Humidifying spray type air cooler performance testing device

Abstract

The utility model provides a humidifying spray type air cooler performance testing device which comprises a medium storage tank, a liquid temperature sensor is arranged in the medium storage tank, the medium storage tank is communicated with a cooling pipeline in an air cooler to be tested through a liquid removing pipeline and a liquid returning pipeline, and a conveying pump and a liquid inlet temperature sensor are arranged on the liquid removing pipeline. A liquid outlet temperature sensor is arranged on the liquid return pipeline, a plurality of air temperature sensors, air pressure sensors, air humidity sensors and anemometers are arranged at the positions, close to the air incoming side and the air outgoing side, in the air cooler to be tested respectively, a first thermocouple is arranged on the inlet side of each tube pass of the cooling pipeline, and a second thermocouple is arranged on the outer tube face of each tube pass of the cooling pipeline. A third thermocouple is arranged on the outlet side of each tube pass of the cooling pipeline, and a spraying mechanism located below the cooling pipeline is arranged in the air cooler to be tested. The device is high in detection efficiency, can provide effective and objective performance quantitative evaluation, accelerates the research and development innovation of the to-be-detected spray humidification type air cooler, and promotes the energy efficiency upgrading of the to-be-detected spray humidification type air cooler.

Description

TECHNICAL FIELD

[0001] The utility model relates to air cooler performance test technical field field especially, it is a kind of humidification spray type air cooler performance testing device. BACKGROUND

[0002] Air cooler is a kind of wall heat exchanger, hot medium is cooled or condensed in the process of flowing inside heat exchange pipe, air is heated when flowing through heat exchange pipe outside and absorbs the heat of hot medium in pipe, and finally is discharged into atmosphere.

[0003] According to the cooling mode outside pipe, air cooler is mainly divided into dry air cooler, wet air cooler, dry-wet combined air cooler. Among them, wet air cooler is mainly divided into two types: spray humidification type and spray type. Spray humidification type air cooler has the advantages of air cooling and water cooling, is the improvement of dry air cooler, is more water-saving than spray type air cooler, water consumption is only 1 / 10 of spray type air cooler, can reduce air dry ball temperature to air wet ball temperature, increases heat transfer temperature difference, improves heat exchange capacity, has the characteristics of compact, energy saving, high heat exchange efficiency, is suitable for dry and hot region.

[0004] At present, commonly used air cooler performance testing device is only suitable for testing conventional dry air cooler, see patent CN212808132U a heat exchange performance detection device for air cooler, CN106769159A a kind of air cooler performance detection system.

[0005] There is no device that can test the actual heat transfer performance of humidification spray type air cooler in production and application, the heat transfer effect of this type of product cannot be quantitatively evaluated, which hinders the speed of spray humidification type air cooler research and development-innovation-test demonstration-technology innovation-energy efficiency upgrading. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of humidification spray type air cooler performance testing device to solve the above technical problems.

[0007] The utility model provides a kind of humidification spray type air cooler performance testing device, including the medium storage tank with at least one liquid temperature sensor inside, the medium storage tank is connected with the cooling pipeline inside the air cooler to be measured by liquid removal pipeline and liquid return pipeline, conveying pump and liquid inlet temperature sensor are equipped on the liquid removal pipeline, liquid outlet temperature sensor is equipped on the liquid return pipeline, air inlet temperature sensor one, air inlet differential pressure gauge one and air humidity sensor one are arranged in the position of the air cooler to be measured inside close to air side, air humidity sensor two is arranged on the cooling pipeline, air outlet temperature sensor two, air outlet differential pressure gauge two, air humidity sensor three and anemograph are arranged in the position of the air cooler to be measured inside close to air side, each tube process entrance side of the cooling pipeline is equipped with thermocouple one, each tube process outer tube surface of the cooling pipeline is equipped with thermocouple two, each tube process exit side of the cooling pipeline is equipped with thermocouple three.

[0008] Further, the medium storage tank is provided with a liquid supplementing pipe and a liquid discharge pipe.

[0009] Further, the medium storage tank is provided with a liquid supplementing pipe and a liquid discharge pipe.

[0010] Further, the liquid removal pipeline and the liquid return pipeline are communicated with the cooling pipeline through first adapter, second adapter respectively.

[0011] Further, the air cooler to be measured is provided with an air outlet above the cooling pipeline, and a fan is installed near the cooling pipeline at the air outlet.

