Gas-liquid separation device and gas-liquid separation system

Abstract

The utility model relates to a gas-liquid separation device and a gas-liquid separation system. A gas-liquid separation device comprises a device body, a gas-liquid separation structure and a throttling and pressure limiting structure. The device body is provided with a through flow channel as well as an inlet, an outlet and a discharge port which are communicated with the flow channel, the inlet is used for introducing a gas-liquid mixture, the outlet is used for discharging liquid, and the discharge port is used for discharging gas; the gas-liquid separation structure is connected to the device body and arranged in the flow channel, and the gas-liquid separation structure is used for separating gas and liquid in the gas-liquid mixture; the throttling and pressure limiting structure is connected to the device body and arranged in the flow channel, and the throttling and pressure limiting structure is used for guiding gas to be exhausted from the exhaust port. Impurity gas is effectively prevented from being attached to the surfaces of the heat exchange tubes in the evaporation process, and it is guaranteed that mutual heat transfer between heat exchange media is not affected. Due to the fact that the impurity gas is separated and discharged in time, adverse effects on the quality of water and gas produced by the system are avoided, and the quality of water and gas produced by the whole system is improved.

Description

Technical Field

[0001] This application relates to the field of gas-liquid separation technology, and in particular to a gas-liquid separation device and a gas-liquid separation system. Background Technology

[0002] Non-condensable gases are mainly impurities carried in the liquid. These impurities tend to adhere to the surface of the heat exchange tubes during the evaporation process, affecting the mutual heat transfer between the heat exchange media. If they are not separated in time at the end of the water and gas production process, the quality of the system's water and gas products will be affected. Utility Model Content

[0003] Based on this, it is necessary to provide a gas-liquid separation device and system to address the problem that non-condensable gases are mainly impurities carried in liquids. These impurities tend to adhere to the surface of heat exchange tubes during evaporation, affecting the mutual heat transfer between heat exchange media. If separation is not timely at the water and gas production terminals, it will affect the quality of the system's product water and gas.

[0004] In a first aspect, a gas-liquid separation device includes:

[0005] The device body is provided with a through flow channel and an inlet, an outlet and a discharge port connected to the flow channel. The inlet is used to introduce a gas-liquid mixture, the outlet is used to discharge liquid, and the discharge port is used to discharge gas.

[0006] A gas-liquid separation structure, connected to the device body and disposed within the flow channel, is used to separate the gas and liquid within the gas-liquid mixture; and

[0007] A throttling and pressure-limiting structure is connected to the device body and disposed within the flow channel. The throttling and pressure-limiting structure is used to guide the gas out of the discharge port.

[0008] In one embodiment, the gas-liquid separation structure is sealed within the flow channel, and the gas-liquid separation structure is provided with separation holes through it along the flow direction of the gas-liquid mixture.

[0009] In one embodiment, the radial dimension of the separation orifice gradually increases along the flow direction of the gas-liquid mixture.

[0010] In one embodiment, the throttling and pressure-limiting structure is sealed within the flow channel, and the throttling and pressure-limiting structure is inclined relative to the outlet towards the discharge port along the flow direction of the gas-liquid mixture.

[0011] In one embodiment, the throttling and pressure limiting structure has a water outlet hole extending through it along the flow direction of the gas-liquid mixture on the side opposite to the discharge port.

[0012] In one embodiment, the device body includes a first pipe and a second pipe. The first pipe has an inlet and an outlet at its two ends along its length, and a first opening located between the inlet and the outlet. The second pipe has a discharge port at one end along its length and a second opening at the other end, which communicates with the first opening to form the flow channel. The gas-liquid separation structure and the throttling and pressure-limiting structure are both disposed within the first pipe. The gas-liquid separation structure is disposed on the side edge of the first opening near the inlet, and the throttling and pressure-limiting structure is disposed on the side edge of the first opening near the outlet.

[0013] In one embodiment, the portion of the second pipe near the second opening has the same diameter as the first pipe.

[0014] In one embodiment, the gas-liquid separation device further includes a one-way valve disposed on the second pipeline, the one-way valve being located between the second opening and the discharge port.

[0015] In one embodiment, the gas-liquid separation device further includes a needle valve disposed on the second pipeline, the needle valve being located between the check valve and the discharge port.

