Condensation and collection device for exhaust gas of laboratory

Abstract

The invention discloses a condensation and collection device for laboratory exhaust waste gas, which relates to the technical field of laboratory engineering, comprises a shell connected with an exhaust tail end, and is characterized in that a condensation pipe is arranged in the shell, and the input end of the condensation pipe penetrates through the bottom end of the inner wall of one side of the input end of the shell and extends out of the bottom end of the shell; the output end of the condensation pipe faces downwards, a liquid outlet is formed in the position, close to the output end of the condensation pipe, of the bottom end of the inner wall of the shell and located between the input end and the output end of the condensation pipe, a collecting box communicated with the liquid outlet is installed at the bottom end of the shell, and a liquid discharging valve is installed at the bottom end of the collecting box in a communicated mode. By means of the design of the condensation pipe, cold air is sucked into the air pipe in a negative pressure mode and exchanges heat with high-temperature waste gas, harmful substances are effectively condensed into waste liquid particles, waste liquid is guided into the collection box to be stored through the inclined design of the shell, and the laboratory waste gas is efficiently treated; environmental pollution is reduced, and personnel safety is guaranteed.

Description

Technical Field

[0001] The invention patent relates to the field of laboratory engineering technology, specifically a device for collecting condensation of laboratory exhaust gas. Background Art

[0002] In the laboratory, there is usually a large amount of high-temperature experimental exhaust gas, which is discharged through the air duct. When passing through the air duct, the exhaust gas condenses. As time goes by, more and more condensate is generated, and the condensate seeps out along the air duct flange interface or other joints. The seeped condensate is highly corrosive and will cause chemical corrosion to the personnel and instruments under the air duct. In order to ensure the safety of experimental personnel and equipment, the current solution on the market is to install a liquid collector at the exhaust end and make the air duct a certain slope, but the air duct is connected in sections, and there are gaps in the air duct at the connection, which will also pose certain risks.

[0003] Invention patent content

[0004] The purpose of this patent is to provide a laboratory exhaust gas condensation collection device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the patent of the present invention provides the following technical solutions: a device for collecting condensation of laboratory exhaust gas, comprising a condenser arranged in the shell, the input end of the condenser passes through the bottom end of the inner wall on one side of the shell input end and extends out of the bottom end of the shell, the output end of the condenser faces downward and is close to the output end of the condenser, a drain port is arranged at the bottom end of the inner wall of the shell between the input end and the output end of the condenser, a collecting box connected to the drain port is installed at the bottom end of the shell, a drain valve is installed at the bottom end of the collecting box, and the bottom end of the inner wall of the shell is inclined downward from the inner wall of the shell to the drain port.

[0006] Furthermore, the output end of the condenser faces the output end of the outer shell, and also includes a turbofan assembly, the turbofan assembly including a cross mounting frame installed at the output end of the condenser, an outer frame fixedly connected to the cross mounting frame near the output end of the outer shell, a first turbofan arranged in the outer frame, a second turbofan arranged in the output end of the condenser and a connecting shaft, one end of the connecting shaft is transmission-connected to the first turbofan, the other end of the connecting shaft passes through the cross mounting frame and is transmission-connected to the second turbofan, the connecting shaft and the cross mounting frame are rotationally connected, the inner diameter of the outer frame is greater than the outer diameter of the first turbofan, the inner diameter of the condenser is greater than the outer diameter of the second turbofan.

[0007] Furthermore, four connecting plates are arranged at equal intervals along the circumferential direction on the outer wall at the output end of the condenser, and the four connecting plates are respectively integrated with four mounting frames of the cross mounting frame, and the connecting plates are connected to the outer wall of the condenser by screws.

[0008] Furthermore, the condenser tube in the shell is spiral-shaped, and the output end of the condenser tube is located at the center of the spiral.

[0009] Furthermore, the condenser is a corrugated tube.

[0010] Furthermore, a filter screen is installed at the input end of the condenser.

[0011] Furthermore, a liquid level observation port is provided on the side wall of the collection box.

[0012] Furthermore, a liquid level sensor is installed on the upper part of the inner wall of the collection box, and a liquid level alarm connected to the liquid level sensor through a wiring harness is installed on the side wall of the collection box.

[0013] The beneficial effects achieved by the present invention are:

[0014] 1. Through the design of the condenser, the negative pressure in the air duct is used to inhale cold air, and heat is exchanged with the high-temperature exhaust gas through the condenser wall, effectively condensing the harmful substances in the exhaust gas to form waste liquid particles, and the waste liquid is drained by the inclined setting at the bottom of the inner wall of the shell, so that the waste liquid finally drips into the collection box for storage, effectively collecting and treating harmful substances in the laboratory exhaust gas, reducing pollution to the environment, and ensuring the health and safety of laboratory personnel.

[0015] 2. Through the design of the turbofan assembly, the airflow in the duct is converted into mechanical energy to generate suction, so that the cold air can enter the condenser more smoothly and fully exchange heat with the high-temperature exhaust gas, thereby efficiently condensing the harmful substances in the exhaust gas and improving the effect of laboratory exhaust gas treatment.

