Storage tank capable of realizing gas-liquid separation

Abstract

The storage tank capable of achieving gas-liquid separation comprises a storage tank body, a liquid inlet is formed in the side wall of the top of the storage tank body, a spiral pipeline is arranged on the inner side wall of the storage tank body and spirally arranged along the inner side wall of the storage tank body from top to bottom, and the top end of the spiral pipeline communicates with the liquid inlet; a first exhaust port is formed in the spiral pipeline and communicates with the inner space of the storage tank body. A second exhaust port is formed in the top of the storage tank body; and after entering the storage tank body through the liquid inlet, the gas-liquid mixed fluid spirally flows from top to bottom in the spiral pipeline, so that the gas-liquid separation efficiency of the gas-liquid mixed fluid is improved under the action of centrifugal force. According to the storage tank capable of achieving gas-liquid separation, on the premise that the basic storage function of the storage tank is reserved, separation of gas in gas-liquid mixed fluid can be accelerated, and the residence time of the gas in the storage tank is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid separation, and in particular to a storage tank capable of realizing gas-liquid separation. Background Art

[0002] The sterilization technology of electrolyzing seawater to produce sodium hypochlorite is widely used in the disinfection of circulating cooling water in coastal power plants and ballast water in ships. A certain amount of hydrogen will be produced during the electrolysis of seawater. Hydrogen is an explosive and dangerous gas with an explosion limit of 4%-76%.

[0003] To avoid hydrogen accumulation, the electrolytic seawater chlorine production system will transport the sodium hypochlorite solution containing hydrogen to the sodium hypochlorite storage tank through a pipeline. The hydrogen escapes from the liquid by natural diffusion, and then is discharged from the storage tank to the atmosphere by natural hydrogen discharge and fan blowing. This process ensures that the hydrogen concentration is no higher than 1%. Because the hydrogen in the storage tank is discharged by natural diffusion, the gas-liquid mixture needs to stand in the storage tank for a certain period of time before the hydrogen can escape. The efficiency of this gas-liquid separation method is very low, and there is still a certain amount of hydrogen remaining in the liquid, which makes the sodium hypochlorite solution have certain risks when used.

[0004] At present, some technologies realize hydrogen separation by installing a gas-liquid separation device (such as a cyclone separator). Since additional equipment is required, it not only increases the equipment cost, but also increases the space occupied by the equipment, which is not conducive to the compact design of the seawater electrolysis chlorine production system. Summary of the invention

[0005] The purpose of the present invention is to provide a storage tank capable of realizing gas-liquid separation, which can accelerate the separation of gas in a gas-liquid mixed fluid and reduce the residence time of the gas in the storage tank while retaining the basic storage function of the storage tank.

[0006] The present invention provides a storage tank capable of realizing gas-liquid separation, comprising a storage tank body, a liquid inlet is arranged on the side wall at the top of the storage tank body, a spiral pipe is arranged on the inner side wall of the storage tank body, the spiral pipe is spirally arranged from top to bottom along the inner side wall of the storage tank body, the top end of the spiral pipe is communicated with the liquid inlet, the spiral pipe is provided with a first exhaust port, the first exhaust port is communicated with the internal space of the storage tank body; the top of the storage tank body is provided with a second exhaust port;

[0007] After the gas-liquid mixed fluid enters the storage tank body through the liquid inlet, it spirals and flows from top to bottom in the spiral pipe, so as to improve the gas-liquid separation efficiency of the gas-liquid mixed fluid through the action of centrifugal force.

[0008] Furthermore, the cross section of the spiral pipe is a C-shaped structure or a U-shaped structure with a top opening, and the first exhaust port is the top opening of the spiral pipe.

[0009] Furthermore, the spiral pipe is arranged in the upper half of the storage tank body, and the bottom end of the spiral pipe is located above the midline of the storage tank body.

[0010] Furthermore, the inclination angle of the spiral pipe compared to the horizontal direction is 3° to 5°.

[0011] Furthermore, a baffle is provided on the inner side wall of the storage tank body, and the baffle is arranged corresponding to the bottom outlet of the spiral pipe. The baffle is located on the outflow path of the gas-liquid mixed fluid in the spiral pipe.

[0012] Furthermore, a shielding cap is provided directly above the second exhaust port, and the shielding cap is fixedly connected to the tank body; the shielding cap and the second exhaust port are spaced apart vertically, and an exhaust passage communicating with the outside is formed between the shielding cap and the second exhaust port.

[0013] Furthermore, the tank body includes an upper head, a cylinder and a lower head connected in sequence from top to bottom, the cylinder is a cylindrical structure, the liquid inlet is arranged on the side wall of the top of the cylinder, and the spiral pipe is arranged on the inner wall of the cylinder.

[0014] Furthermore, a plurality of liquid drop holes are provided on the bottom wall of the spiral pipe, and the plurality of liquid drop holes are arranged at intervals along the axial direction of the spiral pipe; the gas-liquid mixed fluid in the spiral pipe can drop downward through the liquid drop holes.

[0015] Furthermore, a flow disturbance component is provided in the spiral pipe, and the flow disturbance component is used to disturb the flow of the gas-liquid mixed fluid in the spiral pipe to improve the gas-liquid separation efficiency of the gas-liquid mixed fluid.

