A droplet / salt particle separation apparatus for a salt cavern gas storage system

Abstract

The application discloses a liquid drop / salt particle separation device of a salt cavern gas storage system in the technical field of salt cavern gas storage, and aims to solve the problem of short service life of a fine separation device in the prior art. The device comprises a flow dividing element for dividing the flow of the salt cavern gas storage, laying the foundation for the process of gas collision to eliminate kinetic energy; each first flow channel is a basic unit for separating liquid drops / salt particles, and the collision between adjacent first flow channels can also separate liquid drops / salt particles; a liquid discharge groove directly screens out liquid drops / salt particles with large particle sizes; through the collision of branch gas of adjacent first flow channels, most kinetic energy of the liquid drops / salt particles is eliminated, and the liquid drops / salt particles with medium particle sizes are caused to fall along with gravity due to the formed turbulence; the liquid drop / salt particle separation device is integrated into the salt cavern gas storage system, the fine parts in the fine separation device are prevented from being excessively corroded, and therefore the service life of the fine separation device in the salt cavern gas storage can be remarkably prolonged.

Description

Technical Field

[0001] This invention relates to a droplet / salt particle separation device for a salt cavern gas storage system, belonging to the field of salt cavern gas storage technology. Background Technology

[0002] Compressed air energy storage helps the power grid to "shave peaks and fill valleys," alleviating electricity pressure. However, the cost of building artificial gas storage facilities separately remains high, so the industry has developed a solution of using salt caverns to store gas instead of gas storage facilities.

[0003] The droplets from natural salt caverns are rich in salt particles, high-humidity brine, and gases such as H2S seeping from the surrounding rock strata, which can corrode the inner walls of the pipelines in salt cavern gas storage systems. Therefore, the industry has developed methods using cyclone separators to separate droplets from the compressed air during the gas extraction expansion phase, removing harmful droplets and ensuring the safety of salt cavern gas storage systems. Although fine separation devices, such as cyclone separators, achieve a high degree of separation and can separate tiny droplets / salt particles, the delicate components within these devices are susceptible to corrosion and damage under prolonged exposure to droplets, resulting in a reduced service life.

[0004] Therefore, the fine separation devices used in existing salt cavern gas storage systems for droplet / salt particle separation have a short service life. Summary of the Invention

[0005] The purpose of this application is to overcome the shortcomings of the prior art and provide a droplet / salt particle separation device for a salt cavern gas storage system that can separate large and medium-sized droplets / salt particles in advance when facing corrosive salt cavern compressed air, thereby improving the service life of the fine separation device.

[0006] To achieve the above objectives, this application employs the following technical solution: This application provides a droplet / salt particle separation device for a salt cavern gas storage system, including a primary screening device, the primary screening device comprising: Diverter, used to divert gas from salt caverns; Multiple first flow channels, each with its inlet connected to each outlet of the flow divider; multiple primary screening baffles distributed along the first flow channels, each primary screening baffle including a droplet sieve plate and a guide plate; The droplet sieve plate on each first flow channel is used to separate the tributary gas and the mainstream gas that can pass through the droplet sieve plate from the salt cavern gas diversion. The droplet sieve plate guides the tributary gas to collide with the tributary gas in the adjacent first flow channel. The droplet sieve plate is also provided with a drain trough for screening droplets / salt particles from the mainstream gas. The guide plate is adjacent to the droplet sieve plate and is spaced a certain distance from the channel wall of the first flow channel.

[0007] In some embodiments of this application, the diverting element is an inlet baffle, which is perpendicular to the incoming flow direction of the salt cavern gas. The inlet baffle diverts the salt cavern gas into two streams of salt cavern gas with opposite flow directions.

[0008] In some embodiments of this application, the inlets of the two first flow channels are respectively connected to the outlet of the inlet baffle, and the two first flow channels and their primary screening baffles are symmetrically distributed on both sides of the inlet baffle so that the branch gases separated from the two first flow channels collide symmetrically.

[0009] In some embodiments of this application, a cylindrical body is further included, with two first flow channels distributed along the inner walls of both sides of the cylindrical body, the droplet sieve plate being used to guide the branch gas to the center of the cylindrical body, and the guide plate being spaced a certain distance from the cylindrical body wall and distributed along the tangent of the cylindrical body wall.

