CN211042729U - Open type surface cooler performance test device under dry-wet refrigeration and heating conditions - Google Patents
Open type surface cooler performance test device under dry-wet refrigeration and heating conditions Download PDFInfo
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- CN211042729U CN211042729U CN201920196616.9U CN201920196616U CN211042729U CN 211042729 U CN211042729 U CN 211042729U CN 201920196616 U CN201920196616 U CN 201920196616U CN 211042729 U CN211042729 U CN 211042729U
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- 238000011056 performance test Methods 0.000 title claims abstract description 56
- 238000010438 heat treatment Methods 0.000 title claims abstract description 18
- 238000005057 refrigeration Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 175
- 230000001105 regulatory effect Effects 0.000 claims abstract description 34
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 238000004321 preservation Methods 0.000 claims abstract description 18
- 230000008520 organization Effects 0.000 claims abstract description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims 1
- 239000008236 heating water Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000012546 transfer Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
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Abstract
The utility model discloses an open dry and wet refrigeration and heating working condition surface cooler performance test device, including the air current organization treatment section, air temperature and humidity preliminary treatment section, surface cooler performance test section, water treatment system, measurement and control system. The water is connected with a heat-preservation water tank through a filter, the heat-preservation water tank is connected with a variable-frequency water pump and then respectively pumped to a water chilling unit or an electric water heater, the water is divided into three paths and respectively connected with a pretreatment surface cooler through an electric three-way regulating valve, is connected with an electromagnetic flowmeter and a surface cooler for performance test through the electric three-way regulating valve, is connected with a bypass regulating valve, and is connected with the heat-preservation water tank after being converged. The control system collects sensor signals such as temperature, humidity, pressure and flow in real time, can automatically adjust the temperature and flow of the air side and the water side according to different design working condition requirements such as dry-wet refrigeration working condition and heating working condition, carries out pretreatment on the air temperature and humidity through closed-loop feedback adjustment, and has the advantages of high test precision, wide application range, energy conservation and environmental protection.
Description
Technical Field
The utility model relates to a surface cooler technical field especially relates to open dry and wet refrigeration and heating working condition surface cooler performance test device.
Background
Surface coolers, which are the main components of air temperature and humidity control equipment, have been widely used in air conditioning engineering due to their advantages of simple construction, low cost, small floor space, and low resistance to water systems. The working principle is that a refrigerant or a refrigerating working medium flows through the inner cavity of the metal fin tube, and the air to be processed flows through the outer wall of the metal fin tube to carry out heat exchange so as to achieve the purpose of cooling the air. The surface cooler can treat different working conditions of dry, wet and the like, wherein for the wet working condition, when the surface temperature is lower than the dew point temperature of the treated air, the air is firstly cooled to a saturation line by equal humidity, then is further cooled and dehumidified along the saturation line to be close to the surface temperature of the surface cooler, and partial water in the air is condensed out. The performance of the surface cooler is influenced by various aspects such as operating conditions, fin tube structure parameters, tube row arrangement forms and the like, and the flowing heat transfer performance directly influences the reliability, economy and compactness of the air conditioning equipment. Therefore, in order to enrich the performance database for designing the heat exchanger and check the overall performance of the surface cooler, the measurement of the heat transfer and flow performance of various types of surface coolers under various standard working conditions is an effective scheme.
Disclosure of Invention
To the problem that exists, the utility model discloses aim at providing open dry and wet refrigeration and heating working condition surface cooler performance test device down, the utility model discloses can provide temperature and humidity control for the air pretreatment in the wind channel, can provide rated entry condition for surface cooler performance test again, it is high to have a measuring accuracy, and the range of application is wide, advantages such as energy-concerving and environment-protective.
