Performance testing equipment for heat exchanger

Abstract

The utility model relates to the field of performance detection, and discloses heat exchanger performance test equipment, which comprises a rack, a heat exchanger test cabinet, a flow control device, a temperature control device and a calculation and measurement device, the heat exchanger test cabinet provides a test space, the flow control device is connected with the heat exchanger test cabinet through a pipeline to regulate and control flow, the temperature control device is arranged in the test cabinet to control temperature, and the calculation and measurement device is electrically connected with the flow control device and the temperature control device and used for detecting and processing data output by the flow control device and the temperature control device. Multiple flow and temperature scenes are simulated through the flow control device and the temperature control device, the flow control device and the temperature control device cooperate to create a real test working condition, performance data of the heat exchanger are obtained in real time through the calculation and measurement device, and a reliable basis is provided for performance evaluation of the heat exchanger.

Description

Technical Field

[0001] This utility model relates to the field of performance testing, and in particular to a heat exchanger performance testing device. Background Technology

[0002] In the current field of heat exchanger performance testing, there is a general lack of precise and efficient temperature and flow control methods. Traditional heat exchanger test benches, when simulating actual operating conditions, often lack precise temperature control, making it difficult to stably maintain the set temperature value, leading to deviations in test results. Simultaneously, flow control is also relatively coarse, unable to achieve fine-tuning according to the testing requirements of different heat exchangers; this results in insufficient reliability of heat exchanger performance data, failing to truly reflect the performance of heat exchangers in real-world operating environments. Utility Model Content

[0003] The present invention aims to improve at least one technical problem in the prior art.

[0004] This utility model provides a heat exchanger performance testing device, including a frame, on which the following are mounted:

[0005] A heat exchanger test chamber, wherein the interior of the heat exchanger test chamber has a test space;

[0006] A flow control device is mounted on the frame and connected to the pipeline of the heat exchanger test chamber; the flow control device is used to control the flow rate in the test space inside the heat exchanger test chamber.

[0007] A temperature control device is installed inside the heat exchanger test chamber; the temperature control device is used to control the temperature of the test space inside the heat exchanger test chamber.

[0008] A computational measuring device is mounted on the frame; the computational measuring device is electrically connected to the temperature control device and the flow control device; the computational measuring device is used to detect and process the data output by the temperature control device and the flow control device.

[0009] The beneficial effects of this invention are as follows: the flow control device can precisely adjust the fluid flow rate, simulating various usage scenarios from low to high flow rates; the temperature control device can accurately control the temperature, covering various temperature ranges that the heat exchanger may encounter in actual applications; the two work together to create test conditions that are highly similar to the real usage environment, and the data output by the temperature control device and the flow control device are monitored and processed by the computational measurement device to obtain the performance data of the heat exchanger in real time, which greatly improves the effectiveness of the test and provides a more reliable basis for the performance evaluation of the heat exchanger.

[0010] As some sub-solutions of the above technical solution, the flow control device includes a motor, a pump, and a flow meter; the motor is mounted on the frame, the output shaft of the motor is connected to the pump, and the motor is used to drive the pump to operate; the outlet of the pump is connected to the heat exchanger test cabinet through a pipe, the flow meter is mounted on the pipe between the pump and the heat exchanger test cabinet, and the flow meter is electrically connected to the calculation and measurement device.

[0011] As some sub-solutions of the above technical solutions, the calculation and measurement device includes a flow controller, which is mounted on the frame and electrically connected to the motor and the flow meter. The flow controller controls the operation of the motor according to the flow signal fed back by the flow meter.

[0012] As a sub-solution of the above technical solution, the calculation and measurement device further includes a first display screen, which is disposed on the frame and electrically connected to the flow controller; the first display screen is used to receive and display the data output by the flow controller.

[0013] As a sub-solution of the above technical solution, the flow control device further includes a flow regulating valve, which is installed on the pipeline between the pump and the heat exchanger test cabinet.

[0014] As a sub-solution of the above technical solution, the motor is a brushless motor.

[0015] As some sub-solutions of the above technical solution, the temperature control device includes a heating tube and a temperature transmitter; the heating tube is installed inside the heat exchanger test chamber and is used to heat the test space inside the heat exchanger test chamber; the temperature transmitter is installed at the temperature outlet of the heat exchanger test chamber and is used to detect the temperature at the temperature outlet.

