Transverse flow cooling tower filler testing device

Abstract

The utility model discloses a transverse flow cooling tower filler test device, which belongs to the technical field of cooling towers and comprises a shell formed by mutually communicating and combining an air bellow module and a tower body module. An air inlet of the air bellow module is open, and a butt joint is provided with a grating; a pitot tube anemograph and a second dry and wet bulb thermometer are arranged in the air bellow; a filler module, a water collecting basin, a water distribution module and a fan module are arranged in the tower body module; the filler module is mounted at a communication port of the air bellow module and the tower body module; the water collecting basin is positioned below the filler module and is used for collecting cooling water flowing down from the filler module; the water distribution module is positioned above the filling module and comprises a water distribution basin and a spray head; the draught fan module is located above the side edge of the filling module and comprises an air duct, a draught fan and a permanent magnet synchronous motor. And a first dry-wet bulb thermometer is arranged in the air duct. According to the utility model, actual working conditions can be simulated, the heat transfer performance of the filler can be accurately tested, and reliable data support is provided for the design and model selection of the cooling tower and the optimization of the filler.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the cooling tower technical field, concretely is a kind of cross-flow cooling tower packing test device. BACKGROUND

[0002] Cooling tower as important heat exchange equipment in industrial production, its performance directly influences the efficiency and energy consumption of whole process.Packing as the core component of cooling tower, its heat transfer performance plays a decisive role on cooling effect.In practical application, the performance of packing is influenced by multiple factors, such as packing volume, sprinkling density and inlet air velocity, etc.In the past, the test of the performance of different packing is usually carried out on the cooling tower that has been installed, however, this method has many limitations.On the one hand, packing volume, sprinkling density and inlet air velocity are usually fixed, the test condition is relatively single, and it is difficult to comprehensively evaluate the performance of packing under different working conditions;on the other hand, the test process is easily disturbed by external environmental factors, such as environmental wind, which makes the accuracy and reliability of test data greatly discounted, and also makes the performance comparison between different packings lack of fairness and scientificity. SUMMARY

[0003] In view of the above problems, the utility model provides a kind of cross-flow cooling tower packing test device, can simulate actual working condition, realize the accurate test of packing heat transfer performance, provide reliable data support for the design, selection and optimization of cooling tower.

[0004] To achieve the above object, the utility model adopts the technical scheme of a kind of cross-flow cooling tower packing test device, including the shell that is formed by the intercommunication combination of wind box module and tower body module;The inlet of wind box module is open, and the docking port connected with tower body module is provided with grid;Wind box is equipped with pitot tube anemometer and second dry and wet bulb thermometer;Tower body module is provided with packing module, water collecting basin, water distribution module and fan module;Packing module is installed in the intercommunication port position of wind box module and tower body module;Water collecting basin is located below packing module, for collecting the cooling water flowing down from packing module;Water distribution module is located above packing module, including water distribution basin and spray head;Fan module is located above the side of packing module, including air duct, fan and permanent magnet synchronous motor;Air duct is equipped with first dry and wet bulb thermometer.

[0005] The test device can simulate various actual working conditions and accurately test the heat transfer performance of the packing through the cooperative work of the wind box module, the tower body module, the water distribution module, the fan module and the like. The air inlet end of the wind box module is designed as an open structure, and the tower body module is provided with a grid, which is beneficial to the smooth flow of air and reduces air flow interference. The Pitot tube anemometer and the second dry and wet bulb thermometer in the wind box can monitor and adjust the wind speed and temperature in real time, so as to ensure the stability and accuracy of the test conditions. The packing module, the water collecting basin, the water distribution module and the fan module in the tower body module are reasonably arranged, the water distribution basin and the spray head of the water distribution module can uniformly distribute water, and the requirements of different water distribution densities can be met. The first dry and wet bulb thermometer is arranged in the air duct of the fan module, which can accurately monitor the change of air temperature and provide reliable data support for the evaluation of the heat transfer performance of the packing.

[0006] As a further improvement of the above scheme, one end of the water collecting basin is located below the packing module, and the other end is located below the fan module.