In order to achieve the above object, the utility model adopts the following technical scheme:
the surface cooler performance test device under the open type dry-wet refrigeration and heating conditions comprises an airflow organization treatment section, an air temperature and humidity pretreatment section, a surface cooler performance test section, a water treatment system and a control system; wherein the content of the first and second substances,
the airflow organization processing section comprises an air duct, a flow stabilizing net and a honeycomb rectifier, and the flow stabilizing net and the honeycomb rectifier are sequentially arranged in the air duct along the wind direction;
the air temperature and humidity pretreatment section sequentially comprises a pretreatment surface cooler, a PTC electric heater and a steam humidifier; the pretreated surface cooler, the PTC electric heater and the steam humidifier are sequentially arranged in the air channel along the wind direction;
the surface cooler performance test section comprises a surface cooler for performance test, and the outlet end of the steam humidifier is connected with the surface cooler for performance test;
the water treatment system comprises a heat-insulating water tank, a water chilling unit and an electric water heater, wherein water in the heat-insulating water tank is respectively communicated with the water chilling unit and the electric heater through pipelines, and the water chilling unit and the electric water heater are respectively communicated with a pretreatment surface cooler and a surface cooler for performance test through pipelines;
the control system collects signals of the sensor in real time and completes air side flow regulation, water side flow regulation for performance testing, water side temperature regulation for performance testing and air temperature and humidity pretreatment according to set working condition requirements.
Preferably, a temperature and humidity sensor and a pressure sensor are arranged in the front air duct and the rear air duct of the pretreatment surface cooler, the PTC electric heater, the steam humidifier and the surface cooler for performance test, and the signal output of the sensors is connected with a control system.
Preferably, the heat preservation water tank is further provided with a water inlet pipeline, a water outlet pipeline and a return pipeline, wherein the water outlet pipeline is divided into two branch pipelines which are respectively a water inlet pipeline of the water chilling unit and a water inlet pipeline of the electric heater.
Preferably, the water chilling unit is further provided with a water chilling unit water outlet pipeline and an electric heater water outlet pipeline, and the water chilling unit water outlet pipeline and the electric heater water outlet pipeline are converged to form a branch pipeline which is a pretreatment surface air cooler water inlet pipeline.
Preferably, a water outlet pipeline of the pretreatment surface cooler is further arranged on the pretreatment surface cooler, the water outlet pipeline of the pretreatment surface cooler is communicated with the heat preservation water tank, and the water outlet pipeline of the pretreatment surface cooler is communicated with the first electric three-way regulating valve through a bypass pipeline.
Preferably, the pretreatment surface cooler water inlet pipeline is communicated with the surface cooler for performance test through the surface cooler water inlet pipeline for performance test, the surface cooler for performance test side is further provided with a surface cooler water outlet pipeline for performance test, and the surface cooler water outlet pipeline for performance test is communicated with the heat preservation water tank.
Preferably, a second electric three-way regulating valve and an electromagnetic flowmeter are further arranged on the water inlet pipeline of the performance test surface cooler.
Preferably, the two ends of the surface cooler for the performance test are connected with the front air duct and the rear air duct in a flanging flange mode.
Preferably, the rear end of the surface cooler for performance testing is further sequentially provided with a pore plate flowmeter, a variable frequency fan and a baffle valve which are arranged in the air duct.
The utility model has the advantages that:
the testing device comprises a closed-loop automatic control air temperature and humidity preprocessing section, can simulate different design working conditions such as dry-wet refrigeration working conditions, heating working conditions and the like, can test the development performance of the surface cooler under various rated working conditions, and has wide application range; the temperature, the humidity, the pressure and the flow on the surface cooler are dynamically measured in real time in the test process, the heat transfer coefficients and the friction coefficients under different working conditions can be recorded and calculated after all parameters are stable, and the test precision is high; the two ends of the surface cooler in the air channel are connected with the front air channel and the rear air channel in a flanging flange mode, so that the surface cooler is easy to replace, and is convenient for performance test of the surface coolers with different tube row arrangements and fin structures.
Drawings
Fig. 1 is a schematic flow chart of the present invention.