[0012] Further, the air cooler to be measured is provided with a spraying mechanism below the cooling pipeline.

[0013] Further, the spraying mechanism includes a spraying pipeline below the cooling pipeline, the spraying pipeline is connected with a water tank, and a plurality of atomizing nozzles are installed on the spraying pipeline towards the cooling pipeline.

[0014] Further, the spraying pipeline is communicated with the water tank through a water delivery pipe, and a pipeline filter, a variable-frequency high-pressure water pump, a pressure gauge, a flowmeter and a safety valve are installed on the water delivery pipe in sequence along the water inlet direction.

[0015] Further, the water tank is provided with a water supplementing pipe, and a liquid level meter is arranged inside the water tank.

[0016] The utility model has high detection efficiency, can provide heat transfer performance test for spray humidification type air coolers of different specifications and models under different working conditions, can provide effective and objective performance quantization comments, optimize and improve the spray humidification type air cooler to be measured according to test data, accelerate the research and development of the spray humidification type air cooler to be measured, and promote the energy efficiency upgrading of the spray humidification type air cooler to be measured. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of Embodiment 1 of the present invention;

[0019] Figure 2 This is a schematic diagram of Embodiment 2 of the present invention;

[0020] Explanation of reference numerals in the attached figures:

[0021] In the diagram: 1-Air cooler under test, 21-Air inlet temperature sensor 1, 22-Air inlet differential pressure gauge 1, 23-Air humidity sensor 1, 24-Air humidity sensor 2, 25-Air humidity sensor 3, 26-Thermocouple 1, 27-Thermocouple 2, 28-Thermocouple 3, 29-Air outlet differential pressure gauge 2, 210-Anemometer, 211-Air outlet temperature sensor 2, 212-Fan, 213-Air outlet, 31-Medium storage tank, 32-Replenishment pipe, 33-Drain pipe, 34-Stirring mechanism, 35-Liquid temperature sensor 1, 36-Liquid temperature sensor 2, 37-Liquid temperature sensor 3, 38-Liquid temperature sensor 4 39-Transfer pump, 310-Inlet flow regulating valve, 311-Inlet pressure detection device, 312-Liquid temperature sensor, 313-First adapter, 314-Second adapter, 315-Outlet flow regulating valve, 316-Liquid temperature sensor, 317-Outlet pressure detection device, 4-High-pressure spray system, 41-Water tank, 42-Water supply pipe, 43-Pipeline filter, 44-Variable frequency high-pressure water pump, 45-Pressure gauge, 46-Flow meter, 47-Safety valve, 48-Spray pipeline, 49-Atomizing nozzle, 410-Level gauge, 411-Water supply pipe, 51-Outlet pipeline, 52-Return pipeline, 6-Baffle plate, 61-Rotating shaft; Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model indicated or implied by the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0024] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified. In addition, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Example 1

[0026] As Figure 1 shown:

[0027] A humidifying spray type air cooler performance testing device, comprising a medium storage tank 31, the medium storage tank 31 is communicated with the cooling pipeline inside the air cooler 1 to be tested through the liquid removal pipeline 51 and the liquid return pipeline 52.

[0028] The medium storage tank 31 is provided with a liquid supplementing pipe 32 and a liquid discharge pipe 33. The inside of the medium storage tank 31 is provided with a stirring mechanism 34 and a heating mechanism.

[0029] The stirring mechanism 34 realizes the stirring function, and in the embodiment, the stirring mechanism 34 comprises a stirring shaft, the stirring shaft extends to the inside of the medium storage tank 31 and is provided with stirring blades, the end portion of the stirring shaft outside the medium storage tank 31 is connected with a stirring driving part for driving, and the stirring driving part comprises a motor, a speed reducer and a shaft coupling. In the embodiment, an anchor type stirrer is used, in addition to which a propeller type stirrer, a turbine type stirrer or a spiral belt type stirrer can also be used.

[0030] The heating mechanism is used to provide heat to make the medium reach the required temperature. In this embodiment, an electric resistance wire heating mechanism is adopted, which includes an electric resistance wire, the electric resistance wire is arranged on the inner wall of the medium storage tank 31, and the electric resistance wire is connected with a terminal for connecting a power supply to introduce current into the electric resistance wire. The electric resistance wire heating mechanism further includes a temperature sensor and a temperature controller. The temperature sensor is used to monitor the temperature of the heating mechanism in real time and transmit the temperature signal to the temperature controller. In addition, steam heating, hot oil heating and other heating methods can also be adopted, and the heating element can be selected and arranged according to the size and heating requirements of the device.