[0010] In some embodiments of this application, the primary screening device further includes a first annular plate and a second annular plate, the first annular plate and the second annular plate being spaced apart by a certain distance, and the inner wall of the cylinder, the first annular plate and the second annular plate forming the first flow channel within the cylinder.

[0011] In some embodiments of this application, the cylinder is provided with a drain outlet on the side of the primary screening device away from the baffle device; The outer edges of the first annular plate and the second annular plate are both connected to the inner wall of the cylinder. The first annular plate gradually moves towards the drain outlet from the outer edge to the inner edge. The second annular plate is provided with a drain hole leading to the drain outlet. The drain hole is adjacent to the drain trough.

[0012] In some embodiments of this application, a baffle device and a fine separation device are also included. The fine separation device is connected to the primary screening device through the cylinder. The baffle device is disposed between the primary screening device and the fine separation device. The baffle device includes multiple baffles arranged along the direction of gas flow between the primary screening device and the fine separation device. The fine separation device includes multiple cyclone separators. Multiple cyclone separators are distributed in such a way that their inlet surfaces together form a concave envelope that points inward toward the baffle device. The cyclone separators that are closer to the center of the cylinder are further away from the baffle device. Alternatively, multiple baffles can be aligned with one end of the primary screening device, while the end closest to the fine separation device can be arranged to be longer as it gets closer to the center of the cylinder.

[0013] In some embodiments of this application, the cylinder is provided with a drain outlet on the side of the primary screening device away from the baffle device; The primary screening device further includes a first annular plate, which is located on the side of the primary screening device close to the baffle device. The outer edge of the first annular plate is connected to the inner wall of the cylinder, and the first annular plate gradually moves from the outer edge to the inner edge toward the drain outlet.

[0014] In some embodiments of this application, the baffles form a wave-like baffle structure along the direction of gas flow between the primary screening device and the fine separation device.

[0015] In some embodiments of this application, the fine separation device further includes a liquid guide plate, the surface of which is arranged to be higher as it gets closer to the center of the cylinder. The cyclone separator is embedded in the liquid guide plate, and the gas outlet and liquid outlet of the cyclone separator are both located on the side of the liquid guide plate away from the baffle device. The gas outlet of the cyclone separator is provided with a baffle plate, which gradually moves towards the liquid guide plate from the center to the edge.

[0016] Compared with the prior art, the beneficial effects achieved by this application are as follows: The droplet / salt particle separation device for the salt cavern gas storage system provided in this application uses a flow divider to divert the stored gas in the salt cavern, laying the foundation for the process of eliminating kinetic energy through gas collision. Each first flow channel itself is a basic unit for separating droplets / salt particles, and the collision between adjacent first flow channels can also separate droplets / salt particles. The drain tank can directly screen out large-diameter droplets / salt particles. Through the collision of the branch gas in adjacent first flow channels, most of the kinetic energy of the branch gas and the droplets / salt particles it contains can be dissipated, and a certain amount of turbulence can be formed, causing medium-diameter droplets / salt particles to fall with gravity after direct or mutual adhesion and be in an easily collectable state. The droplet / salt particle separation device is incorporated into the salt cavern gas storage system as a pre-screening device for the fine separation device to perform the primary pre-screening separation work of the stored gas in the salt cavern, avoiding excessive corrosion of the fine components in the fine separation device, thus significantly improving the service life of the fine components in the fine separation device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the external structure of the droplet / salt particle separation device of the salt cavern gas storage system provided in this embodiment when it is vertical along the gravity line; Figure 2 yes Figure 1 A quarter section view; Figure 3 yes Figure 2 Schematic diagram of the primary and intermediate screening device; Figure 4 yes Figure 3 A bottom view; Figure 5 yes Figure 3 Schematic diagram of the structure of the primary and secondary screening baffle; Figure 6 yes Figure 2 Schematic diagram of the middle baffle device; Figure 7 yes Figure 6 Schematic diagram of the structure of the intermediate-baffle plate; Figure 8 yes Figure 2 Schematic diagram of the intermediate-fine separation unit; Figure 9 yes Figure 8 Schematic diagram of the cyclone separator and baffle plate; In the picture: 1. Cylinder body; 1-1. Inlet pipe; 1-2. Exhaust pipe; 1-3. Drain outlet; 2. Primary screening device; 2-1. First annular plate; 2-2. Second annular plate; 2-3. Primary screening baffle; 2-3.1. Droplet sieve plate; 2-3.2. Guide plate; 2-4. Drain hole; 2-5. Diverter; 2-5.1. Inlet baffle; 2-6. First mounting hole; 2-7. Drainage tank; 3. Baffle device; 3-1. Annular base plate; 3-2. Baffle plate; 3-3. Second mounting hole; 4. Fine separation device; 4-1. Liquid guide plate; 4-2. Cyclone separator; 4-3. Baffle plate; 5. Liquid delivery tube. Detailed Implementation