Wherein: 1-a filter screen, 2-a current stabilizing net, 3-a honeycomb rectifier, 4-a pretreatment surface cooler, 5-a PTC electric heater, 6-a steam humidifier, 7-a performance testing surface cooler, 8-a pore plate flowmeter, 9-a variable frequency fan, 10-a baffle valve, 11-a heat preservation water tank, 12-a filter, 13-a variable frequency water pump, 14-a water chilling unit, 15-an electric water heater, 16-a first electric three-way regulating valve, 17-a second electric three-way regulating valve, 18-an electromagnetic flowmeter, 19-a bypass regulating valve, 20-a pretreatment surface cooler water inlet pipeline, 21-a pretreatment surface cooler water outlet pipeline, 22-a performance testing surface cooler water inlet pipeline, 23-a performance testing surface cooler water outlet pipeline, 24-a bypass pipeline and 25-an air duct.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.
Example (b): referring to fig. 1, the surface cooler performance test device under open type dry-wet refrigeration and heating conditions comprises an airflow organization treatment section, an air temperature and humidity pretreatment section, a surface cooler performance test section, a water treatment system and a control system; wherein the content of the first and second substances,
specifically, the airflow organization processing section comprises an air duct 25, a flow stabilizing net 2 and a honeycomb rectifier 3, wherein the flow stabilizing net 2 and the honeycomb rectifier 3 are sequentially arranged in the air duct 2 along the wind direction; the rear end of the surface cooler 7 for the performance test is also sequentially provided with a pore plate flowmeter 8, a variable frequency fan 9 and a baffle valve 10 which are arranged in the air duct;
specifically, the air temperature and humidity pretreatment section sequentially comprises a pretreatment surface cooler 4, a PTC electric heater 5 and a steam humidifier 6; the pretreatment surface cooler 4, the PTC electric heater 5 and the steam humidifier 6 are sequentially arranged in the air channel along the wind direction; temperature and humidity sensors and pressure sensors are arranged in front and back air channels of the pretreatment surface cooler 4, the PTC electric heater 5, the steam humidifier 6 and the surface cooler for performance test 7, and signal output of the sensors is connected with a control system; the pretreatment surface cooler 4 is also provided with a pretreatment surface cooler water outlet pipeline 21, the pretreatment surface cooler water outlet pipeline 21 is communicated with the heat preservation water tank 11, and the pretreatment surface cooler water outlet pipeline 21 is communicated with the first electric three-way regulating valve 16 through a bypass pipeline 24.
Specifically, the surface cooler performance test section comprises a surface cooler 7 for performance test, and the outlet end of the steam humidifier 6 is connected with the surface cooler 7 for performance test; pretreatment surface cooler water intake pipe 20 communicates with surface cooler 7 for the capability test through capability test surface cooler water intake pipe 22, surface cooler 7 for the capability test side still sets up capability test surface cooler outlet pipe way 23, capability test surface cooler outlet pipe way 23 and holding water box 11 intercommunication still set up electronic three way control valve 17 of second and electromagnetic flowmeter 18 on the capability test surface cooler water intake pipe 22, the form that flange was adopted at the both ends of surface cooler 7 for the capability test is connected with front and back wind channel, easily changes and overhauls.
Specifically, the water treatment system comprises a heat-insulating water tank 11, a water chilling unit 14 and an electric water heater 15, wherein water in the heat-insulating water tank 11 is respectively communicated with the water chilling unit 14 and the electric heater through pipelines, and the water chilling unit 14 and the electric water heater 15 are respectively communicated with the pretreatment surface cooler 4 and the surface cooler 7 for performance test through pipelines;
the heat preservation water tank 11 is also provided with a water inlet pipeline, a water outlet pipeline and a return pipeline,
the water outlet pipeline is divided into two branch pipelines which are respectively a water inlet pipeline of the water chilling unit 14 and a water inlet pipeline of the electric heater;
the water chilling unit 14 is also provided with a water outlet pipeline of the water chilling unit 14 and a water outlet pipeline of the electric heater, and the water outlet pipeline of the water chilling unit 14 and the water outlet pipeline of the electric heater are converged to form a branch pipeline which is a water inlet pipeline 20 of the pretreatment surface air cooler. Control valves are arranged on a water outlet pipeline of a water chilling unit 14 of the water chilling unit 14, a water inlet pipeline of the water chilling unit 14, a water outlet pipeline of an electric heater and a water inlet pipeline of the electric heater, and a first electric three-way regulating valve 16 is also arranged on a water inlet pipeline 20 of the pretreatment surface air cooler;