[0016] In a second aspect, there is a gas-liquid separation system, the gas-liquid separation system comprising the gas-liquid separation device as described in the first aspect.

[0017] The aforementioned gas-liquid separation device has a gas-liquid separation structure located within the flow channel of the device body, used to separate the gas and liquid in the gas-liquid mixture. For impurity gases entrained in the liquid, this structure can separate the impurity gases from the liquid after the gas-liquid mixture enters the device body. This prevents impurity gases from flowing with the liquid in the system, thereby reducing the possibility of impurity gases reaching the surface of the heat exchange tubes. The gas-liquid separation structure improves the efficiency of gas-liquid separation, allowing the gas and liquid to be effectively separated before entering subsequent processes. Compared to systems without a dedicated gas-liquid separation structure, it can remove impurity gases from the liquid more promptly, preventing large amounts of impurity gases from entering processes such as evaporation in the heat exchange tubes. A throttling and pressure-limiting structure is located within the flow channel and is used to guide the gas out of the exhaust port. During the gas-liquid separation process, the separated gas needs a suitable outlet. The throttling and pressure-limiting structure ensures that the gas can be discharged along a predetermined path, i.e., through the exhaust port. In this process, it maintains the appropriate pressure within the device through throttling and pressure limiting. This contributes to the stable operation of the gas-liquid separation process, resulting in more thorough separation of gas and liquid. A suitable pressure environment can prevent abnormal gas accumulation or backflow within the device, further improving the separation effect. After the gas-liquid mixture is introduced at the inlet, the gas-liquid separation structure and the throttling and pressure-limiting structure work together within the device. After gas-liquid separation, the liquid exits from the outlet. At this point, a large amount of impurity gas in the liquid has been removed, while the separated impurity gas is discharged from the outlet through the throttling and pressure-limiting structure, ensuring that the liquid and gas are effectively treated within the device. This design effectively prevents impurity gas from adhering to the surface of the heat exchange tubes during evaporation, ensuring that the mutual heat transfer between the heat exchange media is not affected. Moreover, at the water and gas production ends, since the impurity gas has been separated and discharged in time in the gas-liquid separation device, it avoids adverse effects on the quality of the system's product water and gas, improving the overall quality of the water and gas produced by the system. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of a gas-liquid separation device provided in an embodiment of this application from a first perspective.

[0020] Figure 2 This is a two-dimensional schematic diagram of a gas-liquid separation device provided in an embodiment of this application from a second perspective.

[0021] Figure 3 This is a three-dimensional schematic diagram of a gas-liquid separation device provided in an embodiment of this application from a third perspective.

[0022] Figure 4 This is a cross-sectional view of a gas-liquid separation device provided in an embodiment of this application.

[0023] Figure 5 This is a schematic diagram of the gas-liquid separation structure of a gas-liquid separation device provided in an embodiment of this application.