[0019] The technical solutions of this application / the embodiments thereof will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application / the embodiments thereof, and not all embodiments thereof. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application / the application thereof or its application or use. Example 1

[0020] This embodiment provides a droplet / salt particle separation device for a salt cavern gas storage system to solve the problem of short service life of the fine separation device 4 in the prior art when facing corrosive salt cavern compressed air.

[0021] refer to Figures 1 to 9The droplet / salt particle separation device for the salt cavern gas storage system provided in this embodiment includes a primary screening device 2, which includes: Diverter 2-5 is used to divert gas stored in salt caverns. Diverting the gas stored in salt caverns not only lays the foundation for the elimination of kinetic energy through gas collisions as described later, but also improves the initial screening efficiency. The implementation of diverter 2-5 is varied; it can be a pipe with multiple diversions or a plate. Multiple first flow channels, the form of which is not fixed, can be formed by the constraint of the container wall or by the constraint of the flow path through pipes; the inlet of each first flow channel is connected to each outlet of the flow divider 2-5, that is, each first flow channel corresponds to each outlet of the flow divider 2-5. Not only is each first flow channel itself the basic unit for screening and separating droplets / salt particles from the salt cavern gas distribution, but adjacent first flow channels also jointly constitute the functional unit for separating droplets / salt particles; multiple primary screening baffles 2-3 are distributed along the first flow channels. The primary screening baffles 2-3 include droplet screening plates 2-3.1 and flow guide plates 2-3.2. In the first flow channels, droplet screening plates 2-3.1 and flow guide plates 2-3.2 are respectively the cornerstones for the first flow channel itself to achieve the screening and separation of droplets / salt particles and the cornerstones for adjacent first flow channels to jointly achieve the separation of droplets / salt particles; refer to Figure 4 and Figure 5 The droplet sieve plates 2-3.1 on each first flow channel are used for diverting gas from the salt cavern storage ( Figure 4 and Figure 5 The branch gas separated from the (indicated by the orange arrow) Figure 4 and Figure 5 (Indicated by the bright yellow arrow) and the mainstream gas that can pass through the droplet sieve plate 2-3.1 ( Figure 4 and Figure 5 (Indicated by the red arrow in the middle), the droplet sieve plate 2-3.1 guides the branch gas to collide with the branch gas in the adjacent first flow channel; the droplet sieve plate 2-3.1 is also equipped with a function to screen droplets / salt particles from the mainstream gas. Figure 5 The drainage trough 2-7 (indicated by the dark blue arrow) is adjacent to the droplet sieve plate 2-3.1 and is spaced a certain distance from the channel wall of the first flow channel.

[0022] The mechanism of the primary screening baffle 2-3 in the first flow channel is as follows: it can separate droplets / salt particles into three sizes: large, medium, and small. The larger the particle size, the smaller its area-to-volume ratio, and the greater its inertia in the flow of air. The drainage groove 2-7 on the droplet sieve plate 2-3.1 can directly screen out the large-sized droplets / salt particles in the mainstream gas. The droplets gradually condense into water droplets, and the salt particles can dissolve in the droplets or flow with gravity along with the droplets and eventually be discharged. Since the area-to-volume ratio of the smaller droplets / salt particles is also larger, the medium and small-sized droplets / salt particles account for the majority of the side gas. Through the collision of the side gas in the adjacent first flow channel, most of the kinetic energy of the side gas and the droplets / salt particles it contains can be dissipated, and a certain amount of turbulence can be formed, which will cause the medium-sized droplets / salt particles to fall with gravity directly or stick together and be in an easy-to-collect state. Finally, the salt cavern gas undergoes primary screening by the primary screening device 2, resulting in a lower content of large and medium-sized droplets / salt particles in both the mainstream and tributary gases. Since the primary screening device 2 does not require delicate components for droplet / salt particle separation, its maintenance costs are low. Integrating the droplet / salt particle separation equipment provided in this embodiment into the salt cavern gas storage system as a pre-screening device for the fine separation device 4 avoids excessive corrosion of the delicate components within the fine separation device 4. Therefore, it significantly extends the service life of the fine separation device 4 when performing droplet / salt particle separation in the salt cavern gas storage system. Furthermore, since the internal structure of the primary screening device 2 can be manufactured using inexpensive materials and processes, it also offers economic advantages. Example 2

[0023] This embodiment provides a droplet / salt particle separation device for a salt cavern gas storage system. This embodiment is an optimization based on Embodiment 1 to improve the technical effect and refine the technical solution. For details not described in this embodiment, please refer to Embodiment 1.

[0024] refer to Figure 1 and Figure 2 As indicated by the arrows, the salt cavern gas is introduced into the droplet / salt particle separation device through inlet pipe 1-1, exhibiting a high degree of consistency in direction and a relatively high overall flow rate. (Reference) Figure 3 and Figure 4As illustrated by the arrows, in one embodiment, the inlet baffle 2-5.1 serves as a flow divider 2-5. The inlet baffle 2-5.1 is perpendicular to the incoming flow direction of the salt cavern gas, and it divides the salt cavern gas into two streams flowing in opposite directions. Besides serving as a flow divider to provide salt cavern gas for each of the first flow channels, the inlet baffle 2-5.1 also allows the salt cavern gas to impact the inlet baffle 2-5.1 at high speed in a vertical manner. After a directional deflection of over 90°, the streams of salt cavern gas are formed. The inertia of the ultra-large droplets / salt particles is much greater than that of the gas, and they directly impact the inlet baffle 2-5.1 during the flow formation process. Thus, the salt cavern gas completes a droplet / salt particle separation process at the inlet baffle 2-5.1, which is equivalent to a pre-separation relative to the primary screening baffle 2-3 before the salt cavern gas flows into the first flow channel. In addition, the two streams of gas stored in the salt cavern flow in opposite directions, which can increase the directional difference between the subsequent colliding gas streams.

[0025] The closer the primary screening baffle 2-3 is to the inlet of the first flow channel, the higher the content (or concentration) of medium-sized droplets / salt particles in the arriving airflow, but the faster the flow velocity. The velocity difference between the mainstream gas and the direct flow gas has a more significant effect on the separation of large-sized droplets / salt particles. Conversely, the farther the primary screening baffle 2-3 is from the inlet of the first flow channel, the slower the flow velocity and the weaker the velocity difference between the mainstream gas and the direct flow gas on the separation of large-sized droplets / salt particles, but the lower the content of medium-sized droplets / salt particles in the airflow reaching the tail primary screening baffle 2-3. This ensures uniformity in the content of medium-sized droplets / salt particles in each branch airflow.

[0026] As one embodiment, continue to refer to Figure 3 and Figure 4 The arrows indicate that the inlets of the two first flow channels are connected to the outlets of inlet baffles 2-5.1. The two first flow channels and their primary screening baffles 2-3 are symmetrically distributed on both sides of the two inlet baffles 2-5.1 to ensure symmetrical collision of the branch gases separated from the two first flow channels. As mentioned earlier, inlet baffles 2-5.1 split the salt cavern gas into two streams flowing in opposite directions, which corresponds precisely to the symmetrical distribution of the first flow channels on both sides of inlet baffles 2-5.1. The flow states of the salt cavern gas in the two first flow channels are similar, and the primary screening baffles 2-3 on both sides are also symmetrically positioned. This symmetrical design ensures that the branch gases separated from the two first flow channels collide in corresponding positions, improving the collision rate. If like... Figure 4 Furthermore, by aligning the ends of the two first flow channels, the mainstream gas can also collide, which slightly eliminates the kinetic energy of the gas and droplets / salt particles, thus separating the droplets / salt particles from the gas.

[0027] As one embodiment, reference Figure 1 , Figure 2 and Figure 4 The droplet / salt particle separation device provided in this embodiment, as indicated by the arrow, also includes a cylinder 1. The cylinder 1 can form a first flow channel by spatial constraint based on the shape of its wall. Two first flow channels are distributed along the inner walls of both sides of the cylinder 1. Droplet sieve plates 2-3.1 are used to guide the branch gas to the center of the cylinder 1. Guide plates 2-3.2 are spaced a certain distance from the cylinder wall of the cylinder 1 and are distributed along the tangent of the cylinder wall of the cylinder 1. The interface of the cylinder 1 is circular or approximately circular, and a structure can be designed to be directly opposite the ends of the two symmetrical first flow channels mentioned above. In addition, the droplet sieve plates 2-3.1 can guide the branch gas to the center of the cylinder 1. All branch gases collide at the center of the cylinder 1, rapidly consuming kinetic energy and significantly reducing the flow velocity. There are multiple branch gases with different airflow directions at the center of the cylinder 1, greatly reducing the possibility of a single branch gas collision causing deflection and residual kinetic energy. The guide plates 2-3.2 distributed tangentially along the wall of cylinder 1 can promote the flow of the mainstream gas along the designed first flow channel, ensuring that the mainstream gas can enter the next stage droplet screen 2-3.1 after passing through the current stage droplet screen 2-3.1. The guide plates 2-3.2 spaced a certain distance from the wall of cylinder 1 can prevent the mainstream gas from adhering to the boundary layer of cylinder 1.

[0028] As one embodiment, reference Figure 4 and Figure 5 The droplet sieve plate 2-3.1 and the guide plate 2-3.2 can be designed as an L-shaped right-angle plate structure, with the droplet sieve plate 2-3.1 distributed along the radial line of the center of the cylinder 1. The drainage grooves 2.7 on the droplet sieve plate 2-3.1 are distributed parallel to the gravity line, and the width of the grooves matches the interception width of the droplets / salt particles.

[0029] As one embodiment, reference Figure 2 and Figure 3 To constrain the gas flow within the first flow channel, the primary screening device 2 also includes a first annular plate 2-1 and a second annular plate 2-2. The first annular plate 2-1 and the second annular plate 2-2 are spaced a certain distance apart. This space can be used to install a primary screening baffle 2-3 or even an inlet baffle 2-5.1. The inner wall of the cylinder 1, the first annular plate 2-1, and the second annular plate 2-2 form a first flow channel within the cylinder 1. The center of the first annular plate 2-1 and the second annular plate 2-2, formed by the inner wall of the cylinder 1 and the first annular plate 2-1 and the second annular plate 2-2, serves as the outlet for converging the main flow gas and the secondary flow gas. In use, the droplet / salt particle separation device can be erected, as shown in the reference. Figures 1 to 3The large arrow representing gas flow and the small arrow representing liquid droplets flowing with gravity indicate that the gas stored in the salt cavern after primary separation and filtration leaves the middle of the primary screening device 2 and enters the fine separation device 4 for fine screening and separation. The liquid droplets are discharged by dripping through the middle of the primary screening device 2 or other holes by gravity.

[0030] refer to Figure 1 and Figure 2 In one embodiment, the cylinder 1 has a drain port 1-3 on the side of the primary screening device 2 away from the baffle device 3. The liquid droplets drip through the middle or other holes of the primary screening device 2 and are discharged after falling into the drain port 1-3 by gravity. The outer edges of the first annular plate 2-1 and the second annular plate 2-2 are both connected to the inner wall of the cylinder 1. The first annular plate 2-1 gradually moves from the outer edge to the inner edge towards the drain outlet 1-3. Droplets falling on the first annular plate 2-1 drip through the inner edge of the first annular plate 2-1 to the drain outlet 1-3. The second annular plate 2-2 is provided with a drain hole 2-4 leading to the drain outlet 1-3. The drain hole 2-4 is adjacent to the drain trough 2-7. Droplets on the drain trough 2-7 and the second annular plate 2-2 drip through the drain hole 2-4 into the drain outlet 1-3. Example 3

[0031] This embodiment provides a droplet / salt particle separation device for a salt cavern gas storage system. This embodiment is an optimization based on Embodiment 2 to improve the technical effect and refine the technical solution. For details not described in this embodiment, please refer to Embodiment 2.

[0032] This embodiment further designs a fine separation device 4 based on embodiment 2 to improve the separation capability of small-diameter droplets / salt particles.

[0033] refer to Figure 2 In addition to the fine separation device 4, a baffle device 3 is also provided. The fine separation device 4 is connected to the primary screening device 2 through the cylinder 1. The fine separation device obtains salt cavern gas from the primary screening device 2 through suction. However, the salt cavern gas field output by the primary screening device 2 is relatively complex. Therefore, a baffle device 3 is set between the primary screening device 2 and the fine separation device 4 for rectification and airflow uniform distribution, and can also play a certain role in separating droplets / salt particles. The baffle device 3 includes multiple baffles 3-2, which are arranged along the direction of gas flow between the primary screening device 2 and the fine separation device 4. The salt cavern gas is rectified and uniformly distributed along the gaps between adjacent baffles 3-2. The fine separation device 4 includes multiple cyclone separators 4-2. The fine separation of droplets / salt particles using cyclone separators 4-2 has high efficiency.

[0034] However, the salt cavern gas output from the primary screening device 2 exhibits a problem where the airflow velocity increases closer to the center of the cylinder 1 and decreases closer to the wall of the cylinder 1. To ensure sufficient uniformity of the gas received by the fine separation device 4, this embodiment provides two solutions: (1), reference Figure 2 and Figure 8 Multiple cyclone separators 4-2 are distributed in such a way that their inlet surfaces together form a concave envelope surface pointing towards the baffle device 3. This concave envelope surface can be considered as being pressed against the upper surface of the baffle device 3. The closer the cyclone separator 4-2 is to the center of the cylinder 1, the further away it is from the baffle device 3. The closer the salt cavern gas is to the center of the cylinder 1, the faster the gas velocity. Therefore, the closer the cyclone separator 4-2 is to the center of the cylinder 1, the further away it is from the baffle device 3. The longer the path of the salt cavern gas from the baffle device 3 to the corresponding cyclone separator 4-2 is. The closer the salt cavern gas is to the wall of the cylinder 1, the slower the gas velocity. Therefore, the farther the cyclone separator 4-2 is from the center of the cylinder 1, the closer it is to the baffle device 3. The shorter the path of the salt cavern gas to the fine separation device 4 is.

[0035] (2) Reference Figure 2 and Figure 6 Multiple baffles 3-2 are flush with the end near the primary screening device 2, while the end near the fine separation device 4 is arranged in a manner that increases in length as it approaches the center of the cylinder 1. The airflow velocity in the salt cavern is faster closer to the center of the cylinder 1, therefore the baffles 3-2 closer to the center of the cylinder 1 are longer, and the airflow velocity attenuation is more pronounced. Conversely, the airflow velocity in the salt cavern is slower closer to the wall of the cylinder 1, therefore the baffles 3-2 farther from the center of the cylinder 1 are shorter, and the airflow is less susceptible to attenuation by the baffles 3-2. Figure 6 As shown by the middle arrow, the baffle device 3 designed in this way produces a more uniform flow rate of salt cavern gas near the fine separation device 4.

[0036] As one embodiment, reference Figure 7 The baffle 3-2 forms a wave-shaped baffle structure along the direction of gas flow between the primary screening device 2 and the fine separation device 4. Furthermore, the end of the baffle 3-2 closest to the primary screening device 2 can be positioned perpendicular to the first annular plate 2-1 to improve the smoothness of the airflow from the primary screening device 2 entering the baffle 3.

[0037] Liquid droplets falling from the baffle device 3 can also drip onto the first annular plate 2-1 and drip from the inner edge of the first annular plate 2-1 to the drain outlet 1-3 for discharge.

[0038] As one embodiment, reference Figure 8 and Figure 9As a final safeguard in this embodiment, the fine separation device 4 also includes a liquid guide plate 4-1. The surface of the liquid guide plate 4-1 is arranged in a way that the plate is higher as it gets closer to the center of the cylinder 1. The cyclone separator 4-2 is embedded on the liquid guide plate 4-1. The gas outlet and liquid outlet of the cyclone separator 4-2 are both located on the side of the liquid guide plate 4-1 away from the baffle device 3. The gas outlet of the cyclone separator 4-2 is provided with a baffle plate 4-3, which gradually moves from the center to the edge toward the liquid guide plate 4-1.

[0039] As one embodiment, the liquid guide plate 4-1 can be configured as a hemispherical surface facing inward toward the baffle device 3.

[0040] The liquid droplets separated by cyclone separator 4-2 flow out from the liquid outlet. On the side of guide plate 4-1 facing away from baffle device 3, since the surface of guide plate 4-1 is higher closer to the center of cylinder 1, the liquid droplets separated by each cyclone separator 4-2 are far from the center of cylinder 1 and are discharged through the junction of the edge of guide plate 4-1 and cylinder 1. Meanwhile, the droplets / salt particles remaining inside cyclone separator 4-2 are ejected to guide plate 4-1 after impacting baffle plate 4-3. The principle may be similar to the initial treatment of salt cavern gas storage by inlet baffle 2-5.1. (Reference) Figure 1 The airflow ejected from the baffle plate 4-3 is transported to the next process through the exhaust pipe 1-2 opened on the cylinder 1.

[0041] As one embodiment, reference Figure 1 and Figure 8 A first drain hole is provided at the edge of the liquid guide plate 4-1, and the first drain hole is connected to the liquid guide pipe 5. The liquid guide pipe 5 extends all the way to the drain outlet 1-3. (Refer to...) Figure 3 and Figure 4 The first annular plate 2-1 and the second annular plate 2-2 have a first mounting hole 2-6 for the passage of the liquid guide tube 5.

[0042] As one embodiment, reference Figure 6 Multiple baffles 3-2 are mounted on both sides of an annular base plate 3-1, and the outer edge of the annular base plate 3-1 is connected to the inner wall of the cylinder 1. The annular base plate 3-1 has a second mounting hole 3-3 for the passage of the liquid guide pipe 5.

[0043] In one embodiment, a drain port 1-3 and an exhaust pipe 1-2 are respectively opened at both ends of the cylinder 1, and an air inlet pipe 1-1 enters from the side wall of the cylinder 1; Figure 1 and Figure 2As shown, during use, the cylinder 1 is vertical along the gravity line. The fine separation device 4, the baffle device 3, and the primary screening device 2 are arranged from top to bottom along the central axis of the cylinder 1. From top to bottom, they are exhaust pipe 1-2, fine separation device 4, baffle device 3, primary screening device 2, and drain port 1-3. The separated salt cavern gas is transported away from the uppermost exhaust pipe 1-2, and the separated liquid droplets are discharged from the lowermost drain port 1-3.

[0044] It is worth noting that, in order to facilitate observation of the distribution of the primary screening baffles 2-3, Figure 4 The primary screening baffles 2-3 were examined in detail.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention 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 the invention. Furthermore, the terms "first," "second," etc., 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 with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "located in," "equipped with," "located in," "installed," "set," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances. "Hinged connection" includes "rotational connection."

[0047] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A droplet / salt particle separation device for a salt cavern gas storage system, characterized in that, Includes a primary screening device (2), said primary screening device (2) comprising: Diverter (2-5) is used to divert gas from salt caverns; Multiple first flow channels, the inlet of each first flow channel being connected to each outlet of the flow divider (2-5); multiple primary screening baffles (2-3) are distributed along the first flow channels, the primary screening baffles (2-3) including droplet screening plates (2-3.1) and flow guide plates (2-3.2); The droplet sieve plate (2-3.1) on each first flow channel is used to separate the tributary gas and the mainstream gas that can pass through the droplet sieve plate (2-3.1) from the salt cavern gas diversion. The droplet sieve plate (2-3.1) guides the tributary gas to collide with the tributary gas in the adjacent first flow channel. The droplet sieve plate (2-3.1) is also provided with a drain trough (2-7) for screening droplets / salt particles from the mainstream gas. The guide plate (2-3.2) is adjacent to the droplet sieve plate (2-3.1) and is spaced a certain distance from the channel wall of the first flow channel. The diversion component (2-5) is an inlet baffle (2-5.1), which diverts the salt cavern gas into two streams of salt cavern gas flowing in opposite directions. The inlets of the two first flow channels are respectively connected to the outlet of the inlet baffle (2-5.1). The two first flow channels and their primary screening baffle (2-3) are symmetrically distributed on both sides of the inlet baffle (2-5.1) so that the branch gases separated from the two first flow channels collide symmetrically. It also includes a cylinder (1), with two first flow channels distributed along the inner walls of both sides of the cylinder (1), the droplet sieve plate (2-3.1) used to guide the branch gas to the center of the cylinder (1), and the guide plate (2-3.2) spaced a certain distance from the cylinder wall of the cylinder (1) and the guide plate (2-3.2) distributed along the tangent of the cylinder wall of the cylinder (1); The primary screening device (2) further includes a first annular plate (2-1) and a second annular plate (2-2), the first annular plate (2-1) and the second annular plate (2-2) are spaced a certain distance apart, and the inner wall of the cylinder (1), the first annular plate (2-1) and the second annular plate (2-2) form the first flow channel in the cylinder (1).