[0016] As a sub-solution of the above technical solution, the calculation and measurement device further includes a temperature controller, which is mounted on the frame and electrically connected to the heating tube and the temperature transmitter; the temperature controller controls the heating tube to heat according to the temperature signal fed back by the temperature transmitter.

[0017] As a sub-solution of the above technical solution, the calculation and measurement device further includes a second display screen, which is disposed on the frame and electrically connected to the temperature controller; the second display screen is used to receive and display the data output by the temperature controller.

[0018] As some sub-solutions of the above technical solution, an air filter is also included, which is installed on the heat exchanger test chamber; the air filter is used to filter impurities inside the heat exchanger test chamber. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is another structural schematic diagram of the present invention.

[0022] In the attached image:

[0023] 100-rack;

[0024] 200-Heat Exchanger Test Chamber;

[0025] 301 - Motor; 302 - Pump; 303 - Flow meter; 304 - Flow regulating valve;

[0026] 401 - Heating element; 402 - Temperature transmitter;

[0027] 501 - Flow controller; 502 - Temperature controller; 503 - First display screen; 504 - Second display screen;

[0028] 600-Air Filter. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "several" means an indefinite quantity, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features. The use of "and / or" throughout the text indicates three parallel solutions; for example, A and / or B indicates a solution satisfied by A, a solution satisfied by B, or a solution satisfied by both A and B.

[0032] In the description of this utility model, if there is a short phrase containing multiple parallel features, the modifier in the phrase defines the closest feature. For example, "B, C, and E connected to D are set on A" means that B is set on A, E is connected to D, and C is not defined. However, modifiers indicating the relationship between features, such as "interval setting" or "circular arrangement," do not fall into this category. Modifiers preceded by "all" define all features in the short phrase. For example, "B, C, and D are all set on A" means that B, C, and D are all set on A. In statements where the subject is omitted, the omitted subject is the subject of the preceding statement. That is, "A has B and includes C" means that A has B and A includes C.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] The following is combined Figures 1 to 2 The embodiments of this utility model are described below.

[0035] This embodiment of a heat exchanger performance testing device includes a frame 100, on which:

[0036] Heat exchanger test chamber 200, the interior of heat exchanger test chamber 200 has a test space;

[0037] A flow control device is installed on the frame 100 and connected to the pipeline of the heat exchanger test chamber 200; the flow control device is used to control the flow rate in the test space inside the heat exchanger test chamber 200.

[0038] A temperature control device is installed inside the heat exchanger test chamber 200; the temperature control device is used to control the temperature of the test space inside the heat exchanger test chamber 200.

[0039] The computational measuring device is mounted on the frame 100; the computational measuring device is electrically connected to the temperature control device and the flow control device; the computational measuring device is used to detect and process the data output by the temperature control device and the flow control device.

[0040] The flow control device can precisely adjust the fluid flow rate, simulating various usage scenarios from low to high flow rates; the temperature control device can accurately control the temperature, covering various temperature ranges that the heat exchanger may encounter in actual applications; the two work together to create test conditions that are highly similar to the real usage environment, and then the data output by the temperature control device and the flow control device are monitored and processed by the computational measurement device to obtain the heat exchanger's performance data in real time.

[0041] Specifically, the flow control device includes a motor 301, a pump 302, and a flow meter 303; the motor 301 is mounted on the frame 100, and the output shaft of the motor 301 is connected to the pump 302, and the motor 301 is used to drive the pump 302 to operate; the outlet of the pump 302 is connected to the heat exchanger test chamber 200 through a pipe, and the flow meter 303 is mounted on the pipe connecting the pump 302 and the heat exchanger test chamber 200.

[0042] Specifically, the calculation and measurement device includes a flow controller 501, which is mounted on the frame 100. The flow controller 501 is electrically connected to the motor 301 and the flow meter 303. The flow controller 501 controls the operation of the motor 301 according to the flow signal fed back by the flow meter 303.

[0043] Specifically, the calculation and measurement device also includes a first display screen 503, which is mounted on the frame 100 and electrically connected to the flow controller 501. The first display screen 503 is used to receive and display the data output by the flow controller 501.

[0044] Specifically, the flow control device also includes a flow regulating valve 304, which is installed on the pipeline connecting the pump 302 and the heat exchanger test cabinet 200.