[0007] The above technical scheme produces beneficial effects: this design enables the water collecting basin to more comprehensively collect the cooling water flowing down from the packing module, and also can receive the condensate water generated by the fan module, etc., avoiding the waste of water resources and the water stains left on the surrounding environment of the device, maintaining the cleanliness and stability of the test environment, and being beneficial to improving the accuracy of the test data.

[0008] As a further improvement of the above scheme, the area of the water collecting basin covers the lower end surface of the packing module and the lower part of the fan module.

[0009] The above technical scheme produces beneficial effects: further ensures that the cooling water and possible condensate water can be completely collected, regardless of the change of the water outlet direction of the packing module or whether the water droplets fall from the fan module during operation, all within the coverage of the water collecting basin, effectively preventing the interference of water overflow or dripping on the test results, and improving the reliability and stability of the entire test device.

[0010] As a further improvement of the above scheme, the air duct module is located inside the tower body module and is connected to the outside at the upper end; the air duct module and the packing module are horizontally staggered.

[0011] The above technical scheme produces beneficial effects: the upper end of the air duct module is connected to the outside, which is beneficial to the smooth exhaust of air and maintains the stable circulation of air flow in the device. The air duct module and the packing module are horizontally staggered, which avoids the direct impact of air flow on the packing module, reduces the interference of air flow on the packing module, enables the air to flow more uniformly through the packing, and improves the heat transfer efficiency of the packing and the accuracy of the test data.

[0012] As a further improvement of the above scheme, the second dry and wet bulb thermometer is located above the fan.

[0013] The beneficial effects of the above technical solution are: the second dry-wet bulb thermometer is arranged above the fan, which can more accurately monitor the air temperature after passing through the fan, and in combination with the first dry-wet bulb thermometer in the air duct, the temperature change of the air at different positions can be comprehensively mastered, which provides more abundant data support for analyzing the heat transfer performance of the filler, and is beneficial to accurately evaluating the performance of the filler under different working conditions.

[0014] As a further improvement of the above scheme, the shell of the wind box module and the tower body module is composed of a support and a surrounding plate covering the support.

[0015] The beneficial effects of the above technical solution are: the shell has sufficient strength and stability, and can be easily assembled and disassembled, facilitating transportation, installation and maintenance of the device. At the same time, the covering of the surrounding plate can effectively prevent the interference of external environmental wind, ensure that the test is carried out in a relatively stable airflow environment, and improve the reliability of the test results.

[0016] As a further improvement of the above scheme, a hoisting machine is arranged above the tower body module for replacing the water distribution module or the fan module.

[0017] The beneficial effects of the above technical solution are: the arrangement of the hoisting machine greatly facilitates the replacement and maintenance of the water distribution module and the fan module. When different types of water distribution modules need to be replaced to adapt to different water density requirements, or the fan module needs to be repaired or replaced, the hoisting machine can easily lift these modules to the designated position, improving the operation convenience and work efficiency of the device, and reducing the difficulty and risk of manual operation.

[0018] As a further improvement of the above scheme, an observation window is arranged on the side edge of the water distribution basin.

[0019] The beneficial effects of the above technical solution are: the arrangement of the observation window facilitates real-time observation of the distribution of water in the water distribution basin and the working state of the spray head, ensures uniform water distribution, and timely discovers and handles problems such as blockage and uneven distribution that may occur during water distribution, thereby ensuring the stability and accuracy of the water density during the test, and is beneficial to improving the reliability of the filler heat transfer performance test.

[0020] The overall beneficial effects of the present application compared with the prior art are:

[0021] The cross-flow cooling tower filler test device can simulate various actual working conditions, effectively eliminates the influence of environmental wind, and realizes accurate testing of the heat transfer performance of the filler through reasonable modular design and accurate monitoring equipment configuration. The device is convenient to operate and maintain, and can flexibly adjust parameters such as filler volume, water spraying density and air inlet wind speed, thereby providing reliable data support for the design, selection and optimization of the cooling tower. Compared with the traditional method of testing the performance of the filler on the installed cooling tower, the device has higher testing accuracy, wider applicability and better comparability, can effectively overcome the problems of single testing condition, poor data accuracy and lack of scientific comparison in the past, and promotes the development and progress of the field of cooling tower technology. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of the utility model.

