Air separation safety emptying device

Abstract

The utility model relates to the technical field of air separation, in particular to an air separation safety emptying device. According to the technical scheme, the device comprises an air compressor, a compressed air storage tank and a valve controller, a connecting valve is fixedly connected to the upper surface of the compressed air storage tank, a connecting bent pipe is fixedly connected to the tail end of the connecting valve, a temporary storage tank is fixedly connected to the tail end of the connecting bent pipe, and an emptying valve is fixedly connected to the lower surface of the temporary storage tank; and a sensor is fixedly mounted at the bottom of the inner wall of the temporary storage tank. According to the utility model, the corrosion fault caused by accumulated water in the emptying valve on the air compressor can be avoided, the stable and reliable operation of the emptying valve is ensured, and the potential safety hazard is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of air separation, in particular to an air separation safety venting device. Background Art

[0002] Air separation is the abbreviation of air separation, which refers to the process of separating components (oxygen, nitrogen, argon, helium and other rare gases) from air by applying the principle of low-temperature refrigeration. Generally, the air is first compressed and cooled to a very low temperature, or liquefied by expansion, and then separated in a distillation tower. The main purpose of air separation is to separate oxygen, nitrogen, argon and other gases from air or other gases to supply them to different production and application fields.

[0003] At present, the air compression step in the air separation process requires the use of an air compressor, and the vent valve installed on the air compressor can release excess air pressure to keep the gas tank pressure stable (the pressure is not too high and safety is guaranteed). Therefore, the reliable operation of the vent valve is very important for the safe operation of the air compressor. However, the closing of the vent valve may cause water accumulation in the valve due to a large temperature drop, resulting in rust and other faults in the valve body, causing the vent valve to fail to open in time, posing a safety hazard. For this reason, we propose an air separation safety venting device. Utility Model Content

[0004] The purpose of the utility model is to provide an air separation safety venting device, which has the advantages of being able to avoid rust failure caused by water accumulation inside the vent valve on the air compressor, ensuring the stable and reliable operation of the vent valve, and eliminating safety hazards. It solves the problem that the vent valve cannot be opened in time due to rust failure inside the valve body caused by water accumulation inside the vent valve on the air compressor, which poses a safety hazard.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air separation safety venting device, comprising an air compressor, a compressed air storage tank and a valve controller, wherein a connecting valve is fixedly connected to the upper surface of the compressed air storage tank, a connecting elbow is fixedly connected to the end of the connecting valve, a temporary storage tank is fixedly connected to the end of the connecting elbow, a venting valve is fixedly connected to the lower surface of the temporary storage tank, and a sensor is fixedly installed at the bottom of the inner wall of the temporary storage tank.

[0006] Preferably, the connecting valve and the vent valve are both electrically connected to a valve controller, and the valve controller controls the opening and closing of the vent valve and the connecting valve.

[0007] Preferably, the sensor is electrically connected to the valve controller, and the sensor is used to monitor whether there is water accumulation inside the temporary storage tank and transmit the monitoring signal to the valve controller.

[0008] Preferably, a vent pipe is fixedly connected to the end of the vent valve, and the moisture and gas discharged from the vent valve flow out through the vent pipe.

[0009] Preferably, a timer is fixedly mounted on the outer surface of the valve controller, and the timer periodically sends a control signal to the valve controller, so that the valve controller periodically controls the connecting valve and the vent valve to achieve the effect of periodically removing residual moisture inside the vent valve.

[0010] Preferably, the outer surface of the timer is provided with a display screen and buttons, and the timing information is entered into the timer by pressing the buttons. The timer transmits the timing opening and closing control signals of the vent valve and the connecting valve to the valve controller, and the display screen is used to display the timing opening and closing information of the vent valve and the connecting valve.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model achieves the effect of avoiding rust failure caused by water accumulation in the vent valve on the air compressor, ensuring stable and reliable operation of the vent valve, and eliminating safety hazards by arranging an air compressor, a compressed air storage tank, a connecting valve, a connecting elbow, a temporary storage tank, a sensor, a valve controller and a vent valve. After the vent valve is closed, the connecting valve is in a normally open state, and the accumulated water caused by temperature drop will accumulate in the temporary storage tank. At the same time, part of the compressed gas is also stored in the temporary storage tank. When the sensor detects that there is water in the temporary storage tank, the valve controller controls the connecting valve to close, and the vent valve to open at the same time, so that the accumulated water is discharged from the vent valve. At the same time, a small amount of compressed gas stored in the temporary storage tank also passes through the vent valve and flows out, taking away the accumulated water in the vent valve, thereby improving the water removal effect. At the same time, since the connecting valve is closed, the air pressure inside the compressed air storage tank will not be affected during the water removal process. After the water removal is completed, the valve controller controls the vent valve to close, and the connecting valve to open at the same time.