[0024] Figure 6 This is a schematic diagram of the throttling and pressure limiting structure of a gas-liquid separation device provided in an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 100, gas-liquid separation device; 1, device body; 11, first pipe; 111, inlet; 112, outlet; 113, first opening; 12, second pipe; 121, discharge port; 122, second opening; 123, first section; 1231, first part; 1232, second part; 124, second section; 2, gas-liquid separation structure; 21, separation hole; 3, throttling and pressure limiting structure; 31, water outlet; 4, one-way valve; 5, needle valve. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] Please see Figures 1 to 3 This application provides a gas-liquid separation device 100, including a device body 1 and a gas-liquid separation structure 2 (see [link to application]). Figure 2 ) and throttling and pressure limiting structure 3 (see Figure 3 The device body 1 is provided with a through flow channel and an inlet 111 communicating with the flow channel (see [reference]). Figure 2 Export 112 (see also) Figure 3The device comprises an inlet 111 for introducing a gas-liquid mixture, an outlet 112 for discharging liquid, and an outlet 121 for discharging gas. A gas-liquid separation structure 2 is connected to the device body 1 and located within the flow channel, separating the gas and liquid within the gas-liquid mixture. A throttling and pressure-limiting structure 3 is also connected to the device body 1 and located within the flow channel, guiding the gas out of the outlet 121. The gas-liquid separation structure 2, located within the flow channel of the device body 1, separates the gas and liquid within the gas-liquid mixture. For impurity gases entrained in the liquid, this structure can separate the impurity gases from the liquid after the gas-liquid mixture enters the device body 1. This prevents impurity gases from flowing with the liquid in the system, thereby reducing the possibility of impurity gases reaching the surface of the heat exchange tubes. The gas-liquid separation structure 2 improves the efficiency of gas-liquid separation, ensuring effective separation of gas and liquid before they enter subsequent processes. Compared to systems without a dedicated gas-liquid separation structure 2, this system can remove impurity gases from the liquid more promptly, preventing large amounts of impurity gases from entering processes such as evaporation in heat exchange tubes. The throttling and pressure-limiting structure 3, located within the flow channel, guides the gas out of the discharge port 121. During gas-liquid separation, the separated gas needs a suitable outlet. The throttling and pressure-limiting structure 3 ensures that the gas is discharged along a predetermined path, i.e., through the discharge port 121. In this process, it maintains a suitable pressure within the device through throttling and pressure limiting. This contributes to the stable operation of the gas-liquid separation process, resulting in more thorough gas and liquid separation. A suitable pressure environment prevents abnormal gas accumulation or backflow within the device, further improving the separation effect. After the gas-liquid mixture is introduced into inlet 111, the gas-liquid separation structure 2 and the throttling and pressure-limiting structure 3 work together within the device body 1. After gas-liquid separation, the liquid exits from outlet 112. At this point, a large amount of impurity gas in the liquid has been removed, while the separated impurity gas is discharged from outlet 121 through the throttling and pressure-limiting structure 3, thus effectively treating the liquid and gas within the device. This design effectively prevents impurity gas from adhering to the surface of the heat exchange tubes during evaporation, ensuring that the mutual heat transfer between the heat exchange media is not affected. Moreover, at the water and gas production ends, since the impurity gas has been separated and discharged in time in the gas-liquid separation device 100, adverse effects on the quality of the system's product water and gas are avoided, improving the overall quality of the water and gas produced by the system.

[0028] It should be noted that the gas-liquid separation device 100 of this application is mainly used for the separation of non-condensable gases from high-temperature water or high-temperature steam condensate.

[0029] Please see Figure 4 In some embodiments, the gas-liquid separation structure 2 is sealed within the flow channel, and the gas-liquid separation structure 2 is positioned along the flow direction of the gas-liquid mixture (e.g., Figure 4A separation hole 21 is provided through the liquid in direction A (as shown). The separation hole 21 can disturb the high-temperature and high-pressure liquid, disrupt the dissolution balance of non-condensable gases in the liquid, and effectively ensure the release of gases entrained in the liquid.

[0030] In an optional embodiment, the number of separation holes 21 includes a plurality of holes, which are spaced apart in the gas-liquid separation structure 2.

[0031] Please see Figure 4 and Figure 5 In some embodiments, the radial dimension of the separation orifice 21 is along the flow direction of the gas-liquid mixture (e.g., Figure 4 The diameter of the separation orifice 21 gradually increases (as shown in direction A). This allows the gas-liquid separation structure 2 to resemble a liquid nozzle. As the gas-liquid mixture passes through the separation orifice 21, the flow velocity gradually increases, making it easier for the gas in the mixture to be released. As the radial dimension of the separation orifice 21 increases, the liquid pressure gradually decreases. This decrease in pressure reduces the solubility of the gas in the liquid, further facilitating the escape of dissolved gas. When the gas-liquid mixture gradually passes from the smaller opening of the separation orifice 21 through the gradually increasing radial opening, the liquid is dispersed into finer droplets, creating more separation interfaces between the gas and liquid, further promoting gas separation from the liquid. The gradually increasing separation orifice 21 allows for more efficient gas-liquid separation within a limited space. The structure of the separation orifice 21 makes the gas-liquid separation device 100 more compact while fully utilizing the flow characteristics of the liquid to achieve effective gas separation, thereby increasing the gas-liquid separation capacity without increasing the device volume.