[0023] Figure 2 It is a tower body module internal structure schematic view.

[0024] Figure 3 It is a wind box module structure schematic view.

[0025] Figure 4 It is a water distribution basin structure schematic view.

[0026] Figure 5 It is a wind cylinder structure schematic view.

[0027] In the drawing: 1, wind box module; 2, water distribution module; 3, first dry and wet bulb thermometer; 4, tower body module; 5, fan module; 6, water collecting basin; 7, filler module; 8, second dry and wet bulb thermometer; 9, pitot tube anemometer; 10, coaming; 11, air inlet; 12, butt joint; 21, observation window; 22, spray head; 51, wind cylinder; 52, fan; 53, permanent magnet synchronous motor. DETAILED DESCRIPTION

[0028] In order to make those skilled in the art better understand the technical solutions, the utility model will be described in detail below in combination with embodiments, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the utility model.

[0029] I. Installation of the device

[0030] (I), installation steps:

[0031] 1. Installation of wind box module 1 and tower module 4: Place the wind box module 1 and tower module 4 in the pre-selected appropriate location, with the air inlet 11 of the wind box module 1 facing the direction of incoming air to facilitate smooth air entry, and the other end tightly connected to the tower packing module 7 to ensure the sealing of the connection to prevent air leakage. At the same time, carefully check whether the other surfaces of the wind box module 1 are tightly sealed to ensure that external air cannot enter through non-air inlet 11, thereby avoiding environmental wind interference with test results.

[0032] 2. Installation of water distribution module 2: According to specific test requirements, select the appropriate water distribution module 2 with the appropriate nozzle 22 model. Install the selected water distribution module 2 on the device and connect it with the tower packing module 7 to ensure good sealing between the two to prevent water leakage during transportation, affecting the accuracy of the test and the normal operation of the device.

[0033] 3. Installation of fan module 5: Install the fan module 5, including the high wind cylinder 51, the fan 52, and the permanent magnet synchronous motor 53. During installation, ensure that the dry and wet bulb thermometer inside the fan module 5 is installed correctly to accurately monitor the temperature and humidity changes of the air, providing reliable basis for subsequent data analysis.

[0034] 4. Installation of packing module 7: Install the packing module 7, packing frame fence 10, and security part at the communication between the tower module 4 and the wind box module 1. Install the tower heightening module as needed to adapt to different height requirements of the packing test, ensuring that the packing can effectively exchange heat in the appropriate height and space.

[0035] 5. Installation of tower maintenance frame and hoisting machine. Ensure that the hoisting machine can operate normally to facilitate the subsequent replacement of the water distribution module 2 and the tower packing module 7, improving the flexibility and maintainability of the device.

[0036] 6. Connection of water pipes: Connect the inlet and outlet water pipes and install the electromagnetic valve for controlling the flow and the corresponding thermometer on the pipeline. During connection, ensure that there is no leakage at the connection to ensure the normal circulation of water and the accurate control of flow and temperature, thereby providing stable water conditions for the heat transfer performance test of the packing.

[0037] (II) Debugging steps:

[0038] 1. Power on and fan 52 start: Turn on the power and start the permanent magnet synchronous motor 53 to make the fan 52 start rotating. Adjust the speed of the fan 52 and observe the data of the pitot tube anemometer 9 in the wind box to ensure that the required air speed at the air inlet 11 is met, providing stable airflow conditions for the packing test.

[0039] 2. Inspection of water distribution module 2: Check if the spray heads 22 of the water distribution module 2 are working properly, observe the water distribution of the spray heads 22, and ensure that the water distribution is uniform and reaches the expected water density. Uniform water distribution can ensure that the filler surface is fully exposed to water, improve heat transfer efficiency, and ensure the accuracy of test results.