[0013] 2. The utility model achieves the effect of opening the vent valve at a fixed time and removing the residual moisture inside the vent valve by setting a timer, further avoiding the rust failure of the vent valve due to moisture. The timer sends a control signal to the valve controller at a fixed time, so that the valve controller controls the connecting valve and the vent valve at a fixed time, so as to achieve the effect of regularly removing the residual moisture inside the vent valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0016] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the partial main cross-sectional structure of the temporary storage tank of the utility model.

[0018] Figure numerals: 1. air compressor; 2. compressed air storage tank; 3. connecting elbow; 4. temporary storage tank; 5. vent pipe; 6. vent valve; 7. connecting valve; 8. display screen; 9. button; 10. timer; 11. valve controller; 12. sensor. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Embodiment 1

[0021] like Figure 1-Figure 4 As shown, an air separation safety venting device proposed by the utility model includes an air compressor 1, a compressed air storage tank 2 and a valve controller 11. The air compressor 1 compresses the air and stores it in the compressed air storage tank 2 for subsequent air separation. A connecting valve 7 is fixedly connected to the upper surface of the compressed air storage tank 2, and a connecting elbow 3 is fixedly connected to the end of the connecting valve 7. A temporary storage tank 4 is fixedly connected to the end of the connecting elbow 3. A venting valve 6 is fixedly connected to the lower surface of the temporary storage tank 4, and a venting pipe 5 is fixedly connected to the end of the venting valve 6. The connecting valve 7 and the venting valve 6 are both electrically connected to the valve controller 11. The valve controller 11 controls the opening and closing of the venting valve 6 and the connecting valve 7. A sensor 12 is fixedly installed at the bottom of the inner wall of the temporary storage tank 4. The sensor 12 is electrically connected to the valve controller 11. The sensor 12 is used to monitor whether there is water accumulation in the temporary storage tank 4 and transmit the monitoring signal to the valve controller 11.

[0022] When the utility model is in use, after the vent valve 6 is closed, the connecting valve 7 is in a normally open state, and the accumulated water caused by the temperature drop will accumulate inside the temporary storage tank 4. At the same time, part of the compressed gas is also stored inside the temporary storage tank 4. When the sensor 12 detects that there is water inside the temporary storage tank 4, the valve controller 11 controls the connecting valve 7 to close, and the vent valve 6 to open, so that the accumulated water is discharged from the vent valve 6. At the same time, a small amount of compressed gas stored in the temporary storage tank 4 also passes through the vent valve 6 and flows out, taking away the accumulated water inside the vent valve 6, thereby improving the water removal effect. At the same time, since the connecting valve 7 is closed, the air pressure inside the compressed gas storage tank 2 will not be affected during the water removal process. After the water removal is completed, the valve controller 11 controls the vent valve 6 to close, and the connecting valve 7 to open.

[0023] Embodiment 2

[0024] like Figure 1-Figure 3As shown, the utility model proposes an air separation safety venting device. Compared with the first embodiment, this embodiment also includes a timer 10 fixedly installed on the outer surface of the valve controller 11, the timer 10 and the valve controller 11 are electrically connected, and the outer surface of the timer 10 is provided with a display screen 8 and a button 9. The timing information is entered into the timer 10 through the button 9, and the timer 10 transmits the timing opening and closing control signal of the vent valve 6 and the connecting valve 7 to the valve controller 11, and the display screen 8 is used to display the timing opening and closing information of the vent valve 6 and the connecting valve 7.

[0025] In this embodiment, the timer 10 sends a control signal to the valve controller 11 at a regular time, so that the valve controller 11 controls the connecting valve 7 and the vent valve 6 at a regular time, so as to achieve the effect of regularly removing the residual water inside the vent valve 6.

[0026] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An air separation safety venting device, comprising an air compressor (1), a compressed air storage tank (2) and a valve controller (11), characterized in that: The upper surface of the compressed gas storage tank (2) is fixedly connected to a connecting valve (7), the end of the connecting valve (7) is fixedly connected to a connecting elbow (3), the end of the connecting elbow (3) is fixedly connected to a temporary storage tank (4), the lower surface of the temporary storage tank (4) is fixedly connected to a vent valve (6), and a sensor (12) is fixedly installed at the bottom of the inner wall of the temporary storage tank (4).

2. An air separation safety venting device according to claim 1, characterized in that: The connecting valve (7) and the vent valve (6) are both electrically connected to the valve controller (11).

3. An air separation safety venting device according to claim 1, characterized in that: The sensor (12) and the valve controller (11) are electrically connected.

4. The air separation safety venting device according to claim 1, characterized in that: The end of the vent valve (6) is fixedly connected to a vent pipe (5).

5. The air separation safety venting device according to claim 1, characterized in that: A timer (10) is fixedly mounted on the outer surface of the valve controller (11).

6. The air separation safety venting device according to claim 5, characterized in that: The outer surface of the timer (10) is provided with a display screen (8) and buttons (9).

Images