Gas-liquid separator and corresponding compressed air system

Abstract

The utility model discloses a gas-liquid separator and a corresponding compressed air system, and the gas-liquid separator comprises a primary gas-liquid separation column, a secondary gas-liquid separation column and a secondary gas-liquid separation column, the second-stage gas-liquid separation column is parallel to the first-stage gas-liquid separation column and is provided with a gas outlet pipeline; the liquid conveying pipe is communicated with the first-stage gas-liquid separation column and the second-stage gas-liquid separation column; the first gas conveying pipe is higher than the liquid conveying pipe and is communicated with the first-stage gas-liquid separation column and the second-stage gas-liquid separation column; the position of the second gas conveying pipe is higher than that of the first gas conveying pipe, and the first-stage gas-liquid separation column and the second-stage gas-liquid separation column are communicated; the first waterproof net is arranged in the first-stage gas-liquid separation column and is higher than the gas inlet pipeline; the second waterproof net is arranged in the second-stage gas-liquid separation column and is higher than the first gas conveying pipe and lower than the second gas conveying pipe; and the third waterproof net is arranged in the second-stage gas-liquid separation column and is higher than the second gas conveying pipe. The gas-liquid separation device has the advantages that the gas-liquid separation effect can be effectively achieved in time, and facility faults caused by the fact that liquid water rushes upwards along with air in gas equipment are avoided.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically to a gas-liquid separator and a corresponding compressed air system. Background Technology

[0002] The compressed air system room has three types of equipment, including a refrigerated dryer, an adsorption dryer, and a gas-liquid separator.

[0003] However, in hospital settings, during actual use of end-point gas equipment, the compressed air pipelines are long and located in complex environments, some buried underground and others exposed outdoors, resulting in significant temperature and elevation differences. Because of the lower temperature and elevation, small amounts of condensate can easily form in the lower pipelines. Over time, this accumulation in the lower pipelines can eventually form a liquid water column in the rising pipelines, which is then carried upwards by the airflow to the gas-using equipment. This leads to intermittent instances of large amounts of liquid water in the compressed air. The small-capacity gas-liquid separators on the gas-using equipment cannot separate too much water in time, ultimately causing damage to clinical ventilators and other gas-using equipment, or even unnecessary medical accidents. Utility Model Content

[0004] Therefore, it is necessary to provide a gas-liquid separator and a corresponding compressed air system to address the existing problems mentioned above. This system can effectively solve the problem of untimely gas-liquid separation in complex operating conditions such as long compressed air pipelines or large temperature differences between the upper and lower parts of the system, and prevent equipment failure caused by liquid water rising with the air.

[0005] A gas-liquid separator, characterized in that it comprises:

[0006] A primary gas-liquid separation column is provided with an air inlet pipe and a first drain pipe;

[0007] The secondary gas-liquid separation column is located alongside the primary gas-liquid separation column and is equipped with an outlet pipe and a second drain pipe.

[0008] The infusion tube connects the primary gas-liquid separation column and the secondary gas-liquid separation column;

[0009] The first gas delivery tube is positioned higher than the liquid delivery tube and connects the primary gas-liquid separation column and the secondary gas-liquid separation column.

[0010] The second gas supply pipe is located higher than the first gas supply pipe and connects the primary gas-liquid separation column and the secondary gas-liquid separation column.

[0011] The first water-proof mesh is installed inside the primary gas-liquid separation column, and is positioned higher than the air inlet pipe;

[0012] The second water-proof mesh is installed inside the secondary gas-liquid separation column, and its position is higher than the first gas delivery pipe and lower than the second gas delivery pipe;

[0013] The third water-blocking mesh is installed inside the secondary gas-liquid separation column, and is positioned higher than the second gas delivery pipe.

[0014] The gas-liquid separator described above, wherein:

[0015] The first, second, and third water-blocking nets all use multi-layer stainless steel mesh.

[0016] The gas-liquid separator described above, wherein:

[0017] The air inlet pipe has an angled air outlet that extends into the first-stage gas-liquid separation column, with its outlet facing downwards.

[0018] The first gas supply pipe has an oblique outlet that extends into the secondary gas-liquid separation column, with its outlet facing downwards.

[0019] The gas-liquid separator described above, wherein:

[0020] The diameter of the intake pipe is smaller than the diameter of the first air delivery pipe.

[0021] The gas-liquid separator described above, wherein:

[0022] A pressure gauge is installed on the secondary gas-liquid separation column at the position corresponding to the gas outlet pipe.