[0040] 3. Inspection of thermometers and solenoid valves: Check if each thermometer and solenoid valve is working properly, and ensure that it can accurately monitor and control the temperature and flow of water in and out. Accurate temperature and flow control is crucial for simulating different working conditions and obtaining reliable data.

[0041] 4. Overall inspection of the device: Carefully inspect the entire device to ensure that all connections are sealed well and there is no water or air leakage. The sealing of the device directly affects the stability of the test environment and the reliability of the data, and must be fully valued.

[0042] II. Operation of the device

[0043] (I) Determine the test conditions:

[0044] According to the test requirements, determine the volume of the filler, the water density and the air speed at the inlet 11, etc. The selection of these parameters should be based on the actual application scene requirements and the purpose of the filler performance test, such as evaluating the heat transfer effect of the filler under different working conditions, optimizing the design of the filler, etc.

[0045] (II) Install the filler and water distribution module 2:

[0046] 1. Installation of the filler: Install the selected volume of filler at the interface 12 between the tower module 4 and the wind box module 1, ensure that the filler is installed firmly and evenly distributed, to ensure that it can normally play a heat transfer role during the test process, avoid problems such as poor air flow or uneven water distribution caused by improper installation of the filler.

[0047] 2. Installation of the water distribution module 2: According to the required water density, select the corresponding water distribution module 2 to install on the device. Different water distribution modules 2 can provide different water densities to meet the water demand of the filler under different test conditions, so as to comprehensively evaluate the performance of the filler.

[0048] (III) Connect the water pipe and start the device:

[0049] 1. Connection of water pipe: Connect the inlet and outlet water pipes, and ensure that the solenoid valves and thermometers on the pipeline are installed correctly. Correct installation can ensure the normal flow of water and accurate monitoring of parameters, providing a stable water environment for the test of the filler.

[0050] 2. Start-up of the device: Turn on the power supply, start the permanent magnet synchronous motor 53, and make the fan 52 begin to rotate. By adjusting the rotational speed of the fan 52 and observing the data of the pitot tube anemometer 9, the wind speed at the inlet 11 is brought to the predetermined requirement, creating suitable airflow conditions for the test of the filler.

[0051] (IV) Adjust the rotational speed of the fan 52 and monitor the data:

[0052] During the operation of the fan 52, the temperatures at the inlet and outlet, the dry and wet bulb temperatures at the inlet and outlet, the wind speed at the inlet 11, the flow rate, and the volume pitch of the filler are recorded synchronously. These data are important basis for evaluating the heat transfer performance of the filler and need to be accurately and comprehensively recorded.

[0053] (V) Replace the water distribution module 2 and the filler volume:

[0054] 1. Replace the water distribution module 2: When it is necessary to replace the water distribution density level, first remove the water inlet pipe, use the crane on the tower module 4 to replace the corresponding water distribution module 2, and adjust it to the required water distribution density through the electromagnetic valve controlling the flow rate. In this way, different water distribution conditions can be simulated flexibly, and the performance of the filler under different water distribution densities can be tested and compared.

[0055] 2. Replace the filler volume: When it is necessary to replace the filler volume, i.e., replace the filler height, use the crane to hoist the water distribution module 2 and the fan module 5 to the specified height, then increase the tower height module in the gap between the filler module 7 and the water distribution module 2 or the fan module 5, reinstall the filler of the specified height, and ensure that it is installed firmly and sealed well. By changing the filler volume, the influence of the filler height on the heat transfer performance can be studied, providing data support for the optimization design of the filler.

[0056] (VI) Data processing and analysis:

[0057] The recorded data are sorted and analyzed to fit the heat transfer and mass transfer coefficient formula of the filler, thereby evaluating the heat transfer performance of the filler under different conditions. Through in-depth analysis of the data, the heat transfer law of the filler can be revealed, providing scientific basis for the design, selection, and improvement of the cooling tower.