[0031] In order to improve the detection accuracy of the medium temperature in the medium storage tank 31, four liquid temperature sensors are arranged in this embodiment, which are liquid temperature sensor one 35, liquid temperature sensor two 36, liquid temperature sensor three 37 and liquid temperature sensor four 38. The four liquid temperature sensors are arranged at the four corner positions of the intermediate longitudinal section of the medium storage tank 31.

[0032] The anchor type stirrer and the electric resistance wire heating mechanism adopted in this embodiment belong to commonly used components, and the above content can realize the basic functions, and the specific details will not be described in detail.

[0033] The liquid outlet of the medium storage tank 31 is communicated with the cooling pipeline inside the air cooler 1 to be tested through the liquid removal pipeline 51, and the end of the liquid removal pipeline 51 is provided with a first adapter 313 connected with the cooling pipeline; the liquid return port of the medium storage tank 31 is communicated with the cooling pipeline inside the air cooler 1 to be tested through the liquid return pipeline 52, and the end of the liquid return pipeline 52 is provided with a second adapter 314 connected with the cooling pipeline.

[0034] The first adapter 313 and the second adapter 314 in this embodiment are quick connection adapters, and threaded connection adapters, flange connection adapters or other adapters can also be selected according to the actual situation.

[0035] The liquid removal pipeline 51 is provided with a delivery pump 39, an inlet flow regulating valve 310, an inlet pressure detection device 311 and a liquid temperature sensor five 312 in sequence along the medium conveying direction. The inlet flow regulating valve 310, the inlet pressure detection device 311 and the liquid temperature sensor five 312 respectively detect the flow, pressure and temperature of the medium flowing out from the medium storage tank 31, flowing into the cooling pipeline of the air cooler 1 to be tested through the liquid removal pipeline 51.

[0036] The liquid return pipeline 52 is provided with an outlet flow regulating valve 315, a liquid temperature sensor six 316 and an outlet pressure detection device 317 in sequence along the medium conveying direction. The outlet flow regulating valve 315, the liquid temperature sensor six 316 and the outlet pressure detection device 317 respectively detect the flow, temperature and pressure of the medium flowing out from the cooling pipeline of the air cooler 1 to be tested, flowing into the medium storage tank 31 through the liquid return pipeline 52.

[0037] Cooling pipeline is arranged in the middle of the air cooler 1 to be tested, and an air outlet 213 is arranged above the cooling pipeline in the air cooler 1 to be tested. A fan 212 is arranged near the cooling pipeline. The fan 212 rotates to force air to flow through the cooling pipeline of the air cooler 1 to be tested at a certain speed. In this way, the air can fully contact the hot medium in the tube bundle, improve the heat exchange efficiency, strengthen the heat dissipation process, and effectively reduce the temperature of the hot medium.

[0038] A spraying mechanism is arranged below the cooling pipeline in the air cooler 1 to be tested. The spraying mechanism includes a spraying pipeline 48 arranged below the cooling pipeline. The spraying pipeline 48 is provided with a gap for air flow on the side thereof. The spraying pipeline 48 is connected with a water tank 41, and a plurality of atomizing nozzles 49 are arranged on the spraying pipeline 48 and face the cooling pipeline.

[0039] The spraying pipeline 48 is communicated with the water tank 41 through a water delivery pipe 42. The water delivery pipe 42 is sequentially provided with a pipeline filter 43, a variable frequency high-pressure water pump 44, a pressure gauge 45, a flow meter 46 and a safety valve 47 along the water flow direction. The water tank 41 is provided with a water supplement pipe 411, and a liquid level meter 410 is arranged in the water tank 41.

[0040] An air inlet temperature sensor 21, an air inlet differential pressure gauge 22 and an air humidity sensor 23 are arranged in the air cooler 1 to be tested and near the spraying mechanism (air inlet side). An air humidity sensor 24 is arranged on the cooling pipeline body. An air outlet temperature sensor 211, an air outlet differential pressure gauge 29, an air humidity sensor 25 and an air speed instrument 210 are arranged in the air cooler 1 to be tested and near the air outlet 213 (air outlet side).

[0041] A thermocouple 26 is arranged at the inlet side of each tube pass of the cooling pipeline. A thermocouple 27 is arranged on the outer tube surface of each tube pass of the cooling pipeline. A thermocouple 28 is arranged at the outlet side of each tube pass of the cooling pipeline.