[0045] Motor 301 is mounted on frame 100, and its output shaft is connected to pump 302 via a coupling. After starting motor 301, it drives pump 302 to draw fluid from the outside, pressurize it, and transport it through pipeline to heat exchanger test chamber 200. Flow meter 303 is installed on the pipeline between pump 302 and heat exchanger test chamber 200. Flow meter 303 monitors the fluid flow rate in the pipeline in real time and transmits the flow data as an electrical signal to flow controller 501 in the computational measurement device.

[0046] The flow controller 501 is mounted on the frame 100 and is electrically connected to both the motor 301 and the flow meter 303. After receiving the flow signal from the flow meter 303, the flow controller 501 processes the signal internally and, based on a preset flow value, sends a control command to the motor 301. For example, when the actual flow rate is lower than the preset value, the flow controller 501 increases the drive current of the motor 301, causing the motor 301 to rotate faster and increasing the flow output of the pump 302; conversely, it decreases the drive current of the motor 301, reducing the flow output of the pump 302, thereby achieving precise control of the flow rate within the heat exchanger test chamber 200. The flow controller 501 can be an Omega FTB controller or a Bronkhorst F-201 controller.

[0047] A flow regulating valve 304 is installed on the pipeline connecting pump 302 and heat exchanger test cabinet 200. The flow regulating valve 304 is electrically connected to the flow controller 501. When fine-tuning of the flow is required, the flow controller 501 can control the opening of the flow regulating valve 304 in addition to adjusting the speed of motor 301. Under small flow regulation requirements, fine-tuning of the opening of the flow regulating valve 304 is prioritized to achieve more precise flow regulation. Under large flow regulation, the speed regulation of motor 301 is combined with dual control to ensure accurate and stable flow, so as to meet the special flow requirements of different heat exchanger tests.

[0048] The first display screen 503 is electrically connected to the flow controller 501. The flow controller 501 processes the real-time flow value collected by the flow meter 303 and calculates the heat exchanger pressure drop curve and flow change curve to reflect the performance of the heat exchanger. The flow controller 501 then transmits the data to the first display screen 503 in the form of electrical signals, so that the operator can monitor the flow control and the performance changes of the heat exchanger in real time.

[0049] Specifically, motor 301 is a brushless motor 301. By selecting a brushless motor 301 as the drive source, the electronic commutation system of the brushless motor 301 replaces the mechanical commutator of the traditional brushed motor 301, avoiding brush wear and electrical spark interference problems. Its high-precision control characteristics make the flow output of pump 302 more stable and accurate, improving the overall performance of the flow control device.

[0050] Specifically, the temperature control device includes a heating tube 401 and a temperature transmitter 402; the heating tube 401 is installed inside the heat exchanger test chamber 200 and is used to heat the test space inside the heat exchanger test chamber 200; the temperature transmitter 402 is installed at the temperature outlet of the heat exchanger test chamber 200 and is used to detect the temperature at the temperature outlet.

[0051] Specifically, the computational measurement device also includes a temperature controller 502, which is mounted on the frame 100 and electrically connected to the heating tube 401 and the temperature transmitter 402. The temperature controller 502 controls the heating tube 401 to heat according to the temperature signal fed back by the temperature transmitter 402. The temperature controller can be a Siemens Sitrans T controller or a Honywell T6300 controller.

[0052] Specifically, the calculation and measurement device also includes a second display screen 504, which is mounted on the frame 100 and electrically connected to the temperature controller 502; the second display screen 504 is used to receive and display the data output by the temperature controller 502.

[0053] Heating tubes 401 are arranged inside the heat exchanger test chamber 200. There can be multiple heating tubes 401, and different heating tubes 401 have different heating powers. After the heating tubes 401 are connected to the power supply, electrical energy is converted into heat energy to heat the air in the test space inside the heat exchanger test chamber 200. By controlling the power supply time and power of the heating tubes 401, the temperature inside the heat exchanger test chamber 200 is controlled. A temperature transmitter 402 is installed at the temperature outlet of the heat exchanger test chamber 200 to ensure that the temperature sensing element of the temperature transmitter 402 can fully contact the hot fluid and accurately measure the temperature. The temperature transmitter 402 converts the detected temperature signal into a standard electrical signal and transmits it to the temperature controller 502, providing real-time data for precise temperature control.