[0058] III. Working principle of the device

[0059] The cross-flow cooling tower filler test device realizes the test of the heat transfer performance of the filler through the cooperative work of the air bellow module 1, the water distribution module 2, the fan module 5, the filler module 7 and the tower body module 4. The air bellow module 1 eliminates the influence of the environmental wind on the test through the grid and sealing design, and uses the pitot tube anemometer 9 and the dry and wet bulb thermometer to monitor and adjust the wind speed and temperature in real time, so as to ensure the stability and accuracy of the test conditions. The water distribution module 2 realizes adjustable water spraying density through different types of nozzles 22, so as to meet the needs of different test conditions. The filler in the tower body filler module 7 exchanges heat under specific wind speed and water spraying density, and the heat transfer effect of the filler can be evaluated by monitoring the temperature change and other data of the inlet and outlet water. The tower body module 4 provides convenience for the maintenance and adjustment of the device, so as to ensure that the device can flexibly adapt to different test requirements.

[0060] The working principle of the device is based on the basic principle of heat exchange. By accurately controlling and monitoring the flow, temperature and other parameters of air and water, the working environment in the actual cooling tower is simulated, so as to deeply test and evaluate the heat transfer performance of the filler, which is the core component. Compared with the traditional method of testing the performance of the filler on the installed cooling tower, the device has higher test precision, wider applicability and better comparability, can effectively overcome the problems of single test condition, poor data accuracy and lack of scientific comparison in the past, and provides strong support for the development and progress of the cooling tower technology field.

[0061] It should be noted that in this paper, the terms: include, contain and any other variants are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. In this paper, specific examples are applied to the principle and implementation of the technical scheme of the utility model, and the above examples are only used to help understand the method and core idea of the utility model. The above is only the preferred embodiment of the utility model, it should be pointed out that due to the limitation of language expression, there are infinite specific structures objectively, for ordinary technical personnel in this technical field, without departing from the principle of the utility model, some improvements, decorations or changes can be made, or the above technical features can be combined in a proper way, these improvements, decorations, changes or combinations, or the direct application of the concept and technical scheme of the utility model to other occasions without improvement, should be regarded as the protection range of the utility model.

Claims

1. A crossflow cooling tower packing test device, characterized by, The shell is composed of the wind box module (1) and the tower module (4) connected with each other; the air inlet (11) of the wind box module (1) is open, and the air outlet (12) connected with the tower module (4) is provided with a grille; the wind box is internally provided with a pitot tube anemometer (9) and a second dry and wet bulb thermometer (8); the tower module (4) is internally provided with: The filler module (7) is installed at the communication port position of the wind box module (1) and the tower module (4); The water collecting basin (6) is located below the filler module (7) and is used for collecting the cooling water flowing down from the filler module (7); The water distribution module (2) is located above the filler module (7) and comprises a water distribution basin and a spray head (22); The fan module (5) is located above the side edge of the filler module (7) and comprises a wind cylinder (51), a fan (52) and a permanent magnet synchronous motor (53); the wind cylinder (51) is internally provided with a first dry and wet bulb thermometer (3).

2. A cross flow cooling tower packing test device according to claim 1, wherein One end of the water collecting basin (6) is located below the filler module (7), and the other end is located below the fan module (5).

3. A cross flow cooling tower packing test device according to claim 2, characterised in that, The area of the water collecting basin (6) covers the lower end surface of the filler module (7) and the lower part of the fan module (5).

4. A cross flow cooling tower packing test device according to claim 1, wherein The wind cylinder (51) module is located inside the tower module (4) and is connected to the outside at the upper end; the wind cylinder (51) module is staggered with the filler module (7) in the horizontal plane.

5. A cross flow cooling tower packing test device according to claim 1, wherein The second dry and wet bulb thermometer (8) is located above the fan (52).

6. A cross flow cooling tower packing test device according to claim 1, wherein The shell of the wind box module (1) and the tower module (4) is composed of a support and a surrounding plate (10) covering the support.

7. A cross flow cooling tower packing test device according to claim 1, wherein The tower module (4) is provided with a hoisting machine above for replacing the water distribution module (2) or the fan module (5).

8. A cross flow cooling tower packing test device according to claim 1, wherein The water distribution basin is provided with an observation window (21) at the side edge.

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