[0042] During the test, the spraying humidification-air-tube medium heat exchange performance test is carried out by using the heat exchange capacity of the air cooler 1 to be tested.

[0043] Working process: when the air cooler 1 to be tested is started, the medium to be tested is selected, and the medium is added into the medium storage tank 31 through the liquid supplement pipe 32 on the medium storage tank 31. The medium in the medium storage tank 31 is heated to the test setting temperature by the stirring mechanism 34 and the heating mechanism. The stirring mechanism 34 can mix the medium in the medium storage tank 31 uniformly, so that the medium temperature is balanced, and the four liquid temperature sensors in the medium storage tank 31 monitor the medium temperature in real time.

[0044] The delivery pump 39 is started, and the heated high-temperature medium enters the cooling pipeline in the air cooler 1 through the liquid delivery pipeline 51. The liquid delivery flow regulating valve 310, the liquid delivery pressure detection device 311 and the liquid temperature sensor 312 detect the flow, pressure and temperature of the medium in the liquid delivery pipeline 51.

[0045] The high-temperature medium is cooled in the cooling pipeline and becomes low-temperature medium, which returns to the medium storage tank 31 through the liquid return pipeline 52. The liquid delivery flow regulating valve 315, the liquid temperature sensor 316 and the liquid delivery pressure detection device 317 detect the flow, temperature and pressure of the medium in the liquid return pipeline 52.

[0046] Test process: After the pipeline is filled, the fan 212 in the air cooler 1 is started, and the fan 212 sucks air from below the air cooler 1, so that the air flows from bottom to top through the cooling pipeline and is discharged from the air outlet 213, and the internal air flow is formed from bottom to top.

[0047] The variable-frequency high-pressure water pump 44 is started, and the water in the water tank 41 enters the spray pipeline 48 through the water delivery pipeline 42, and is finely atomized into small-diameter atomized droplets through the atomizing nozzle 49, and is mixed with the air in the same direction, increases the relative humidity of the air, and reduces the dry-bulb humidity to the wet-bulb humidity, so as to increase the temperature difference.

[0048] The pressure gauge 45 and the flowmeter 46 on the water delivery pipeline 42 detect the pressure and flow of the liquid in the water delivery pipeline 42. The safety valve 47 on the water delivery pipeline 42 protects the pipeline safety, maintains the stable pressure and prevents the water hammer phenomenon.

[0049] The high-temperature medium flows in the cooling pipeline of the air cooler 1, and the fan 212 promotes the air flow with atomized droplets. The atomized droplets are fully mixed with the air, and the temperature of the droplets is lower than that of the hot fluid in the pipeline, and the droplets have a large specific surface area. During the air flow, the droplets absorb heat from the air and evaporate, so that the temperature of the air is reduced and the humidity is increased, forming low-temperature and high-humidity air. At the same time, the high-temperature medium in the cooling pipeline transmits heat to the low-temperature air outside the pipeline through the pipeline wall, realizes the heat exchange between the pipelines, and cools the hot fluid in the pipeline.

[0050] After the working condition reaches the test requirement and is stable for 5 minutes, data acquisition is carried out:

[0051] The air inlet temperature sensor 21 is used to detect the air inlet temperature on the lower side of the cooling pipeline, and the air outlet temperature sensor 211 is used to detect the temperature of the air flow just passing through the cooling pipeline, that is, the air outlet temperature on the lower side of the air cooler 1, so that the temperature difference of the air flow before and after passing through the cooling pipeline of the air cooler 1 can be obtained.

[0052] The air inlet differential pressure gauge 22 is used to detect the air side inlet air pressure below the cooling pipeline, and the air outlet differential pressure gauge 29 is used to detect the air pressure of the air flow just passing through the cooling pipeline. The air inlet differential pressure gauge 22 and the air outlet differential pressure gauge 29 constitute a differential pressure test loop for testing the air inlet and outlet pressure difference of the air cooler 1 to be tested, so as to obtain the pressure drop of the air flow at the inlet, and further obtain the flow resistance performance of the air side.

[0053] The air humidity sensor one 23 is used to detect the air side inlet humidity below the cooling pipeline, the air humidity sensor two 24 is used to detect the air humidity flowing through the cooling pipeline, and the air humidity sensor three 25 is used to detect the humidity of the air flow just passing through the cooling pipeline.