[0032] Please see Figure 4 In some embodiments, the throttling and pressure-limiting structure 3 is sealed within the flow channel, and the throttling and pressure-limiting structure 3 is positioned relative to the outlet 112 along the flow direction of the gas-liquid mixture (e.g., Figure 4The pressure limiting structure 3 (as shown in direction A) is inclined towards the discharge port 121. It provides back pressure resistance to the liquid flow, better blocking the gas after the gas-liquid separation plate. Due to its low density, the gas in the gas-liquid mixture overflows upwards under pressure. Simultaneously, the pressure limiting structure 3 is installed at an angle, coinciding with the flow surface of the gas discharge chamber of the device body 1, facilitating the upward discharge of non-condensable gas along the inclined surface. Furthermore, the pressure limiting structure 3 optimizes the liquid flow path. Because it is inclined towards the discharge port 121 relative to the outlet 112 along the flow direction of the gas-liquid mixture, it guides the separated liquid along a specific path. After passing through the gas-liquid separation structure 2, the separated liquid is guided by the pressure limiting structure 3, allowing it to flow more smoothly towards the outlet 112, reducing turbulent flow within the device and lowering the possibility of gas re-entrainment. The inclined pressure limiting structure 3 also enhances the flexibility of pressure control, providing a more flexible pressure control method. It can precisely control the back pressure resistance by adjusting its tilt angle based on parameters such as the flow rate and pressure of the gas-liquid mixture. For example, when the flow rate of the gas-liquid mixture is large, the tilt angle can be appropriately increased to increase the back pressure resistance and ensure the gas-liquid separation effect; while when the flow rate is small, the tilt angle can be appropriately decreased to allow the liquid to pass smoothly while still ensuring effective obstruction of the gas. This flexible pressure control helps to adapt to the gas-liquid separation requirements under different operating conditions. It reduces the interference of liquid on gas discharge; the tilted structure makes the flow paths of liquid and gas more spatially separated. The separated liquid mainly flows along the lower part of the tilted throttling and pressure-limiting structure 3 to the outlet 112, while the gas is discharged upwards along the slope. This effectively reduces the interference of liquid on gas discharge during the discharge process. If the throttling and pressure-limiting structure 3 is installed perpendicular to the flow channel, the liquid may more easily splash onto the gas discharge path, leading to poor gas discharge or re-mixing with the liquid. The tilted structure can better avoid this situation, ensuring that the gas can be discharged efficiently and purely from the outlet 121. It improves the self-cleaning ability of the device; after the device has been running for a period of time, some impurities may accumulate in the flow channel. The inclined throttling and pressure-limiting structure 3 facilitates the flow of these impurities along with the liquid to the outlet 112. Because the liquid, guided by the inclined structure, has a certain flushing effect, it can carry away impurities deposited within the device, thereby reducing the possibility of impurity accumulation. This is similar to how water flow in an inclined tank can carry away dirt, improving the device's self-cleaning ability and extending its service life.

[0033] Please see Figure 4 and Figure 6In some embodiments, the throttling and pressure-limiting structure 3 has a water outlet 31 extending through the side opposite to the discharge port 121 along the flow direction of the gas-liquid mixture. The water outlet 31 facilitates the complete drainage of the separated liquid when the gas-liquid separator 100 is installed horizontally. The gas separated by the gas-liquid separator 2 is guided by the throttling and pressure-limiting structure 3 and discharged, while the separated liquid is discharged through the water outlet 112. This improves liquid discharge efficiency, as the water outlet 31 provides a dedicated discharge channel for the liquid. After gas-liquid separation, the liquid can flow directly through the water outlet 31 to the outlet 112, avoiding the liquid's meandering flow within the device or interference with the gas discharge path. This helps improve the overall efficiency of the gas-liquid separator 100, especially when processing large quantities of gas-liquid mixtures, ensuring timely discharge of the separated liquid and guaranteeing continuous and stable operation of the device. Furthermore, the dedicated water outlet 31 effectively prevents liquid from flowing back into the gas-liquid separation area or mixing again with the discharged gas. Without the outlet 31, the liquid might flow back due to pressure changes inside the device or the inertia of the liquid flow. With the outlet 31, the liquid will be continuously and stably discharged towards the outlet 112 under the action of pressure difference, greatly reducing the risk of liquid backflow and remixing, thus ensuring the effect of gas-liquid separation.

