A testing device for the heat exchange performance of a fog elimination module

Abstract

The present invention provides a device for testing the heat exchange performance of a demisting module, which includes a humid and hot channel assembly and a cooling channel assembly. The humid and hot channel assembly includes an experimental pipeline. There are multiple sections of the experimental pipeline, and the ends of the experimental pipeline are connected to each other in a way of splicing with angle iron flanges. The experimental pipeline is connected to a wind and heat device. The cooling channel assembly includes cold source pipelines arranged on both sides of the experimental pipeline and cooling fans installed on the cold source pipelines. The cold source pipelines are also connected to the experimental pipeline in a way of splicing with angle iron flanges. The wind and heat device can inject humid and hot gas into the experimental pipeline, and the cooling fans can inject ambient cold air into the cold source pipelines. The humid and hot gas in the experimental pipeline meets the ambient cold air, forming fog for testing the demisting module. By injecting humid and hot gas and ambient cold air into the experimental pipeline, fog for testing the demisting module is formed, that is, the demisting module is tested outside the cooling tower, which can avoid damaging the cooling tower.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers, and in particular to a heat exchange performance testing device for a mist elimination module. Background Art

[0002] When the cooled gas is ejected from the condensation tower, its own temperature is higher than the atmospheric temperature, and the gas carries a large amount of condensed water to form supersaturated gas. When the supersaturated gas enters the space outside the tower where the ambient temperature is too low, the overheated saturated gas encounters cold liquid and precipitates, forming a large amount of condensed mist at the tower mouth. The condensed mist will cause mist erosion to the tower mouth components of the cooling tower. Therefore, a demisting module needs to be installed at the tower mouth of the cooling tower. The mist at the tower mouth of the cooling tower can be eliminated by spraying condensed water, heating or adsorption. Therefore, the performance of the demisting module is extremely important for the cooling tower. In order to ensure the service life of the cooling tower, the demisting module needs to be performance tested in the cooling tower. The process of testing the demisting module in the cooling tower will cause damage to the cooling tower. Therefore, a device that can test the demisting module outside the cooling tower is urgently needed in the production process. Summary of the invention

[0003] The technical problem to be solved by the present invention is that testing a mist elimination module in a cooling tower may cause damage to the cooling tower.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a demisting module heat exchange performance test device, including a wet heat channel component and a cooling channel component, the wet heat channel component includes an experimental pipeline, the experimental pipeline has multiple sections, the ends of the experimental pipeline are interconnected by angle iron flange splicing, the experimental pipeline is connected to a wind heating device, the cooling channel component includes cold source pipelines arranged on both sides of the experimental pipeline and a cooling fan installed on the cold source pipeline, the cold source pipeline is also connected to the experimental pipeline by angle iron flange splicing, the wind heating device can inject wet heat gas into the experimental pipeline, the cooling fan can inject ambient cold air into the cold source pipeline, the wet heat gas in the experimental pipeline and the ambient cold air meet to form fog for testing the demisting module.

[0005] Furthermore, the wet heat channel assembly also includes a wet heat air inlet duct and a wet heat air outlet duct arranged at both ends of the experimental pipeline, and the wet heat air inlet duct is also connected to the wind heating device.

[0006] Furthermore, the hot and humid air inlet duct and the hot and humid air outlet duct are both provided with a trapezoidal channel, and the trapezoidal channel is connected to the experimental duct.

[0007] Furthermore, the experimental pipeline includes a hot channel frame and an insulation board installed on the hot channel frame, and the insulation board is attached to the hot channel frame to form a square insulated pipeline.

[0008] Furthermore, the cold source pipe includes a cold channel frame detachably mounted on the hot channel frame and a partition covering the cold channel frame, and the partition is fixed around the cold channel frame to form a square pipe, and the square pipe is connected to the experimental pipe.

[0009] Furthermore, a thermal observation port is provided on the experimental pipeline, and organic glass is arranged inside the thermal observation port.

[0010] Furthermore, a cold observation port is opened on the cold source pipeline, and the cold observation port is covered with organic glass.