[0023] The gas-liquid separator described above, wherein:

[0024] The first drainage pipe is equipped with a ball valve, and the second drainage pipe is equipped with a solenoid valve.

[0025] The gas-liquid separator described above, wherein:

[0026] Both the air inlet and outlet pipes are equipped with air valves.

[0027] A compressed air system characterized by including the aforementioned gas-liquid separator, wherein the liquid separator is vertically connected in series at the end of the vertical gas supply main pipe of each building.

[0028] The aforementioned compressed air system also includes underpressure and overpressure alarm devices to constantly monitor whether the pressure gauge readings are abnormal.

[0029] The gas-liquid separator and corresponding compressed air system described above have the following advantages over the prior art:

[0030] 1. Its structural design is more suitable for special compressed air system application scenarios such as hospitals. When compressed air containing liquid enters the gas-liquid separator through the inlet pipe, the diameter increases, the flow rate decreases, and the flow rate remains unchanged. The denser liquid in the airflow will settle in each container and accumulate at the bottom of the two gas-liquid separation columns of the gas-liquid separator. The solenoid valve opens at regular intervals, and the liquid can be carried away by forced drainage. This can effectively solve the problem of a large amount of water appearing in the middle of the airflow when the compressed air pipeline is long or the temperature difference between the upper and lower parts is large. It can also prevent the equipment from malfunctioning due to water vapor rushing up with the air.

[0031] 2. It can achieve precise pressure control and fine gas filtration, and can support real-time inspection to promptly detect and eliminate potential hazards. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the working principle of the gas-liquid separator of this utility model. Detailed Implementation

[0033] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0034] In the description of this utility model, it should be understood that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] See Figure 1As shown, this utility model provides a gas-liquid separator, comprising: a primary gas-liquid separation column 100 for preliminary gas-liquid separation, which has an inlet pipe 101 through which compressed air containing water vapor enters the entire separator, and a first drain pipe 103 for discharging the separated liquid; a secondary gas-liquid separation column 200 for further gas-liquid separation, which is parallel to the primary gas-liquid separation column 100, and has an outlet pipe 207 through which the separated compressed air is sent to the next stage of the compressed air system or the next air-using device, and a second drain pipe 206 for discharging the separated liquid; generally, it is advisable to ensure that the total water-holding capacity of the two gas-liquid separation columns is 4-5L; and a liquid transfer pipe 205 for transferring the separated liquid, also called a liquid balance pipe, which connects the primary gas-liquid separation column 100 and the secondary gas-liquid separation column 200, so that the separated liquid is separated by the two gas-liquid separation columns. The water levels at the bottom of the columns converge, and the water levels in the two gas-liquid separation columns are kept at the same height through the connection of the infusion pipe 205. The first gas infusion pipe 201, positioned higher than the infusion pipe 205, connects the primary gas-liquid separation column 100 and the secondary gas-liquid separation column 200. The second gas infusion pipe 202, positioned higher than the first gas infusion pipe 201, connects the primary gas-liquid separation column 100 and the secondary gas-liquid separation column 200. The infusion pipe 205, the first gas infusion pipe 201, and the second gas infusion pipe 202 form three connecting pipes that connect the two columns, effectively increasing the efficiency of gas separation. The large diameter reduces the pressure difference between the two columns, lowers the flow velocity within the column, and facilitates the sedimentation of moisture in the gas. The first water-blocking mesh 102 is installed inside the primary gas-liquid separation column 100, and is positioned higher than the inlet pipe 101. The second water-blocking mesh 204 is installed inside the secondary gas-liquid separation column 200, and is positioned higher than the first gas delivery pipe 201 but lower than the second gas delivery pipe 202. The third water-blocking mesh 203 is installed inside the secondary gas-liquid separation column 200, and is positioned higher than the second gas delivery pipe 202. The three water-blocking meshes can effectively prevent moisture from being discharged with the airflow.

[0038] The gas-liquid separator of this invention is structurally designed to be more suitable for special compressed air system applications such as hospitals. It can support large-capacity gas-liquid separation. Its working principle is that when compressed air containing liquid enters the gas-liquid separator through the inlet pipe, the internal separation structure of the gas-liquid separator has the characteristics of increased flow diameter, promoting a decrease in flow velocity, but maintaining a constant flow rate. This causes the denser liquid in the airflow to settle down at the first air delivery pipe, the inlet pipe, and the water-blocking mesh, and accumulate at the bottom of the two gas-liquid separation columns of the gas-liquid separator, and be discharged in time by the drainage pipe. This can effectively solve the problem of untimely gas-liquid separation under complex operating conditions such as long compressed air delivery pipes or large temperature differences, and avoid equipment failure caused by water vapor rising with the air. Moreover, the two-stage gas-liquid separation structure of this invention has a more significant separation effect than the conventional single-stage separation, and can separate more liquid.