[0034] Please see 4 and Figure 6 In an optional embodiment, there is one water outlet 31, located on the side edge of the throttling and pressure-limiting structure 3 opposite to the discharge port 121. This optimizes the liquid flow path. When the water outlet 31 is located on the side edge of the throttling and pressure-limiting structure 3 opposite to the discharge port 121, the liquid, after passing through the throttling and pressure-limiting structure 3, can naturally flow towards the water outlet 31 along the edge. This layout conforms to the flow characteristics of liquids, making the liquid flow path smoother. Just like setting a drain outlet at the edge of a riverbank, the water flow can naturally converge at the drain outlet, reducing energy loss and turbulent flow of the liquid inside the device. This helps improve the efficiency of liquid discharge and reduces the interference of liquid on other structures inside the device. It also improves the quality of gas discharge. Because the water outlet 31 is located on the edge, the liquid mainly discharges from this edge position, making the space for gas discharge relatively concentrated in the middle part of the device. This reduces the influence of liquid on the gas discharge path and avoids liquid splashing or entraining gas to re-mix into the gas discharge channel. The gas can be discharged from the outlet 121 more purely, which improves the quality of the gas discharge and further ensures the effective separation and treatment of non-condensable gas by the gas-liquid separator 100.

[0035] Please see Figure 4In some embodiments, the device body 1 includes a first pipe 11 and a second pipe 12. The first pipe 11 has an inlet 111 and an outlet 112 at its two ends along its own length. The first pipe 11 has a first opening 113 located between the inlet 111 and the outlet 112. The second pipe 12 has a discharge port 121 at one end along its own length and a second opening 122 at the other end. The second opening 122 communicates with the first opening 113 so that the first pipe 11 and the second pipe 12 form a flow channel. The gas-liquid separation structure 2 and the throttling and pressure limiting structure 3 are both disposed in the first pipe 11. The gas-liquid separation structure 2 is disposed on the side edge of the first opening 113 near the inlet 111, and the throttling and pressure limiting structure 3 is disposed on the side edge of the first opening 113 near the outlet 112. Guided Gas Convergence and Discharge: As a key component connecting the first pipe 11 and the second pipe 12, the gas separated by the gas-liquid separation structure 2 near its inlet 111 can more easily converge at the first opening 113 under the obstruction and guidance of the throttling and pressure-limiting structure 3, and then be discharged through the outlet 121 of the second pipe 12. Reduced Gas Interference with Liquid Flow: Because the gas can be guided and discharged in a timely and efficient manner, the liquid is less disturbed by the gas as it flows towards the outlet 112. In some gas-liquid mixing systems, if the gas cannot be separated and discharged well, it may lead to unstable liquid flow, resulting in fluctuations, vortices, and other phenomena. This structural design can effectively avoid these problems and ensure that the liquid flows smoothly towards the outlet 112. Stabilized Liquid Flow Rate and Pressure: The throttling and pressure-limiting structure 3 is located near the outlet 112 at the edge of the first opening 113, which can effectively throttle and limit the pressure of the liquid after gas-liquid separation. By reasonably controlling the liquid flow rate and pressure, the liquid can flow out of the outlet 112 in a stable state. Working in conjunction with the gas-liquid separation structure 2: The throttling and pressure-limiting structure 3 is positioned relatively close to the gas-liquid separation structure 2 within the first pipe 11, allowing for effective synergy. Ease of installation: The gas-liquid separation structure 2 and the throttling and pressure-limiting structure 3 are located on either side of the edge of the first opening 113, a convenient position for installation. They can be easily fixed inside the first pipe 11 using simple welding, flange connections, or other connection methods. Furthermore, technicians can easily position and adjust them during installation.