[0016] 3. By arranging the condenser in the outer shell in a spiral shape, the contact area between the condenser and the high-temperature exhaust gas is increased to increase the efficiency of collecting waste liquid. At the same time, the output end of the condenser is arranged at the center of the spiral, which is conducive to the turbofan assembly to capture the airflow more effectively.

[0017] 4. The setting of the condenser as a bellows is beneficial to increase the contact area between the condenser and the high-temperature exhaust gas, while increasing the efficiency of collecting waste liquid.

[0018] 5. By installing a liquid level sensor on the upper part of the inner wall of the collection box, connecting it with a wiring harness, and installing a liquid level alarm on the side wall of the collection box, intelligent monitoring of the waste liquid storage situation in the collection box can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of a laboratory exhaust gas condensation collection device in Example 1;

[0020] Figure 2A cross-sectional view of a laboratory exhaust gas condensation collection device in Example 2;

[0021] Figure 3 It is a structural schematic diagram of the state where the output end of the condenser pipe is connected to the turbofan assembly in the second embodiment;

[0022] Figure 4 It is a schematic diagram of the structure of the condenser in the second embodiment. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] like Figure 1 As shown, embodiment 1 discloses a condensation collection device for laboratory exhaust gas, comprising: a shell 1 connected to the exhaust end, a condenser 2 is arranged in the shell 1, the input end of the condenser 2 passes through the bottom end of the inner wall on one side of the input end of the shell 1, and extends out of the bottom end of the shell 1, the output end of the condenser 2 faces downward and is close to the output end of the condenser 2, a drain port 11 is arranged at the bottom end of the inner wall of the shell 1 between the input end and the output end of the condenser 2, a collecting box 3 connected to the drain port 11 is installed at the bottom end of the shell 1, a drain valve 31 is installed at the bottom end of the collecting box 3, and the bottom end of the inner wall of the shell 1 is inclined downward from the inner wall of the shell 1 to the drain port 11.

[0026] Based on the above structure, Figure 1 As shown, in the process that the air flow in the air duct flows from the input end of the shell 1 to the output end of the shell 1, the output end of the condenser 2 draws the cold air in the laboratory into the condenser 2 through the negative pressure in the air duct, and is discharged from the output end of the condenser 2 and discharged with the air flow in the air duct. When the cold air passes through the condenser 2, it exchanges heat with the high-temperature exhaust gas in the shell 1 through the tube wall of the condenser 2, so that the high-temperature exhaust gas condenses to form waste liquid particles, and finally condenses into waste liquid on the outer wall of the condenser 2. The waste liquid flows downward along the outer wall of the condenser, and finally drips to the bottom end of the inner wall of the shell 1. Thereafter, the waste liquid flows into the collection box 3 through the liquid distribution port along the bottom end of the inner wall of the shell 1. When there is a lot of waste liquid stored in the collection box 3, the waste liquid can be transferred to the waste liquid barrel for treatment by opening the liquid release valve 31.

[0027] Embodiment 2

[0028] like Figure 2As shown, the technical feature that distinguishes the second embodiment from the first embodiment is that the output end of the condenser 2 faces the output end of the housing 1, and further includes a turbofan assembly 4, which includes a cross mounting frame 41 mounted at the output end of the condenser 2, an outer frame 42 fixedly connected to the cross mounting frame 41 near the output end of the housing 1, a first turbofan 43 arranged in the outer frame 42, a second turbofan 44 arranged in the output end of the condenser 2, and a connecting shaft 45, one end of the connecting shaft 45 is drivingly connected to the first turbofan 43, the other end of the connecting shaft 45 passes through the cross mounting frame 41, and is drivingly connected to the second turbofan 44, the connecting shaft 45 is rotationally connected to the cross mounting frame 41, the inner diameter of the outer frame 42>the outer diameter of the first turbofan 43>the inner diameter of the condenser 2>the outer diameter of the second turbofan 44;

[0029] In the process of the air flow in the air duct flowing from the input end of the shell 1 to the output end of the shell 1, the first turbofan 43 in the shell 1 converts the flow of air into mechanical energy, thereby realizing the first turbofan 43. The first turbofan 43 drives the second turbofan 44 to rotate through the connecting shaft 45. The second turbofan 44 generates suction, and cooperates with the negative pressure in the air duct to suck the cold air in the laboratory into the condenser 2.

[0030] Further, such as Figure 3 As shown, in order to facilitate the maintenance or replacement of the turbofan assembly, four connecting plates 46 are arranged at equal intervals along the circumferential direction on the outer wall at the output end of the condenser 2. The four connecting plates 46 are respectively integrated with the four mounting frames of the cross mounting frame 41. The connecting plates 46 are connected to the outer wall of the condenser 2 by screws. When replacement is required, the screws are released from the outer wall of the condenser 2, and the turbofan assembly is taken out for maintenance or replacement.