[0054] The air speed of the outlet air can be obtained by the anemometer 210; the collected data is synchronized to the computer system to calculate the air side heat transfer coefficient and pressure drop.

[0055] The thermocouple one 26 arranged at the inlet side of each tube of the cooling pipeline of the air cooler 1 to be tested, the thermocouple two 27 arranged at the outer tube surface of the tube, and the thermocouple three 28 arranged at the outlet side are used to test the medium temperature and temperature difference at the inlet, outlet and heat exchange process of the pipeline.

[0056] The liquid inlet pressure detection device 311 and the liquid outlet pressure detection device 317 are used to obtain the pressure difference of the liquid before and after passing through the air cooler 1 to be tested, so as to provide basic data for testing the flow resistance performance of the air cooler 1 to be tested.

[0057] The liquid inlet flow regulating valve 310 and the liquid outlet flow regulating valve 315 are used to obtain the flow difference of the test medium before and after passing through the air cooler 1 to be tested, and the collected data is synchronized to the computer system to calculate the fluid medium side heat load and the tube heat transfer coefficient of the air cooler 1 to be tested.

[0058] The air inlet temperature sensor one 21, the air inlet differential pressure gauge 22, the air humidity sensor one 23, the air humidity sensor two 24, the air humidity sensor three 25, the air outlet differential pressure gauge 29 and the air outlet temperature sensor two 211 are all detected by sensors, and the collected data is accurate and reliable, and the detection sensitivity is high.

[0059] In addition, the liquid temperature sensor one 35, the liquid temperature sensor two 36, the liquid temperature sensor three 37, the liquid temperature sensor four 38, the liquid temperature sensor five 312 and the liquid temperature sensor six 316 are all liquid temperature sensors; the liquid inlet pressure detection device 311, the liquid outlet pressure detection device 317 and the pressure gauge 45 are all liquid pressure detection devices, which adopt pressure transmitters; and all the flowmeters 46 are turbine flowmeters 46.

[0060] The air inlet temperature sensor 21, the air inlet differential pressure gauge 22, the air humidity sensor 23, the air humidity sensor 24, the air humidity sensor 25, the thermocouple 26, the thermocouple 27, the thermocouple 28, the air outlet differential pressure gauge 29, the air speed meter 210, the air outlet temperature sensor 211, the liquid temperature sensor 35, the liquid temperature sensor 36, the liquid temperature sensor 37, the liquid temperature sensor 38, the liquid flow regulating valve, the liquid inlet pressure detection device 311, the liquid temperature sensor 312, the liquid flow regulating valve, the liquid temperature sensor 316, the liquid outlet pressure detection device 317, the pressure gauge 45, the flow meter 46, and the liquid level meter 410 are two or more, and are connected to the computer through the data acquisition system. The measurement data is uploaded to the computer to realize high-precision measurement and collection of humidity, temperature, pressure, flow and other parameters. The total heat transfer coefficient of the air cooler 1 to be tested is calculated based on the detected data, and the heat transfer performance test of the air cooler 1 to be tested is completed.

[0061] In the field of industrial automation control, the principle and application of sensor hardware for collecting physical quantities such as temperature and pressure, and actuator hardware for controlling equipment based on feedback signals are widely known. The control hardware involved in this patent is consistent with the common sensor-actuator control architecture in this field in terms of function implementation.

[0062] The control hardware system of the device is composed of a series of electronic devices for data acquisition, signal processing and execution control actions. These devices work together to monitor and control the running state of the air cooler to complete the performance test task. The specific hardware selection and circuit design can be determined by those skilled in the art on the basis of conventional design means according to the actual application scene and performance requirements, and does not affect the performance test method and system architecture of the core of the present application.

[0063] In this embodiment, the calculation methods of the air side heat load, the fluid medium side heat load, the heat transfer coefficient and the total heat transfer coefficient of the air cooler 1 to be tested are disclosed in GB / T 27698.1-2023 “Heat Exchanger and Heat Transfer Element Performance Test Method Part 1: General Requirements” and GB / T 27698.2-2023 “Heat Exchanger and Heat Transfer Element Performance Test Method Part 2: Heat Exchanger”, which belong to the prior art. Therefore, the calculation principle will not be described again.

[0064] Example 2

[0065] As shown in Figure 2 The difference between this embodiment and example 1 is that a turbulence mechanism located below the cooling pipeline is arranged between the cooling pipeline and the high-pressure spray system 4 in the air cooler 1 to be tested, and the other technical solutions are the same as those in example 1.