the overall design mode is as follows: a filter screen 1 in the air duct is connected with an air flow organization processing section, and the air flow organization processing section comprises a flow stabilizing net 2 and a honeycomb rectifier 3; the outlet end of the honeycomb rectifier 3 is connected with an air temperature and humidity pretreatment section, and the air temperature and humidity pretreatment section sequentially comprises a pretreatment surface cooler 4, a PTC electric heater 5 and a steam humidifier 6; the outlet end of the steam humidifier 6 is connected with a surface cooler 7 for performance test; the outlet end of the surface cooler 7 for performance test is connected with the orifice flowmeter 8; the outlet end of the orifice plate flowmeter 8 is connected with a variable frequency fan 9, and air in the air duct flows out through a baffle valve 10; the water flows into a heat preservation water tank 11 through a filter 12, is respectively pumped to a water chilling unit 14 or an electric water heater 15 through a variable frequency water pump 13, is divided into three paths, is respectively connected with a pretreatment surface cooler 4 through an electric three-way regulating valve, is connected with an electromagnetic flowmeter 18 and a surface cooler 7 for performance test through the electric three-way regulating valve, is connected with a bypass regulating valve 19, and is connected with the heat preservation water tank 11 after being converged; differential pressure sensors are arranged in the front air duct and the rear air duct of the orifice plate flowmeter 8, and the signal output of the sensors is connected with a measurement control system; the output signal of the electromagnetic flowmeter 18 is connected with a measurement control system; an air outlet of the variable frequency fan 9 is connected with the flapper valve 10 through a flange, an air duct outlet is discharged into the environment after passing through a silencer, and a signal output of the variable frequency fan and an opening signal of the flapper valve 10 are connected with a control system;
the control system collects signals of each sensor in real time, and finishes air side flow regulation, water side flow regulation for performance testing, water side temperature regulation for performance testing and air temperature and humidity pretreatment according to set working condition requirements;
the control system collects signals of each sensor in real time, according to the set working condition requirement, flow regulation of the air side is completed by regulating the opening degrees of the frequency converter and the baffle valve 10, flow regulation of the water side for performance testing is completed by regulating the variable frequency water pump 13, the electric three-way regulating valve and the bypass regulating valve 19, temperature regulation of the water side for performance testing is completed by regulating the water chilling unit 14 or the electric water heater 15, and air temperature and humidity pretreatment is completed by regulating the electric three-way regulating valve, the PTC electric heater 5 and the steam humidifier 6.
The utility model discloses the water route pipeline that involves in all wraps up adiabatic cotton, prevents cold volume or calorific loss.
The utility model discloses a theory of operation does:
air enters a filter screen 1 at an air inlet section of an air channel and is filtered, the air sequentially passes through a current stabilizing net 2 and a honeycomb rectifier 3 to organize, stabilize and rectify the airflow, then is pretreated by a pretreated surface cooler 4, a PTC electric heater 5 and a steam humidifier 6 to pretreat the temperature and humidity of the air, then is subjected to a performance test by a surface cooler 7, the air side flow is measured by a pore plate flowmeter 8, a variable frequency fan 9 is installed at the tail end of the air channel, air supply of the air channel is completed in an air suction mode, and the air side flow is combined and adjusted by a frequency converter of the variable frequency fan 9 and a baffle valve 10 installed at the outlet of the air channel. According to the power of the selected fan, the test device can realize the performance test of the surface cooler in a wider Reynolds number range. The cold and heat quantity of the water side is provided by the water chilling unit 14 and the electric water heater 15 in parallel, and the water side is divided into three paths: one path is connected with a pretreatment surface cooler 4 through an electric three-way regulating valve to carry out temperature pretreatment on air from the environment; one path is connected with an electromagnetic flowmeter 18 and a surface cooler 7 for performance test through an electric three-way regulating valve, and water side cold and heat are provided for the performance test of the surface cooler; one path is connected through a bypass regulating valve 19 to realize the bypass function; the three-way regulating valve divides the water outlet into two paths respectively, the structure is compact, the weight is light, the action is sensitive, the functions of reducing noise and resonance are achieved, one path realizes large-flow bypass regulation through the bypass regulating valve, the pipeline is divided into three paths for regulation, and the flow regulation is sensitive. Three routes fluid joins the back and is connected with holding water tank 11 and realizes keeping warm, and the water route pipeline all wraps up adiabatic cotton, can prevent cold volume or calorific loss. Make-up water flows into the heat preservation water tank 11 through the water filter 12, and the variable frequency water pump 13 pumps water out of the heat preservation water tank 11, thereby realizing waterway circulation.