[0031] Further, such as Figure 4 As shown, in order to increase the contact area between the condenser and the high-temperature exhaust gas and increase the efficiency of collecting waste liquid, the condenser 2 in the outer casing 1 is spiral. At the same time, in order to facilitate the turbofan assembly to capture the airflow more effectively, the output end of the condenser 2 is located at the center of the spiral.

[0032] Furthermore, in order to further increase the contact area between the condenser and the high-temperature exhaust gas and at the same time increase the efficiency of collecting waste liquid, the condenser 2 is a corrugated tube (not shown in the figure).

[0033] Furthermore, in order to prevent pollutants or impurities contained in the air in the laboratory from entering the condenser, a filter (not shown in the figure) is installed at the input end of the condenser 2.

[0034] Further, such as Figure 1-2 As shown, in order to facilitate the staff to observe the waste liquid storage situation in the collection box so as to transfer the waste liquid in time, a liquid level observation port 32 is provided on the side wall of the collection box 3, and the staff observes the waste liquid storage situation in the collection box 3 through the observation port 32.

[0035] Further, such as Figure 1-2 As shown, in order to intelligently monitor the waste liquid storage situation in the collection box, a liquid level sensor (not shown in the figure) is installed on the upper part of the inner wall of the collection box 3, and a liquid level alarm 33 connected to the liquid level sensor through a wiring harness is installed on the side wall of the collection box 3. The liquid level alarm 33 has light and sound functions;

[0036] When the waste liquid stored in the collection box 3 is so high that it submerges the liquid level sensor, the liquid level sensor sends a signal to the liquid level alarm 33 through the wiring harness, and the liquid level alarm 33 sounds an alarm (lights up and emits a prompt sound) to remind the staff to transfer the waste liquid in the collection box 3. After the waste liquid is transferred, the liquid level alarm 33 stops the alarm.

[0037] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and invention concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A condensation collection device for laboratory exhaust gas, comprising a housing (1) connected to an exhaust terminal, characterized in that: A condenser (2) is arranged in the shell (1), the input end of the condenser (2) passes through the bottom end of the inner wall on one side of the input end of the shell (1) and extends out of the bottom end of the shell (1), the output end of the condenser (2) faces downward and is close to the output end of the condenser (2), a drain port (11) is arranged at the bottom end of the inner wall of the shell (1) between the input end and the output end of the condenser (2), a collecting box (3) connected to the drain port (11) is installed at the bottom end of the shell (1), a drain valve (31) is installed at the bottom end of the collecting box (3), and the bottom end of the inner wall of the shell (1) is arranged to be inclined downward from the inner wall of the shell (1) to the drain port (11).

2. The device for collecting condensed waste gas from laboratory exhaust according to claim 1, characterized in that: The output end of the condenser (2) faces the output end of the housing (1), and also includes a turbofan assembly (4), the turbofan assembly (4) includes a cross mounting frame (41) installed at the output end of the condenser (2), an outer frame (42) fixedly connected to the cross mounting frame (41) near the output end of the housing (1), a first turbofan (43) arranged in the outer frame (42), a second turbofan (44) arranged in the output end of the condenser (2) and a connecting shaft (45), one end of the connecting shaft (45) is drivingly connected to the first turbofan (43), the other end of the connecting shaft (45) passes through the cross mounting frame (41) and is drivingly connected to the second turbofan (44), the connecting shaft (45) is rotationally connected to the cross mounting frame (41), the inner diameter of the outer frame (42) is greater than the outer diameter of the first turbofan (43)> the inner diameter of the condenser (2)> the outer diameter of the second turbofan (44).

3. The device for collecting condensed waste gas from laboratory exhaust according to claim 2, characterized in that: Four connecting plates (46) are arranged at equal intervals along the circumferential direction on the outer wall at the output end of the condenser (2); the four connecting plates (46) are respectively integrated with the four mounting frames of the cross mounting frame (41); and the connecting plates (46) are connected to the outer wall of the condenser (2) by screws.

4. A condensation collection device for laboratory exhaust gas according to any one of claims 1 to 3, characterized in that: The condenser tube (2) in the housing (1) is spiral-shaped, and the output end of the condenser tube (2) is located at the center of the spiral.

5. The device for collecting condensed waste gas from laboratory exhaust according to claim 4, characterized in that: The condenser tube (2) is a corrugated tube.

6. The device for collecting condensed waste gas from laboratory exhaust according to claim 5, characterized in that: A filter screen is installed at the input end of the condenser tube (2).

7. The device for collecting condensed waste gas from laboratory exhaust according to claim 5, characterized in that: A liquid level observation port (32) is provided on the side wall of the collection box (3).

8. The device for collecting condensed waste gas from laboratory exhaust according to claim 5, characterized in that: A liquid level sensor is installed on the upper part of the inner wall of the collection box (3), and a liquid level alarm (33) connected to the liquid level sensor via a wiring harness is installed on the side wall of the collection box (3).

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