2. The droplet / salt particle separation device for the salt cavern gas storage system according to claim 1, characterized in that, The inlet baffle (2-5.1) is perpendicular to the inflow direction of the salt cavern gas storage.

3. The droplet / salt particle separation device for the salt cavern gas storage system according to claim 1, characterized in that, It also includes a baffle device (3); The cylinder (1) has a drain outlet (1-3) on the side of the primary screening device (2) away from the baffle device (3). The outer edges of the first annular plate (2-1) and the second annular plate (2-2) are both connected to the inner wall of the cylinder (1). The first annular plate (2-1) gradually moves from the outer edge to the inner edge toward the drain outlet (1-3). The second annular plate (2-2) is provided with a drain hole (2-4) leading to the drain outlet (1-3). The drain hole (2-4) is adjacent to the drain trough (2-7).

4. The droplet / salt particle separation device for the salt cavern gas storage system according to claim 1, characterized in that, It also includes a baffle device (3) and a fine separation device (4), wherein the fine separation device (4) is connected to the primary screening device (2) through the cylinder (1), and the baffle device (3) is located between the primary screening device (2) and the fine separation device (4); the baffle device (3) includes multiple baffles (3-2), which are arranged along the direction of gas flow between the primary screening device (2) and the fine separation device (4); the fine separation device (4) includes multiple cyclone separators (4-2). Multiple cyclone separators (4-2) are distributed in such a way that their inlet surfaces together form a concave envelope that points inward toward the baffle device (3). The closer the cyclone separator (4-2) is to the center of the cylinder (1), the further away it is from the baffle device (3). Alternatively, multiple baffles (3-2) are flush with one end of the primary screening device (2), while the end near the fine separation device (4) is arranged to be longer the closer to the center of the cylinder (1).

5. The droplet / salt particle separation device for the salt cavern gas storage system according to claim 4, characterized in that, The cylinder (1) has a drain outlet (1-3) on the side of the primary screening device (2) away from the baffle device (3). The primary screening device (2) further includes a first annular plate (2-1), which is located on the side of the primary screening device (2) near the baffle device (3). The outer edge of the first annular plate (2-1) is connected to the inner wall of the cylinder (1), and the first annular plate (2-1) gradually moves from the outer edge to the inner edge toward the drain outlet (1-3).

6. The droplet / salt particle separation device for the salt cavern gas storage system according to claim 5, characterized in that, The baffles (3-2) form a wave-shaped baffle structure along the direction of gas flow between the primary screening device (2) and the fine separation device (4).

7. The droplet / salt particle separation device for the salt cavern gas storage system according to claim 4, characterized in that, The fine separation device (4) also includes a liquid guide plate (4-1). The surface of the liquid guide plate (4-1) is arranged so that it is higher as it gets closer to the center of the cylinder (1). The cyclone separator (4-2) is embedded on the liquid guide plate (4-1). The gas outlet and liquid outlet of the cyclone separator (4-2) are both located on the side of the liquid guide plate (4-1) away from the baffle device (3). The gas outlet of the cyclone separator (4-2) is provided with a baffle plate (4-3). The baffle plate (4-3) gradually moves towards the liquid guide plate (4-1) from the center to the edge.

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