[0036] Please see Figure 4In some embodiments, the diameter d2 of the second pipe 12 near the second opening 122 is the same as the diameter d1 of the first pipe 11. Using pipes of the same diameter effectively ensures smooth gas entry into the second pipe 12, reducing gas residue in the first pipe 11. It ensures the continuity of gas flow; when the second pipe 12 and the first pipe 11 have the same diameter, the cross-sectional area of ​​the flow channel does not suddenly change as the gas enters the second pipe 12 from the first pipe 11 through the first opening 113. With a constant pipe diameter, the gas can maintain a relatively stable flow velocity and flow state. The gas can smoothly enter the second pipe 12 from the first pipe 11 without flow obstruction due to resistance caused by changes in pipe diameter, thus effectively reducing gas residue in the first pipe 11. It also reduces pressure loss and energy consumption; the same pipe diameter reduces pressure loss during gas transmission. In a pipeline system, changes in pipe diameter can lead to local resistance, resulting in pressure drop. If the diameter of the second pipe 12 is smaller than that of the first pipe 11, the gas will experience a significant pressure loss when entering the second pipe 12 due to the narrowing of the passage; conversely, if the pipe diameter is larger, gas diffusion will lead to energy loss. Using pipes of the same diameter avoids these problems, allowing the gas to pass smoothly from the first pipe 11 into the second pipe 12 with minimal pressure and energy loss, ensuring efficient gas discharge. This simplifies the device design and manufacturing process; using pipes of the same diameter makes designing and manufacturing the gas-liquid separation device 100 more convenient. From a design perspective, there is no need to consider complex fluid dynamics calculations and structural design adjustments caused by changes in pipe diameter. For manufacturing, pipes of the same diameter are simpler to process and assemble. For example, during pipe connection, fittings and connection methods of the same specifications can be used, reducing connection mismatches or sealing problems that may occur due to differences in pipe diameter, thus improving the manufacturing efficiency and quality of the device.

[0037] Please see Figure 4In some embodiments, the gas-liquid separator 100 further includes a one-way valve 4, which is located on the second pipe 12 between the second opening 122 and the discharge port 121. The one-way valve 4 effectively ensures the system is sealed and clean. It prevents gas backflow by allowing gas to flow freely from the first pipe 11 through the second pipe 12 to the discharge port 121, but prevents reverse flow. In the gas-liquid separator 100, when internal pressure fluctuations or external factors cause a tendency for gas to flow backward, the one-way valve 4 can play its blocking role. For example, in some complex industrial production processes, the pressure of the entire system may fluctuate due to the start-up or shutdown of other equipment or changes in operation. Without the one-way valve 4, gas discharged into the area near the discharge port 121 of the second pipe 12 may flow back into the first pipe 11, re-mixing into the gas-liquid mixture and affecting the gas-liquid separation effect. The one-way valve 4 also helps stabilize the system pressure by restricting the direction of gas flow, thus helping to stabilize the pressure distribution within the gas-liquid separator 100. When the gas-liquid separator 100 is operating normally, gas enters the second pipe 12 from the first pipe 11 and is discharged, maintaining a dynamic pressure equilibrium within the system. Without the check valve 4, gas backflow could cause sudden pressure increases or decreases in certain areas of the system. This pressure instability could affect the efficiency of gas-liquid separation and even damage the entire device. The check valve 4 effectively maintains stable system pressure, allowing the gas-liquid separation process to proceed under a relatively stable pressure environment. It also protects downstream equipment. If other downstream equipment is connected to the discharge port 121, the check valve 4 provides protection. It prevents gas or impurities that might backflow from downstream of the discharge port 121 from entering the gas-liquid separator 100, thus affecting its normal operation. For example, a downstream device could be a gas storage device, which might experience gas backflow due to pressure changes or operational errors. The check valve 4 prevents this backflowing gas from entering the gas-liquid separator 100, avoiding damage to its internal structure and separation process.

