amount of the hot side at the fifth week; the ratio of cold side heat sink coating to no coating increased all the time, reaching 110.3% in the fifth week.
6. From the above operation, it is known that the uncoated heat exchanger is being fouled gradually, while the coated heat exchanger is not fouled, or fouled much less than the uncoated heat exchanger.
7. And (3) overhauling the scaling condition:
(1) before operation, 30 coated heat exchanger plates are weighed to obtain 17885g of total weight, a hot side is added with a fouling agent, and cold side industrial circulating water, and after operation for 38 days, 30 coated heat exchanger plates are weighed to obtain 17895g of total weight and 10g of fouling.
(2) Before operation, 31 uncoated heat exchanger plates and baffles are weighed as 18070g in total weight, and after operation for 38 days, 31 uncoated heat exchanger plates and baffles are weighed as 18290g in total weight and 220g in scale.
The data collected from comparative testing of the two heat exchangers through the apparatus are shown in tables 1 and 2.
Table 1 hot water side operation record and heat release comparative test data
TABLE 2 Cold water side running record and heat absorption comparative test data
Data calculation formula in table: q ═ G1C(T1-T2)＝G2C(t2-t1) In the formula:
G1 coatThe flow rate of the heat medium of the coating heat exchanger is L/h;
c is the specific heat capacity of the circulating liquid;
T1 coat-the inlet temperature, deg.c, of the heat medium of the coating heat exchanger;
T2 coating-the temperature of the outlet of the heat medium of the coating heat exchanger is at DEG C;
ΔTcoating compositionThe temperature difference of the inlet and the outlet of the heat medium of the coating heat exchanger is lower than the temperature of the coating heat exchanger;
Qpaint 1The heat medium heat release of the coating heat exchanger is kilocalorie.
G1 has noThe flow rate of the heat medium of the uncoated heat exchanger is L/h;
T1 has no-inlet temperature of the heat medium of the uncoated heat exchanger, deg.c;
T2 none of-outlet temperature of the heat medium of the uncoated heat exchanger, deg.c;
ΔTis free of-temperature difference, DEG C, of the inlet and outlet of the heat medium of the uncoated heat exchanger;
Qhas no 1The heat medium heat release of the uncoated heat exchanger is kilocalorie.
G2 coating-flow rate of cold medium of the coating heat exchanger, L/h;
t1 coat-the temperature of the cold medium inlet of the coating heat exchanger is at deg.c;
t2 coating-the outlet temperature of the cold medium of the coating heat exchanger is at DEG C;
Δtcoating compositionThe temperature difference of the inlet and the outlet of the cold medium of the coating heat exchanger is lower than the temperature of the inlet and the outlet of the cold medium of the coating heat exchanger;
Qpaint 2-heat release of the cold medium of the coating heat exchanger, kilocalories;
G2 none of-uncoated heat exchangerThe flow rate of a cooling medium is L/h;
t1 has no-inlet temperature of cold medium of the uncoated heat exchanger, deg.c;
t2 none of-outlet temperature of cold medium of the uncoated heat exchanger, deg.c;
Δtis free of-temperature difference, DEG C, of the inlet and outlet of the cold medium of the uncoated heat exchanger;
Qhas no 2The heat release of the cold medium of the uncoated heat exchanger is kilocalorie.
The embodiment of the invention utilizes the connection of the cold medium branch pipe and the hot medium branch pipe with two or more heat exchangers, can realize the experimental comparison of the two or more heat exchangers on the basic data of flow, temperature, differential pressure and the like, improves the accuracy of the test, and can compare the thermal performance and the resistance characteristics of the heat exchangers such as the total heat transfer coefficient and the like by utilizing the calculation. Meanwhile, the embodiment of the invention utilizes the structures of the cold medium branch pipe and the hot medium branch pipe to ensure that the components of media flowing in the heat exchanger are the same, can perform scaling and corrosion comparison of the heat exchanger under long-term operation, and is suitable for performance and efficiency comparison and protection performance comparison of a coated heat exchanger and an uncoated heat exchanger. In addition, the heat exchanger testing device has a simple structure, and can ensure that the temperatures of cold and hot media flowing into the two heat exchangers are the same, so that the two heat exchangers exchange heat under the same condition, and the accuracy of heat exchanger testing is improved.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the modifications and equivalents of the specific embodiments of the present invention can be made by those skilled in the art after reading the present specification, but these modifications and variations do not depart from the scope of the claims of the present application.
Claims (10)
1. A heat exchanger thermal efficiency contrast test testing device is characterized by comprising a cold medium circulating system and a heat medium circulating system, wherein the cold medium circulating system comprises a cold medium circulating pipe, the cold medium circulating pipe comprises a cold medium circulating main pipe and a cold medium circulating branch pipe group, the cold medium circulating branch pipe group consists of at least two cold medium branch pipes, the cold medium circulating main pipe is respectively connected with each cold medium circulating branch pipe, the heat medium circulating system comprises a heat medium circulating pipe, the heat medium circulating pipe comprises a heat medium circulating main pipe and a heat medium circulating branch pipe group, the heat medium circulating branch pipe group consists of at least two heat medium branch pipes, the heat medium circulating main pipe is respectively connected with each heat medium circulating branch pipe, and the cold medium branch pipes and the heat medium branch pipes form a heat exchange structure, the heat exchange structure is also provided with a heat exchanger, and the heat exchanger is respectively connected with the hot medium branch pipe and the cold medium branch pipe.