The method is characterized in that a computer acquisition and control system is used for dynamically measuring various parameters in real time, according to the set working condition requirement, the flow regulation of the air side is completed by regulating the opening degree of a frequency converter and a baffle valve 10, the flow regulation of the water side for performance testing is completed by regulating a variable frequency water pump 13, an electric three-way regulating valve and a bypass regulating valve 19, the temperature regulation of the water side for performance testing is completed by regulating a water chilling unit or an electric water heater 15, and the air temperature and humidity pretreatment is completed by regulating the electric three-way regulating valve, a PTC electric heater 5 and a steam humidifier 6 through.
The experimental steps are as follows: the test bed is started, the experimental working conditions of the heat exchanger are controlled through the control cabinet, the temperature, the humidity and the pressure are controlled, and after the state parameters are stable, the volume flow, the inlet temperature and the outlet temperature, the outlet temperature and the pressure of air are obtained through the orifice plate flowmeter 8, the inlet and outlet temperature sensor and the pressure sensor on the air side. The volume flow, inlet and outlet temperature and pressure of water are obtained by an electromagnetic flowmeter 18, an inlet and outlet temperature sensor and a pressure sensor on the water side. Further, the method for calculating the heat transfer coefficient of the heat exchanger under a certain working condition comprises the following steps:
(1) the heat transfer equation for a heat exchanger is:
QH＝KFΔtm
wherein QHK is the heat transfer coefficient of the heat exchanger, F is the area of the heat exchanger, Δ tmIs the logarithmic mean temperature difference across the heat exchanger.
(2) Heat exchange amount of air side
Qa＝Gacp,a(ta1-ta2)
Wherein QaIs the amount of heat exchange on the air side, GaMass flow rate of air side, cp,aIs the constant pressure specific heat of air, ta1Is the inlet temperature of air, ta2Is the outlet temperature of the air.
(3) Heat exchange capacity of water side
Qw＝Gwcp,w(tw2-tw1)
Wherein QaHeat exchange amount of water side, Gw mass flow of water side, cp,wIs the constant pressure specific heat of water, tw1Is the inlet temperature of the water side, tw2The outlet temperature of the water side.
(4) Logarithmic mean temperature difference of heat exchanger
Where Δ tmin＝ta2-tw2，Δtmin＝ta1-tw1
(5) Heat transfer coefficient of heat exchanger
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. Open dry and wet refrigeration and heating condition surface cooler performance test device, its characterized in that: the system comprises an airflow organization treatment section, an air temperature and humidity pretreatment section, a surface cooler performance test section, a water treatment system and a control system; the airflow organization processing section comprises an air duct, a flow stabilizing net and a honeycomb rectifier, wherein the flow stabilizing net and the honeycomb rectifier are sequentially arranged in the air duct along the wind direction; the air temperature and humidity pretreatment section sequentially comprises a pretreatment surface cooler, a PTC electric heater and a steam humidifier; the pretreated surface cooler, the PTC electric heater and the steam humidifier are sequentially arranged in the air channel along the wind direction; the surface cooler performance test section comprises a surface cooler for performance test, and the outlet end of the steam humidifier is connected with the surface cooler for performance test; the water treatment system comprises a heat-preservation water tank, a water chilling unit and an electric water heater, wherein water in the heat-preservation water tank is respectively communicated with the water chilling unit and the electric heater through pipelines, and the water chilling unit and the electric water heater are respectively communicated with a pretreatment surface cooler and a surface cooler for performance test through pipelines; the control system collects signals of the sensor in real time and completes air side flow regulation, water side flow regulation for performance testing, water side temperature regulation for performance testing and air temperature and humidity pretreatment according to set working condition requirements.