[0038] Please see Figure 4In some embodiments, the gas-liquid separator 100 further includes a needle valve 5, which is located on the second pipe 12 between the check valve 4 and the discharge port 121. The needle valve 5 allows adjustment of the discharge rate of the gas-liquid separator 100, enabling real-time discharge of non-condensable gases during system operation. The needle valve 5 allows for fine-tuning of the flow rate. Its valve core is needle-shaped, and the gap between the needle-shaped valve core and the valve seat is controlled by rotating the valve stem. This structure allows for very precise adjustment of the gas flow rate. Compared to other valves, the needle valve 5 can achieve adjustments with smaller flow rate variations. For example, in experimental devices or chemical production processes with extremely high gas flow rate accuracy requirements, adjusting the needle valve 5 can precisely control the discharge rate of non-condensable gases, ensuring that the gas-liquid balance within the system is maintained at an optimal level. To address flow rate variations, the amount of non-condensable gas generated during the operation of the gas-liquid separator 100 may change due to various factors (such as temperature, pressure, and liquid flow rate). The needle valve 5 can flexibly adjust the gas discharge rate according to these changes. When the amount of non-condensable gas produced increases, the discharge rate can be increased by appropriately opening needle valve 5; conversely, when the production rate decreases, needle valve 5 can be closed. This flexibility allows the gas-liquid separator 100 to adapt to different working conditions, ensuring effective gas-liquid separation under various operating conditions. In the gas-liquid separator 100, needle valve 5 can work in conjunction with other components such as check valve 4 to maintain stable system pressure. Check valve 4 prevents gas backflow, while needle valve 5 can adjust the gas discharge rate according to the actual system pressure, ensuring that the system pressure remains within a reasonable range, guaranteeing the stable operation of the gas-liquid separation process, and also contributing to the safety of the entire system.

[0039] Please see Figure 4In an optional embodiment, the second pipe 12 includes a first section 123 and a second section 124 that are connected. The first section 123 has a second opening 122 and is connected to the first pipe 11. The second section 124 has a discharge port 121. The first section 123 includes a first portion 1231 and a second portion 1232 that are connected, with the second portion 1232 located between the first portion 1231 and the second section 124. The diameter d2 of the first portion 1231 is the same as the diameter d1 of the first pipe 11, and the diameter of the second portion 1232 gradually decreases from the first portion 1231 toward the second section 124 until it is the same as the diameter of the second section 124. A check valve and a needle valve 5 are both located on the second section 124. The guiding effect of the gradually decreasing pipe diameter: the diameter of the second section 1232 gradually decreases from the first section 1231 towards the second section 124. This gradual design allows the gas flow velocity to gradually increase after flowing from the first pipe 11 into the second pipe 12, helping the gas to flow more efficiently to the discharge port 121. Simultaneously, the gradually changing pipe diameter avoids violent disturbances and energy losses caused by sudden changes in pipe diameter, resulting in smoother gas flow. Improving gas discharge efficiency: the design of the first section 1231 of the first section 123 having the same pipe diameter as the first pipe 11 ensures a smooth transition of gas from the first pipe 11 to the second pipe 12. Then, passing through the gradually decreasing diameter of the second section 1232, the gas flow velocity increases, and finally, it is discharged in the second section 124. The entire process is like designing an acceleration channel for the gas, effectively improving gas discharge efficiency and enabling the gas-liquid separator 100 to discharge the separated gas more quickly. Concentrated pressure regulation area: since the pipe diameter change is mainly concentrated in the second section 1232 of the first section 123, the pressure environment of the second section 124 is relatively easier to control. By installing a needle valve 5 in the second section 124, the pressure in this area can be effectively regulated. When it is necessary to increase or decrease the pressure within the system, operation can be performed through the needle valve 5 in this relatively independent pressure zone without excessive interference to the gas-liquid separation process of the first pipe 11 and the first part 1231 of the first section 123. Optimized pressure distribution: This pipe structure design helps optimize the pressure distribution within the gas-liquid separator 100. The gradually changing pipe diameter design of the first section 123 can share some of the pressure changes, avoiding the impact of sudden pressure changes on the device. Simultaneously, the valve settings in the second section 124 can further regulate the pressure, enabling the entire device to maintain a relatively stable pressure state during operation. This is beneficial for the long-term stable operation of the gas-liquid separator 100 and reduces potential equipment damage or poor separation performance caused by pressure fluctuations. Compact structure and coordinated operation: The reasonable distribution of pipe diameter changes and valve settings in different parts of the second pipe 12 makes the device structure more compact. The gradually changing pipe diameter design of the first section 123 and the valve settings in the second section 124 can work together to achieve efficient gas emission and stable system operation.