[0011] The beneficial effect of the present invention is that a cross-shaped cold source pipe and an experimental pipe are arranged, and mist is produced in the experimental pipe by injecting hot and humid gas and ambient cold air into the experimental pipe. The performance of the demisting module can be tested by the mist, and the concentration of the mist can be adjusted by changing the power of the wind heating device and the cooling fan. This can meet the simulation of various working conditions and test the demisting module under various usage environments, thereby avoiding testing the demisting module on a cooling tower and avoiding damage to the cooling tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 is a top view of the heat exchange performance testing device of the mist elimination module of the present invention;

[0014] Figure 2 yes Figure 1 Main view of the experimental pipeline in the middle;

[0015] In the figure: heat exchange performance test device of demisting module -100, wet and hot channel component -10, cooling channel component -20, wet and hot air inlet duct -110, experimental duct -120, wet and hot air outlet duct -130, trapezoidal channel -140, hot channel frame -121, insulation board -122, observation port -123, angle iron -124, cold source duct -210, cold source fan -220, cold channel frame -211, partition -212, cold observation port -213. DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limitations of the present invention. On the contrary, embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0017] like Figure 1 and Figure 2 As shown, the present invention provides a demisting module heat exchange performance testing device 100, including a wet heat channel assembly 10 and a cooling channel assembly 20 installed on the wet heat channel assembly 10.

[0018] The wet heat channel assembly 10 includes a wet heat air inlet duct 110, an experimental duct 120 installed on the wet heat air inlet duct 110, and a wet heat air outlet duct 130 installed on the experimental duct 120. The wet heat air inlet duct 110 is a square frame structure, and the wet heat air inlet duct 110 is connected to the wind heating device. The wind heating device can inject superheated steam or other wet heat gas into the experimental duct 120 through the wet heat air inlet duct 110. The wet heat gas can be discharged from the wet heat air outlet duct 130 after use. Preferably, the wet heat air inlet duct 110 and the wet heat air outlet duct 130 are both provided with a trapezoidal channel 140, and the wet heat air inlet duct 110 and the wet heat air outlet duct 130 are both connected through the trapezoidal channel 140. When the humid hot gas reaches the experimental pipeline 120, the pipeline pressure gradually decreases when passing through the trapezoidal channel 140 on the humid hot air inlet pipeline 110, and the humid hot gas slowly enters the experimental pipeline 120 in the form of diffusion, and the humid hot gas is evenly distributed in the experimental pipeline 120. Under the continuous push of the wind heating device, the humid hot gas is collected through the trapezoidal channel 140 on the humid hot air outlet pipeline 130, and its own pipeline pressure is gradually increased, and it passes through the humid hot air outlet pipeline 130 at a faster speed to complete the recovery of the humid hot gas.

[0019] The experimental pipeline 120 is a square frame structure with multiple sections spliced ​​together. Each section of the experimental pipeline 120 includes a hot channel frame 121 and a heat insulation board 122 covering the hot channel frame 121. The heat insulation board 122 is attached to the hot channel frame 121 to form a sealed square heat insulation channel. Preferably, a heat observation port 123 is also provided on the heat insulation board 122. The heat observation port 123 is a notch opened on the heat insulation board 122, and the heat observation port 123 is covered with organic glass, that is, through the organic glass of the heat observation port 123, the elimination of fog in the experimental pipeline 120 can be observed. Preferably, the port of each section of the experimental pipeline 120 is wrapped with an angle iron 124, and two adjacent experimental pipelines 120 are flange-jointed in position through the angle iron 124, and the number of sections of the experimental pipeline 120 can be determined according to the cooling time of the humid hot gas, that is, the more sections of the experimental pipeline 120, the longer the cooling time of the humid hot gas, so that it can adapt to various working conditions.

[0020] The cooling channel assembly 20 includes cold source pipes 210 disposed on both sides of the experimental pipe 120 and cold source fans 220 disposed on the cold source pipes 210 .

[0021] The cold source pipe 210 is a square frame structure corresponding to the experimental pipe 120. The cold source pipe 210 has at least two sections. The cold source pipe 210 is arranged on both sides of a certain section of the experimental pipe 120. The cold source pipe 210 is also connected to the flange of the experimental pipe 120 by angle iron and the like. The cooling fan 220 is arranged at the end of the cooling pipe 210 away from the experimental pipe 120. After the cooling fan 220 is turned on, the corresponding ambient cold air can be injected into the experimental pipe 120 through the cooling pipe 210. When the ambient cold air and the humid hot air are mixed, the humid hot air is instantly condensed into mist in the experimental pipe 120. Preferably, the cooling pipe 210 includes a cold channel frame 211 and a partition 212 covering the cold channel frame 211. The end of the cold channel frame 211 is vertically fixed to the hot channel frame 121 of the experimental pipe 120. The partition 212 is fixed to the cold channel frame 211 around the cold channel frame 211, thereby forming a square pipe connected to the hot channel frame 121. A cold observation port 213 is provided on the cold channel frame 211 , and the cold observation port 213 is also covered with organic glass, through which the elimination of fog in the cooling pipe 210 can be observed.

[0022] After the cold source pipe 210 and the experimental pipe 120 are spliced ​​into a cross structure, the demisting module is installed in the experimental pipe 120, and the ambient cold air and humid hot gas are respectively introduced into the cold source pipe 210 and the experimental pipe 120. After the ambient cold air and the humid hot gas meet, fog is formed in the experimental pipe 120. In order to control the concentration and temperature of the fog, it is necessary to control the flow rate and temperature of the humid hot gas in the wind heating device so that the fog in the experimental pipe 120 can be controlled, thereby simulating different working conditions faced by different demisting modules. After that, the demisting module can be started to eliminate the fog in the experimental pipe 120, thereby testing the performance of the demisting module.

[0023] The method of using the above-mentioned defogging module heat exchange performance test device 100 is to select a corresponding number of experimental pipes 120 according to the working conditions to be simulated, integrate multiple sections of the experimental pipes 120 into a whole section by splicing angle steel flanges, install the defogging module in the experimental pipe 120, and install the wet heat inlet pipe 110 and the wet heat outlet pipe 130 at both ends of the experimental pipe 120 by flange splicing, and install the cold source pipe 210 to both sides of the experimental pipe 120 according to the working conditions to be simulated, then start the cold source fan 220 and the wind heat device, and the cold and hot gases meet in the experimental pipe 120 to produce the required fog. When the fog reaches the set concentration, start the defogging module to test the performance of the defogging module. After the test process is completed, remove the cold source pipe 210, the wet heat inlet pipe 110, the wet heat outlet pipe 120 and the defogging module from the experimental pipe 120 in turn, and finally split the experimental pipe 120 for storage.

[0024] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A heat transfer performance testing device for a fog elimination module, characterized in that: It includes a humid and hot channel component and a cooling channel component. The humid and hot channel component includes an experimental pipeline. The experimental pipeline has multiple sections, and the ends of the experimental pipeline are connected to each other by means of angle iron flange splicing. The experimental pipeline is connected to a wind-heat device. The cooling channel component includes cold source pipelines arranged on both sides of the experimental pipeline and cooling fans installed on the cold source pipelines. The cold source pipelines are also connected to the experimental pipeline by means of angle iron flange splicing. The wind-heat device can inject humid and hot gas into the experimental pipeline, and the cooling fans can inject ambient cold air into the cold source pipelines. The humid and hot gas and the ambient cold air in the experimental pipeline meet to form fog for testing the fog elimination module. The humid and hot channel component also includes humid and hot air inlet pipelines and humid and hot air outlet pipelines arranged at both ends of the experimental pipeline. The humid and hot air inlet pipeline is also connected to the wind-heat device. Trapezoidal channels are provided on both the humid and hot air inlet pipeline and the humid and hot air outlet pipeline. The humid and hot air inlet pipeline and the humid and hot air outlet pipeline are both connected to the experimental pipeline through the trapezoidal channels. When the humid and hot gas passes through the trapezoidal channel on the humid and hot air inlet pipeline, the pipeline pressure gradually decreases, and the humid and hot gas slowly enters the experimental pipeline in a diffused form; Angle iron is wrapped on the port of each section of the experimental pipeline, and two adjacent experimental pipelines are butt-jointed by flanges through the angle iron. The number of sections of the experimental pipeline is determined according to the cooling time of the humid and hot gas.

2. A heat transfer performance testing device for a fog elimination module according to claim 1, characterized in that: The experimental pipeline includes a heat channel frame and a heat insulation board installed on the heat channel frame. After the heat insulation board fits to the heat channel frame, a square heat insulation pipeline is formed.

3. A heat transfer performance testing device for a fog elimination module according to claim 2, characterized in that: The cold source pipeline includes a cold channel frame detachably installed on the heat channel frame and a partition covering the cold channel frame. After the partition is fixedly fitted around the cold channel frame, a square pipeline is formed, and the square pipeline is connected to the experimental pipeline.

4. A heat transfer performance testing device for a fog elimination module according to claim 1, characterized in that: A heat observation port is opened on the experimental pipeline, and plexiglass is arranged in the heat observation port.

5. A heat transfer performance testing device for a fog elimination module according to claim 1, characterized in that: A cold observation port is opened on the cold source pipeline, and plexiglass is covered on the cold observation port.

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