[0039] In some embodiments, the first waterproof mesh 102, the second waterproof mesh 204, and the third waterproof mesh 203 are all made of multi-layer stainless steel mesh.

[0040] In some embodiments, the air inlet pipe 101 has an angled air outlet that extends into the primary gas-liquid separation column 100, with its outlet facing downwards; the first air delivery pipe 201 has an angled air outlet that extends into the secondary gas-liquid separation column 200, with its outlet facing downwards; the downward-facing angled air outlet design is more conducive to the deposition and falling of liquid after gas-liquid separation, thereby improving the gas-liquid separation efficiency.

[0041] Preferably, the diameter of the inlet pipe 101 is smaller than the diameter of the first gas delivery pipe 201. A pressure gauge 400 is installed on the secondary gas-liquid separator column 200 at the position corresponding to the outlet pipe 207, which is used to continuously detect the pressure value of the compressed gas output after gas-liquid separation by the gas-liquid separator, so as to ensure normal gas supply.

[0042] Preferably, a ball valve is installed on the first drainage pipe 103, and a solenoid valve 300 is installed on the second drainage pipe 206. The solenoid valve 300 has a self-control function to realize automatic timed drainage, while the ball valve is used for backup manual drainage. Air valves 500 are installed on both the air inlet pipe 101 and the air outlet pipe 207 for easy installation and maintenance, and can be designed according to the needs of the scenario.

[0043] This invention also provides a compressed air system, which includes the aforementioned gas-liquid separator. The liquid separator is vertically connected in series at the end of the vertical air supply main pipe of each building. When the height of the entire compressed air system spans a large area, the gas-liquid separator can be installed at different locations as needed. The compressed air system may also include underpressure and overpressure alarm devices to constantly monitor whether the pressure gauge readings are abnormal, reducing the frequency of manual inspections and improving work efficiency.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gas-liquid separator, characterized in that, include: A primary gas-liquid separation column is provided with an air inlet pipe and a first drain pipe; The secondary gas-liquid separation column is located alongside the primary gas-liquid separation column and is equipped with an outlet pipe and a second drain pipe. The infusion tube connects the primary gas-liquid separation column and the secondary gas-liquid separation column; The first gas delivery tube is positioned higher than the liquid delivery tube and connects the primary gas-liquid separation column and the secondary gas-liquid separation column. The second gas supply pipe is located higher than the first gas supply pipe and connects the primary gas-liquid separation column and the secondary gas-liquid separation column. The first water-proof mesh is installed inside the primary gas-liquid separation column, and is positioned higher than the air inlet pipe; The second water-proof mesh is installed inside the secondary gas-liquid separation column, and its position is higher than the first gas delivery pipe and lower than the second gas delivery pipe; The third water-blocking mesh is installed inside the secondary gas-liquid separation column, and is positioned higher than the second gas delivery pipe.

2. The gas-liquid separator according to claim 1, characterized in that: The first, second, and third water-blocking nets all use multi-layer stainless steel mesh.

3. The gas-liquid separator according to claim 1, characterized in that: The air inlet pipe has an angled air outlet that extends into the first-stage gas-liquid separation column, with its outlet facing downwards; the first air delivery pipe has an angled air outlet that extends into the second-stage gas-liquid separation column, with its outlet facing downwards.

4. The gas-liquid separator according to claim 1, characterized in that: The diameter of the intake pipe is smaller than the diameter of the first air delivery pipe.

5. The gas-liquid separator according to claim 1, characterized in that: A pressure gauge is installed on the secondary gas-liquid separation column at the position corresponding to the gas outlet pipe.

6. The gas-liquid separator according to claim 1, characterized in that: The first drainage pipe is equipped with a ball valve, and the second drainage pipe is equipped with a solenoid valve.

7. The gas-liquid separator according to claim 1, characterized in that: Both the air inlet and outlet pipes are equipped with air valves.

8. A compressed air system characterized by: Includes a gas-liquid separator as described in any one of claims 1-7, wherein the liquid separator is vertically connected in series at the end of the vertical gas transmission main pipe of each building.

9. The compressed air system of claim 8, wherein: It also includes underpressure and overpressure alarms to constantly monitor whether the pressure gauge readings are abnormal.

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