[0066] The turbulence mechanism includes horizontally arranged turbulence plates 6, the center of the turbulence plate 6 is connected with a rotating shaft 61, the rotating shaft 61 is connected with a small stepping motor, the turbulence plate 6 is driven to rotate through the small stepping motor and the rotating shaft 61, and then the air at the air inlet side is formed to have different degrees of turbulence, so that various complex air flow conditions under different working conditions are simulated.

[0067] The turbulence plate 6 can be provided with corrugated grooves or protrusions.

[0068] The principle of air turbulence is to change the flow path and velocity distribution of air to produce turbulent flow state. By reasonably designing the turbulence mechanism, the air flow can also be disturbed and adjusted to simulate the real complex working conditions.

[0069] In actual operation, the air flow in the air cooler will be affected by various environmental factors, such as the interference of external wind direction, surrounding buildings or other obstacles to the air flow, etc. These may cause turbulence of the air flow in the air cooler. By setting the turbulence plate 6 to generate turbulence in the performance test, the air flow turbulence caused by environmental factors can be simulated, so that the test results are more realistic and reliable, which helps to evaluate the performance of the air cooler in complex environment, and makes the test results closer to the actual operation.

[0070] The utility model discloses detection efficiency is high, through the performance test of the air cooling system and high pressure spray system of humidification spray type air cooler, can provide effective objective performance quantization comment, according to the test data of the spray humidification type air cooler to be measured optimization improvement, accelerate the spray humidification type air cooler to be measured research and development innovation, promote the spray humidification type air cooler to be measured energy efficiency upgrading;Through setting turbulence mechanism can simulate the air flow turbulence caused by environmental factors, so that the test results are more realistic and reliable, which helps to evaluate the performance of the air cooler in complex environment, and makes the test results closer to the actual operation.

[0071] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A performance testing device for a humidifying spray-type air cooler, characterized in that, The device includes a medium storage tank with at least one internal liquid temperature sensor. The medium storage tank is connected to the cooling pipeline inside the air cooler under test via a liquid outflow pipeline and a liquid return pipeline. The liquid outflow pipeline is equipped with a delivery pump, an inlet flow regulating valve, an inlet pressure detection device, and an inlet temperature sensor. The liquid return pipeline is equipped with an outlet flow regulating valve, an outlet pressure detection device, and an outlet temperature sensor. Inside the air cooler under test, near the air inlet side, are an air inlet temperature sensor, an air inlet differential pressure gauge, and an air humidity sensor. The cooling pipeline is equipped with an air humidity sensor. Inside the air cooler under test, near the air outflow side, are an air outlet temperature sensor, an air outlet differential pressure gauge, an air humidity sensor, and an anemometer. Each tube of the cooling pipeline has a thermocouple at its inlet side, a thermocouple on its outer surface, and a thermocouple at its outlet side.

2. The humidifying spray-type air cooler performance testing device according to claim 1, characterized in that, The medium storage tank is equipped with a replenishment pipe and a drain pipe.

3. The humidifying spray-type air cooler performance testing device according to claim 1, characterized in that, The medium storage tank is equipped with a stirring mechanism and a heating mechanism.

4. The humidifying spray-type air cooler performance testing device according to claim 1, characterized in that, The liquid discharge line and the liquid return line are connected to the cooling line via a first adapter and a second adapter, respectively.

5. The humidifying spray-type air cooler performance testing device according to claim 1, characterized in that, The air cooler under test has an air outlet located above the cooling pipe, and a fan is installed near the air outlet.

6. The humidifying spray-type air cooler performance testing device according to claim 1, characterized in that, The air cooler under test is equipped with a spray mechanism located below the cooling pipes.

7. The humidifying spray-type air cooler performance testing device according to claim 6, characterized in that, The spray mechanism includes a spray line located below the cooling pipe, the spray line being connected to a water tank, and a plurality of atomizing nozzles facing the cooling pipe installed on the spray line.

8. The humidifying spray-type air cooler performance testing device according to claim 7, characterized in that, The spray pipeline is connected to the water tank via a water supply pipe. A pipeline filter, a variable frequency high-pressure water pump, a pressure gauge, a flow meter, and a safety valve are installed sequentially on the water supply pipe along the direction of water flow.

9. The humidifying spray-type air cooler performance testing device according to claim 8, characterized in that, The water tank is equipped with a water supply pipe, and a level gauge is installed inside the water tank.

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