2. The heat exchanger thermal efficiency contrast test device according to claim 1, wherein the cold medium circulating system further comprises a cold medium circulating pump and a cooler, and the cold medium circulating pump and the cooler are installed on the cold medium circulating main pipe.
3. The heat exchanger thermal efficiency contrast test testing device of claim 1, wherein the heat medium circulating system further comprises a heat medium circulating pump and a heater, and the heat medium circulating pump and the heater are installed on the heat medium circulating main pipe.
4. The heat exchanger thermal performance comparative test device according to claim 2, wherein the cooler is a compression cooler or an absorption refrigeration cooler.
5. The device for testing the thermal performance of a heat exchanger according to claim 3, wherein the heater is an electric heater, an electromagnetic heater, an induction heater or a steam heater.
6. The heat exchanger thermal efficiency contrast test device according to claim 1, wherein a valve is further arranged on the cold medium circulation main pipe and/or the heat medium circulation main pipe, and the valve is selected from one or more of a ball valve, a gate valve, a butterfly valve, a plunger valve and a stop valve.
7. The device for testing the thermal efficiency contrast test of the heat exchanger according to claim 1, wherein a flow meter is further arranged on the cold medium circulation main pipe and/or the hot medium circulation main pipe, and the flow meter is selected from one or more of a water meter and a flow meter.
8. The heat exchanger thermal efficiency contrast test device according to claim 1, wherein a flow regulating valve is further arranged on the cold medium circulation main pipe and/or the heat medium circulation main pipe, and the flow regulating valve is selected from one or more of a throttle valve, a speed regulating valve, a stop valve and a gate valve.
9. The testing method of the thermal performance comparison test device of the heat exchanger according to claim 1, wherein the media in the cold medium circulation main pipe and the hot medium circulation main pipe are water, and the water contains 0.05-1% of a fouling agent selected from one or more of inorganic salts and metal oxides.
10. The test method of claim 9, wherein the scale agent is selected from one or more of calcium carbonate, ferric oxide, magnesium sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366251.0A CN111238842A (en) | 2019-12-26 | 2019-12-26 | Heat exchanger thermal efficiency comparison test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366251.0A CN111238842A (en) | 2019-12-26 | 2019-12-26 | Heat exchanger thermal efficiency comparison test device and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111238842A true CN111238842A (en) | 2020-06-05 |
Family
ID=70863848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911366251.0A Pending CN111238842A (en) | 2019-12-26 | 2019-12-26 | Heat exchanger thermal efficiency comparison test device and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111238842A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034498A (en) * | 2021-11-05 | 2022-02-11 | 中国特种设备检测研究院 | Heat exchanger performance test and energy efficiency evaluation system |
-
2019
- 2019-12-26 CN CN201911366251.0A patent/CN111238842A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034498A (en) * | 2021-11-05 | 2022-02-11 | 中国特种设备检测研究院 | Heat exchanger performance test and energy efficiency evaluation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103558046B (en) | A kind of heat exchanger energy efficiency evaluation system | |
| Liu et al. | Numerical simulation and simplified calculation method for heat exchange performance of dry air cooler in natural gas pipeline compressor station | |
| CN103983464B (en) | Heat exchanger performance test platform | |
| CN104966536A (en) | High-temperature working medium heat exchange test system using heat conducting oil as hot fluid and test method | |
| CN202216925U (en) | Open heat exchanger pilot test platform | |
| CN107632042B (en) | Single-phase heat exchange experiment test platform and test method for shell-and-tube heat exchanger | |
| CN109945681B (en) | Direct contact combined type heat exchange system | |
| CN111238842A (en) | Heat exchanger thermal efficiency comparison test device and test method | |
| CN108446447A (en) | A kind of air cooling heat exchanger efficiency evaluation method | |
| CN109253633A (en) | Pipe arranges unitized exchanger | |
| CN211085711U (en) | Heat exchanger thermal efficiency contrast test testing arrangement | |
| CN206725241U (en) | A kind of large-scale water-hydrothermal exchange equipment test device | |
| CN107300332A (en) | A kind of two-tube pass heat exchanger | |
| CN206930458U (en) | A kind of heat exchanger oil-water test platform | |
| CN204989079U (en) | It conducts heat and visual test system of scale inhibiting performance to be used for oil refining equipment to seal oily water cooler | |
| CN207632896U (en) | The heating system of strip pickling acid | |
| CN112728985A (en) | Tower type efficient waste heat recycling system | |
| CN207540950U (en) | A kind of lower supercritical carbon dioxide corrosion experimental device of stress effect | |
| CN201974081U (en) | Heat-exchanging device with heat-pipe thermal spreader for refrigerative air-conditioning system | |
| CN220205379U (en) | Conduction oil heat exchange high-low temperature lubricating system | |
| CN205537205U (en) | Double -barrelled journey heat exchanger | |
| CN206989760U (en) | A kind of new and effective half-volume type floating coiler heat exhanger | |
| CN113739125A (en) | Ocean drilling platform diesel engine waste heat recovery system with heat accumulation function | |
| CN105136342A (en) | System and method for improving measurement precision of heat exchange amount of heat exchanger under temperature differential condition | |
| CN204944707U (en) | The system that heat interchanger heat exchange measures accuracy of measurement is improved under micro-temperature difference condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |