Condensation adsorption device for drying a weighing detection apparatus

Abstract

The utility model relates to drying weighing equipment technical field, concretely relates to a kind of condensation adsorption device for drying weighing detection equipment.The condensing component of the device is laid in the air outlet of drying cabin, and condensing component includes heat exchange container, exhaust pipe is provided in heat exchange container, the air inlet end of exhaust pipe is connected with the air outlet of drying cabin, and the air outlet end of exhaust pipe is provided with first branch pipe and second branch pipe;Condensing component is configured to pass into circulating coolant in heat exchange container, utilize circulating coolant and the heat exchange of gas in exhaust pipe, so that water vapor in gas condenses to form water drop;Water-collecting container is lower than the air outlet end of exhaust pipe layout, for collecting the water drop of the outflow in exhaust pipe;Adsorption box is configured to use activated carbon to adsorb volatile organic compounds in exhaust pipe.The condensation adsorption device for drying weighing detection equipment reduces the moisture content in exhaust gas, improves the adsorption effect of volatile organic compounds.

Description

Technical Field

[0001] This utility model relates to the field of drying and weighing equipment technology, specifically to a condensation adsorption device for drying, weighing, and testing equipment. Background Technology

[0002] In the automated weighing process of samples, drying and weighing testing equipment typically utilizes a separate drying chamber to dry the samples as needed. To maintain stable humidity within the drying chamber and ensure drying efficiency, any moisture and solvents released from the material are promptly discharged through the exhaust system. Existing drying and weighing testing equipment incorporates an activated carbon adsorption box at the exhaust end of the drying chamber to adsorb volatile organic compounds in the exhaust gas, thereby ensuring that the emitted gases meet laboratory environmental emission requirements.

[0003] The activated carbon adsorption box mainly utilizes the abundant pore structure of activated carbon to adsorb volatile organic compound molecules onto the pore surface through van der Waals forces. However, in actual use, the gas discharged from the exhaust vent of the drying chamber contains a large amount of water vapor. As a result, the pore sites in the activated carbon are easily occupied by water molecules, making the activated carbon damp and thus greatly reducing its adsorption effect on volatile organic compounds. Summary of the Invention

[0004] The purpose of this invention is to provide an exhaust treatment device for drying weighing and testing equipment during the drying process, so as to reduce the moisture content in the exhaust gas and improve the adsorption effect on volatile organic compounds.

[0005] To achieve the above objectives, this utility model proposes a condensation adsorption device for a drying weighing and testing equipment, comprising an adsorption box installed on the top of the drying chamber, as well as a condensation component and a water collection container.

[0006] The condensation assembly is located at the exhaust vent of the drying chamber. The condensation assembly includes a heat exchange container, and an exhaust pipe is provided inside the heat exchange container. The air inlet of the exhaust pipe is connected to the exhaust vent of the drying chamber, and the air outlet of the exhaust pipe is provided with a first branch pipe and a second branch pipe.

[0007] The condensation assembly is configured to condense water vapor in the gas into water droplets by circulating coolant into the heat exchange container and exchanging heat between the circulating coolant and the gas in the exhaust pipe.

[0008] The water collection container is positioned below the exhaust end of the exhaust pipe to collect water droplets flowing out of the exhaust pipe. The collection port of the water collection container is connected to the first branch pipe.

[0009] The air inlet of the adsorption box is connected to the second branch pipe, and the adsorption box is configured to use activated carbon to adsorb volatile organic compounds discharged from the exhaust pipe.

[0010] The condensation adsorption device used in the drying weighing and testing equipment cools the high-temperature gas discharged from the drying chamber through a heat exchange container, causing water vapor to condense into droplets. Then, gravity guides the droplets through the first branch pipe into a water collection container to achieve gas-liquid separation. Finally, the gas after gas-liquid separation is introduced into the adsorption box through the second branch pipe, where activated carbon adsorption removes volatile organic compounds from the gas, ensuring the cleanliness of the discharged gas.

[0011] Preferably, the top of the heat exchange container is provided with an outlet for discharging circulating coolant, and the bottom of the heat exchange container is provided with an inlet for introducing circulating coolant.

[0012] Preferably, a chiller is installed on one side of the drying chamber, with the inlet connected to the outlet of the chiller via a pipeline, and the outlet connected to the inlet of the chiller via a pipeline.

[0013] Preferably, the exhaust pipe is arranged in a serpentine coil inside the heat exchange container.

[0014] Preferably, the exhaust pipe is provided with a three-way connector at the outlet end, and the exhaust pipe is connected to the first branch pipe and the second branch pipe respectively through the three-way connector.

[0015] Preferably, the water collection container has a sealed cavity inside, which is connected to the first branch pipe.

[0016] Preferably, the condensation unit is installed on the outer wall of the drying chamber.

[0017] Preferably, the heat exchange container has an insulation layer on its outer wall.

[0018] Compared with the prior art, the condensation adsorption device for drying and weighing testing equipment provided by this utility model has the following substantial features and advancements: The condensation adsorption device for drying and weighing testing equipment is equipped with a condensation component at the exhaust vent of the drying chamber. Utilizing a heat exchange container and exhaust pipe, heat exchange is performed between the circulating coolant and the high-temperature gas, rapidly condensing the water vapor in the exhaust gas into water droplets. These droplets are then guided by gravity through the first branch pipe into a water collection container, achieving gas-liquid separation. This significantly reduces the moisture content in the exhaust gas, avoiding the interference of water vapor on the adsorption of volatile organic compounds by activated carbon, and improving the adsorption effect of the adsorption box on volatile organic compounds. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a condensation adsorption device for a drying weighing and testing equipment according to an embodiment of this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the condenser assembly in an embodiment of this utility model.

[0021] Figure 3 This is a reference diagram showing the usage status of a condensation adsorption device for a drying, weighing, and testing equipment according to an embodiment of this utility model.

[0022] Reference numerals: 1. Drying chamber; 2. Adsorption box; 3. Condensation assembly; 4. Water collection container; 5. Exhaust vent; 31. Heat exchange container; 32. Exhaust pipe; 33. First branch pipe; 34. Second branch pipe; 35. Liquid outlet; 36. Liquid inlet. Detailed Implementation

[0023] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] This invention proposes a condensation adsorption device for a drying weighing and testing equipment, which aims to reduce the moisture content in the exhaust gas and improve the adsorption effect on volatile organic compounds during the drying process of the equipment.

[0025] The condensation adsorption device for drying and weighing testing equipment proposed in this embodiment of the invention cools the high-temperature gas discharged from the drying chamber through a heat exchange container, causing water vapor to condense into droplets. Then, gravity guides the droplets through the first branch pipe into a water collection container, achieving gas-liquid separation and significantly reducing the moisture content in the exhaust gas. This avoids the interference of water vapor on the adsorption of volatile organic compounds by activated carbon. Finally, the gas after gas-liquid separation is introduced into the adsorption box through the second branch pipe, where activated carbon adsorbs and removes volatile organic compounds from the gas, improving the adsorption effect of the adsorption box on volatile organic compounds.

[0026] like Figure 1 As shown, a condensation adsorption device for a drying weighing and testing equipment includes an adsorption box 2 installed on the top of the drying chamber 1, a condensation component 3, and a water collection container 4.

[0027] like Figure 1 and Figure 2 As shown, the condenser assembly 3 is located at the exhaust vent 5 of the drying chamber 1. The condenser assembly 3 includes a heat exchange container 31, and an exhaust pipe 32 is installed inside the heat exchange container 31. The air inlet end of the exhaust pipe 32 is connected to the exhaust vent 5 of the drying chamber 1. The air outlet end of the exhaust pipe 32 is provided with a first branch pipe 33 and a second branch pipe 34.

[0028] The condenser assembly 3 is configured to condense water vapor in the gas in the exhaust pipe 32 by circulating coolant into the heat exchange container 31 and exchanging heat with the gas in the exhaust pipe 32.

[0029] like Figure 1 As shown, the water collection container 4 is positioned below the exhaust end of the exhaust pipe 32 to collect water droplets flowing out of the exhaust pipe 32. The collection port of the water collection container 4 is connected to the first branch pipe 33.

[0030] like Figure 1 As shown, the air inlet of the adsorption box 2 is connected to the second branch pipe 34, and the adsorption box 2 is configured to adsorb volatile organic compounds discharged from the exhaust pipe 32 using activated carbon.

[0031] like Figure 2 As shown, the top of the heat exchange container 31 is provided with an outlet 35 for discharging circulating coolant. The bottom of the heat exchange container 31 is provided with an inlet 36 for introducing circulating coolant. A chiller is provided on one side of the drying chamber 1. The inlet 36 is connected to the outlet of the chiller via a pipe, and the outlet 35 is connected to the inlet of the chiller via a pipe. Figure 2 The chiller equipment and connecting pipelines mentioned above are not shown in the diagram.

[0032] For example, the heat exchange container 31 is a square box made of stainless steel, with a 50mm diameter liquid outlet 35 located at the center of its top and a 50mm diameter liquid inlet 36 located at the bottom corners. A 3kW chiller is installed on the right side of the drying chamber 1. The liquid inlet 36 is connected to the chiller's outlet via an insulated PVC pipe, while the outlet 35 is connected to the chiller's inlet via a pipe of the same specification, forming a circulating coolant path. The chiller controls the coolant temperature between 5℃ and 10℃ to ensure efficient condensation.

[0033] To further improve the condensation effect of condensation component 3 on water vapor in the exhaust air, such as Figure 2 As shown, the exhaust pipe 32 is arranged in a serpentine coil within the heat exchange container 31. This effectively increases the contact area and contact time between the exhaust pipe 32 and the circulating coolant, thereby further improving the condensation effect.

[0034] The air inlet of the exhaust pipe 32 is sealed to the air outlet 5 at the top of the drying chamber 1 via a flange. The outlet is equipped with a three-way connecting pipe, which is connected to the first branch pipe 33 and the second branch pipe 34 respectively. The first branch pipe 33 is a transparent PVC pipe with the same diameter as the exhaust pipe 32. It extends downward at an angle and is connected to the water collection container 4, which is 30cm below the outlet of the exhaust pipe 32.

[0035] The design, with the same pipe diameter as the exhaust pipe 32 and extending downwards at an angle, fully utilizes gravity to create an efficient drainage channel. The same pipe diameter ensures that the condensate will not experience eddies or resistance due to sudden changes in pipe diameter during flow, while the downward angle further enhances the gravity-driven flow effect, allowing the condensate to flow quickly and smoothly into the water collection container 4.

[0036] To further enhance the water-gas separation effect of the condensation component 3, a sealed cavity is provided inside the water collection container 4, which is connected to the first branch pipe 33. Thus, the sealing pressure within the sealed cavity forms a dynamic balance with the exhaust pressure of the drying chamber 1 and the air inlet resistance of the adsorption box 2. For example, when the air inlet resistance of the adsorption box 2 increases due to activated carbon adsorption saturation, the sealing pressure can push the gas preferentially through the second branch pipe 34 into the adsorption box 2, preventing gas from accumulating in the exhaust pipe 32 and maintaining a stable water-gas separation efficiency, which is particularly suitable for continuous drying operations.

[0037] During the operation of the drying equipment, the circulating coolant absorbs heat from the high-temperature gas in the exhaust pipe 32 within the heat exchange container 31. If the outer wall of the container lacks insulation, the heat absorbed by the coolant will quickly dissipate to the outside, causing the chiller to consume more electrical energy to maintain the coolant's low temperature. By installing an insulation layer on the outer wall of the heat exchange container 31, the chiller's energy consumption can be reduced by 25%-30%. For example, the insulation layer can be a polyurethane insulation layer.

[0038] like Figure 1 As shown, the condenser assembly 3 is installed on the outer wall of the drying chamber 1. This facilitates daily inspection, maintenance, and troubleshooting by operators. It also allows operators to easily upgrade existing drying and weighing testing equipment.

[0039] In addition, when making simple upgrades to existing drying and weighing testing equipment, the condensing component 3 in the condensing adsorption device for drying and weighing testing equipment proposed in this embodiment can be replaced by a simple condensing tube.

[0040] When using the condensation adsorption device for drying and weighing testing equipment proposed in this embodiment of the utility model, such as... Figure 3 As shown, the high-temperature gas discharged from the drying chamber 1 is cooled by the heat exchange container 31, causing water vapor to condense into droplets; then, the droplets are guided into the water collection container 4 by gravity through the first branch pipe 33 to achieve gas-liquid separation; finally, the gas after gas-liquid separation is introduced into the adsorption box 2 through the second branch pipe 34, where volatile organic compounds in the gas are removed by activated carbon adsorption to ensure the cleanliness of the discharged gas.

[0041] This utility model is not limited to the specific technical solutions described in the above embodiments. Besides the above embodiments, this utility model may have other implementation methods. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A condensation adsorption device for a drying weighing and testing equipment, comprising an adsorption box (2) disposed on the top of a drying chamber (1), characterized in that, It also includes a condensation assembly (3) and a water collection container (4); The condensing assembly (3) is located at the exhaust port (5) of the drying chamber (1). The condensing assembly (3) includes a heat exchange container (31), and an exhaust pipe (32) is provided inside the heat exchange container (31). The air inlet of the exhaust pipe (32) is connected to the exhaust port (5) of the drying chamber (1). The air outlet of the exhaust pipe (32) is provided with a first branch pipe (33) and a second branch pipe (34). The condensation assembly (3) is configured to condense water vapor in the gas into water droplets by circulating coolant into the heat exchange container (31) and exchanging heat between the circulating coolant and the gas in the exhaust pipe (32). The water collection container (4) is installed below the exhaust end of the exhaust pipe (32) to collect water droplets flowing out of the exhaust pipe (32). The collection port of the water collection container (4) is connected to the first branch pipe (33). The air inlet of the adsorption box (2) is connected to the second branch pipe (34), and the adsorption box (2) is configured to adsorb volatile organic compounds discharged from the exhaust pipe (32) using activated carbon.

2. The condensation adsorption device for drying and weighing testing equipment according to claim 1, characterized in that, The heat exchange container (31) is provided with an outlet (35) for discharging circulating coolant at the top and an inlet (36) for introducing circulating coolant at the bottom.

3. The condensation adsorption device for drying and weighing testing equipment according to claim 2, characterized in that, A chiller is installed on one side of the drying chamber (1). The inlet (36) is connected to the outlet of the chiller through a pipeline, and the outlet (35) is connected to the inlet of the chiller through a pipeline.

4. The condensation adsorption device for drying and weighing testing equipment according to claim 1, characterized in that, The exhaust pipe (32) is arranged in a serpentine coil inside the heat exchange container (31).

5. The condensation adsorption device for drying and weighing testing equipment according to claim 1, characterized in that, The exhaust pipe (32) is provided with a three-way connecting pipe at the outlet end, and the exhaust pipe (32) is connected to the first branch pipe (33) and the second branch pipe (34) respectively through the three-way connecting pipe.

6. The condensation adsorption device for drying and weighing testing equipment according to claim 1, characterized in that, The water collection container (4) has a sealed cavity inside, which is connected to the first branch pipe (33).

7. The condensation adsorption device for drying and weighing testing equipment according to claim 1, characterized in that, The condensation assembly (3) is installed on the outer wall of the drying chamber (1).

8. The condensation adsorption device for drying and weighing testing equipment according to claim 1, characterized in that, The heat exchange container (31) has an insulation layer on its outer wall.

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