[0040] The operation of the gas-liquid separation device 100 in this embodiment is as follows: Please refer to... Figure 4 The high-temperature gas-liquid mixture enters the first pipe 11 along direction A through inlet 111. After passing through the gas-liquid separation structure 2, the gas is effectively released under the disturbance of the separation hole 21. The gas enters the second pipe 12 along direction B through the first opening 113, and after passing through the one-way valve 4 and needle valve 5, it is discharged through the discharge port 121. The separated liquid, after being degassed by the throttling and pressure limiting structure 3, is discharged from the water outlet 31 and then exits through the outlet 112.

[0041] In summary, the gas-liquid separation system provided in this application, by setting up a first pipe 11 and a second pipe 12, as well as a gas-liquid separation structure 2 and a throttling and pressure-limiting structure 3, simplifies the structure of the gas-liquid separation device 100, improves installation versatility, enables continuous and smooth discharge of non-condensable gases in the gas-liquid mixture, and ensures stable gas pressure in the gas-liquid separation device 100, avoiding problems such as poor discharge due to negative pressure, and reducing the problem of siphoning in the non-condensable gas branch pipes due to the absence of back pressure valves or throttling orifice plates, which prevents discharge.

[0042] Secondly, embodiments of this application also provide a gas-liquid separation system, which includes the gas-liquid separation device 100 as described in the first aspect. This gas-liquid separation system possesses all the technical effects of the gas-liquid separation device 100, which will not be elaborated further here. The gas-liquid separation device 100 can be installed horizontally or vertically, and its inlet 111 and outlet 112 can be connected to other devices in the gas-liquid separation system via a quick-release chuck interface.

[0043] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0044] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0047] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0048] 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.

[0049] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A gas-liquid separation device, characterized in that, include: The device body is provided with a through flow channel and an inlet, an outlet and a discharge port connected to the flow channel. The inlet is used to introduce a gas-liquid mixture, the outlet is used to discharge liquid, and the discharge port is used to discharge gas. A gas-liquid separation structure is connected to the device body and disposed within the flow channel. The gas-liquid separation structure is used to separate the gas and liquid in the gas-liquid mixture. as well as A throttling and pressure-limiting structure is connected to the device body and disposed within the flow channel. The throttling and pressure-limiting structure is used to guide the gas out of the discharge port.

2. The gas-liquid separation device according to claim 1, characterized in that, The gas-liquid separation structure is sealed inside the flow channel, and the gas-liquid separation structure is provided with separation holes through it along the flow direction of the gas-liquid mixture.

3. The gas-liquid separation device according to claim 2, characterized in that, The radial dimension of the separation orifice gradually increases along the flow direction of the gas-liquid mixture.

4. The gas-liquid separation device according to claim 1, characterized in that, The throttling and pressure limiting structure is sealed inside the flow channel, and the throttling and pressure limiting structure is inclined relative to the outlet towards the discharge port along the flow direction of the gas-liquid mixture.

5. The gas-liquid separation device according to claim 4, characterized in that, The throttling and pressure limiting structure has a water outlet hole extending through it along the flow direction of the gas-liquid mixture on the side opposite to the discharge port.

6. The gas-liquid separation device according to claim 1, characterized in that, The device body includes a first pipe and a second pipe. The first pipe has an inlet and an outlet at its two ends along its length, and a first opening located between the inlet and the outlet. The second pipe has a discharge port at one end along its length and a second opening at the other end, which communicates with the first opening to form the flow channel. The gas-liquid separation structure and the throttling and pressure-limiting structure are both disposed within the first pipe. The gas-liquid separation structure is disposed on the side edge of the first opening near the inlet, and the throttling and pressure-limiting structure is disposed on the side edge of the first opening near the outlet.

7. The gas-liquid separation device according to claim 6, characterized in that, The portion of the second pipe near the second opening has the same diameter as the first pipe.

8. The gas-liquid separation device according to claim 6, characterized in that, The gas-liquid separation device further includes a one-way valve, which is installed on the second pipeline and located between the second opening and the discharge port.

9. The gas-liquid separation device according to claim 8, characterized in that, The gas-liquid separation device also includes a needle valve, which is located on the second pipeline and between the check valve and the discharge port.

10. A gas-liquid separation system, characterized in that, The gas-liquid separation system includes the gas-liquid separation device as described in any one of claims 1 to 9.

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