[0054] The second display screen 504 is electrically connected to the temperature controller 502. The temperature controller 502 processes the real-time temperature data collected by the temperature transmitter 402, calculates the temperature change curve that reflects the performance of the heat exchanger, and then transmits it to the second display screen 504 in the form of an electrical signal. This allows the operator to understand the temperature changes in the test chamber and thus judge the performance changes of the heat exchanger.

[0055] Specifically, it also includes an air filter 600, which is installed on the heat exchanger test chamber 200. The air filter 600 is used to filter impurities inside the heat exchanger test chamber 200. The heat exchanger test chamber 200 is provided with an air inlet, and the air filter 600 is installed on the air inlet. The air filter 600 adopts a multi-layer filter structure to prevent impurities in the air from entering the interior of the heat exchanger test chamber 200, ensuring a clean testing environment, preventing impurities from entering the heat exchanger, avoiding blockage of the tiny channels inside the heat exchanger, and protecting the performance of the heat exchanger from being affected.

[0056] The preferred embodiments of the present invention have been described in detail above, but the present disclosure is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present disclosure.

Claims

1. A heat exchanger performance testing apparatus, characterized by: The heat exchanger test cabinet has a test space inside; The flow control device is arranged on the rack and connected with the heat exchanger test cabinet pipeline; the flow control device is used for controlling the flow of the test space inside the heat exchanger test cabinet; The temperature control device is arranged inside the heat exchanger test cabinet; the temperature control device is used for controlling the temperature of the test space inside the heat exchanger test cabinet; The calculation and measurement device is arranged on the rack; the calculation and measurement device is electrically connected with the temperature control device and the flow control device; the calculation and measurement device is used for detecting and processing the data output by the temperature control device and the flow control device. The flow control device includes a motor, a pump and a flow meter; the motor is arranged on the rack, the output shaft of the motor is connected with the pump, and the motor is used for driving the pump to operate; the outlet of the pump is connected with the heat exchanger test cabinet through a pipeline, and the flow meter is arranged on the pipeline between the pump and the heat exchanger test cabinet; the flow meter is electrically connected with the calculation and measurement device.

2. The heat exchanger performance testing apparatus of claim 1, wherein: The calculation and measurement device includes a flow controller, the flow controller is arranged on the rack, the flow controller is electrically connected with the motor and the flow meter, and the flow controller is used for controlling the motor to operate according to the flow signal fed back by the flow meter.

3. The heat exchanger performance testing apparatus of claim 2, wherein: The calculation and measurement device further includes a first display screen, the first display screen is arranged on the rack, and the first display screen is electrically connected with the flow controller; the first display screen is used for receiving and displaying the data output by the flow controller.

4. The heat exchanger performance testing apparatus of claim 3, wherein: The flow control device further includes a flow regulating valve, which is installed on the pipeline between the pump and the heat exchanger test cabinet.

5. The heat exchanger performance testing apparatus of claim 2, wherein: The motor is a brushless motor.

6. The heat exchanger performance testing apparatus of claim 2, wherein: The temperature control device includes a heating pipe and a temperature transmitter; the heating pipe is arranged inside the heat exchanger test cabinet, and is used for heating the test space inside the heat exchanger test cabinet; the temperature transmitter is arranged on the temperature outlet of the heat exchanger test cabinet, and is used for detecting the temperature of the temperature outlet.

7. The heat exchanger performance testing apparatus of claim 1, wherein: The calculation and measurement device further includes a temperature controller, the temperature controller is arranged on the rack, and the temperature controller is electrically connected with the heating pipe and the temperature transmitter; the temperature controller is used for controlling the heating pipe to heat according to the temperature signal fed back by the temperature transmitter.

8. The heat exchanger performance testing apparatus of claim 7, wherein: The calculation and measurement device further includes a second display screen, the second display screen is arranged on the rack, and the second display screen is electrically connected with the temperature controller; the second display screen is used for receiving and displaying the data output by the temperature controller.

9. The heat exchanger performance testing apparatus of claim 8, wherein: The air filter is arranged on the heat exchanger test cabinet; the air filter is used for filtering impurities in the heat exchanger test cabinet.

10. The heat exchanger performance testing apparatus of claim 1, wherein: ​

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