2. The open face cooler performance test apparatus under dry and wet refrigeration and heating conditions of claim 1, wherein: and temperature and humidity sensors and pressure sensors are arranged in front and back air channels of the pretreatment surface cooler, the PTC electric heater, the steam humidifier and the surface cooler for performance test, and the signal output of the sensors is connected with a control system.
3. The open face cooler performance test apparatus under dry and wet refrigeration and heating conditions of claim 1, wherein: the heat preservation water tank is also provided with a water inlet pipeline, a water outlet pipeline and a return pipeline, wherein the water outlet pipeline is divided into two branch pipelines which are respectively a water inlet pipeline of the water chilling unit and an electric heating water inlet pipeline.
4. The open face cooler performance test apparatus under dry and wet refrigeration and heating conditions of claim 3, wherein: the water chilling unit is also provided with a water chilling unit water outlet pipeline and an electric heater water outlet pipeline, and the water chilling unit water outlet pipeline and the electric heater water outlet pipeline are converged to form a branch pipeline which is a water inlet pipeline of the pretreatment surface air cooler.
5. The open face cooler performance test apparatus under dry and wet refrigeration and heating conditions of claim 4, wherein: the pretreatment surface cooler is also provided with a pretreatment surface cooler water outlet pipeline, the pretreatment surface cooler water outlet pipeline is communicated with the heat preservation water tank, and the pretreatment surface cooler water outlet pipeline is communicated with the first electric three-way regulating valve through a bypass pipeline.
6. The open face cooler performance test apparatus under dry and wet refrigeration and heating conditions of claim 5, wherein: the pretreatment surface cooler water inlet pipeline is communicated with the surface cooler for performance testing through the surface cooler water inlet pipeline for performance testing, the surface cooler for performance testing side face is further provided with a surface cooler water outlet pipeline for performance testing, and the surface cooler water outlet pipeline for performance testing is communicated with the heat preservation water tank.
7. The open face cooler performance test apparatus under dry and wet refrigeration and heating conditions of claim 6, wherein: and a second electric three-way regulating valve and an electromagnetic flowmeter are also arranged on the water inlet pipeline of the performance test surface cooler.
8. The open face cooler performance test apparatus under dry and wet refrigeration and heating conditions of claim 7, wherein: and two ends of the surface cooler for the performance test are connected with the front air channel and the rear air channel in a flanging flange mode.
9. The open wet and dry refrigeration and heating condition surface cooler performance test apparatus according to any one of claims 1-8, wherein: and the rear end of the surface cooler for performance test is also sequentially provided with a pore plate flowmeter, a variable frequency fan and a baffle valve which are arranged in the air duct.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920196616.9U CN211042729U (en) | 2019-02-14 | 2019-02-14 | Open type surface cooler performance test device under dry-wet refrigeration and heating conditions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920196616.9U CN211042729U (en) | 2019-02-14 | 2019-02-14 | Open type surface cooler performance test device under dry-wet refrigeration and heating conditions |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827792A (en) * | 2019-02-14 | 2019-05-31 | 江苏科技大学 | The dry and wet refrigeration and heating condition lower surface cooler performance experimental rig of open type |
| CN114739717A (en) * | 2022-06-13 | 2022-07-12 | 中国飞机强度研究所 | Waterway system for testing ground thermal strength of aerospace plane and design method thereof |
-
2019
- 2019-02-14 CN CN201920196616.9U patent/CN211042729U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827792A (en) * | 2019-02-14 | 2019-05-31 | 江苏科技大学 | The dry and wet refrigeration and heating condition lower surface cooler performance experimental rig of open type |
| CN114739717A (en) * | 2022-06-13 | 2022-07-12 | 中国飞机强度研究所 | Waterway system for testing ground thermal strength of aerospace plane and design method thereof |
| CN114739717B (en) * | 2022-06-13 | 2022-08-26 | 中国飞机强度研究所 | Waterway system for testing ground thermal strength of aerospace plane and design method thereof |
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