[0016] Further, the spoiler assembly includes a spoiler assembly, the spoiler assembly includes a plurality of spoilers, the plurality of spoilers are arranged at intervals along the axial direction of the spiral pipe, and the plurality of spoilers divide the inner cavity of the spiral pipe into a curved and extended serpentine flow channel;

[0017] And / or, the spoiler assembly includes a plurality of impeller assemblies, and the plurality of impeller assemblies are arranged at intervals along the axial direction of the spiral pipe; each impeller assembly includes a rotating impeller and a shaft, and the rotating impeller is rotatably connected to the spiral pipe via the shaft, and the rotating impeller can rotate under the hydraulic action of the gas-liquid mixed fluid in the spiral pipe.

[0018] The storage tank capable of realizing gas-liquid separation provided by the present invention is provided with a spiral pipe on the inner side wall of the storage tank body. When the gas-liquid mixed fluid spirals and flows in the spiral pipe, the gas-liquid mixed fluid can generate centrifugal force. Under the action of the centrifugal force, the gas in the gas-liquid mixed fluid escapes faster, thereby greatly improving the gas-liquid separation efficiency. The storage tank capable of realizing gas-liquid separation can accelerate the separation of gas in the gas-liquid mixed fluid, reduce the residence time of gas in the storage tank, and reduce the residual amount of gas in the gas-liquid mixed fluid, thereby improving safety, while retaining the basic storage function of the storage tank. At the same time, the storage tank capable of realizing gas-liquid separation has a simple structure, is convenient to produce and process, has stable and reliable operation, does not need to additionally provide a gas-liquid separation device (such as a cyclone separator), does not increase the occupied space of the equipment, and does not need to be driven by electricity, thereby saving equipment cost and operating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of a storage tank capable of achieving gas-liquid separation in an embodiment of the present invention.

[0020] Figure 2 Schematic diagram of the relative position relationship between the baffle and the spiral pipe in an embodiment of the present invention.

[0021] Figure 3 Schematic diagram of the installation structure of the spiral pipe and the inner wall of the tank body in an embodiment of the present invention.

[0022] Figure 4 Schematic diagram of the three-dimensional structure of the support block in an embodiment of the present invention.

[0023] Figure 5 FIG. 4 is a schematic cross-sectional view of a spiral pipe in another embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of a spiral pipeline in another embodiment of the present invention.

[0025] Figure 7 FIG. 4 is a top view of a spiral pipe in another embodiment of the present invention.

[0026] Figure 8 FIG. 4 is a top view of a spiral pipe in another embodiment of the present invention.

[0027] Fig. 9 for Figure 8 Schematic diagram of the three-dimensional structure of the middle impeller assembly. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] The terms "first", "second", "third", "fourth" and the like (if any) in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a particular sequence or order.

[0030] like Figures 1 to 3 As shown, an embodiment of the present invention provides a storage tank capable of realizing gas-liquid separation, including a storage tank body 1, the storage tank body 1 being used to store liquid (e.g., sodium hypochlorite solution), that is, the storage tank body 1 has a normal storage function (while ordinary gas-liquid separation devices generally only have a gas-liquid separation function, but not a liquid storage function). A liquid inlet 11 is provided on the side wall at the top of the storage tank body 1, a spiral pipe 2 is provided on the inner side wall of the storage tank body 1, the spiral pipe 2 is fixed on the inner side wall of the storage tank body 1, the spiral pipe 2 is a spiral structure, the spiral pipe 2 is spirally arranged from top to bottom along the inner side wall of the storage tank body 1, and the top of the spiral pipe 2 is connected to the liquid inlet 11. A first exhaust port 21 is provided on the spiral pipe 2, and the first exhaust port 21 is connected to the internal space of the storage tank body 1; a second exhaust port 12 is provided on the top of the storage tank body 1, and the second exhaust port 12 is connected to the internal space of the storage tank body 1, that is, the first exhaust port 21 is connected to the second exhaust port 12 through the internal space of the storage tank body 1. After the gas-liquid mixed fluid enters the storage tank body 1 through the liquid inlet 11, it spirals and flows from top to bottom in the spiral pipe 2, so as to improve the gas-liquid separation efficiency of the gas-liquid mixed fluid through the action of centrifugal force.

[0031] Specifically, the liquid inlet 11 is used to connect with an external liquid inlet pipeline (not shown), for example, the liquid inlet 11 is connected to an electrolytic chlorine production device (not shown) through an external liquid inlet pipeline. When the pressurized gas-liquid mixed fluid (such as electrolyte) in the external liquid inlet pipeline enters the storage tank body 1 through the liquid inlet 11, under the action of its own pressure and gravity, the gas-liquid mixed fluid spirals from top to bottom in the spiral pipe 2 at a certain speed, thereby generating centrifugal force, and under the action of centrifugal force, the gas (such as hydrogen) in the gas-liquid mixed fluid escapes faster; the gas escaping from the spiral pipe 2 is discharged to the internal space of the storage tank body 1 through the first exhaust port 21, and then discharged to the atmosphere through the second exhaust port 12; the liquid in the spiral pipe 2 after gas-liquid separation flows out through the bottom end of the spiral pipe 2 and is stored in the storage tank body 1. The storage tank that can achieve gas-liquid separation can be used not only in the electrolytic chlorine production system, but also in other scenes that require gas-liquid separation and liquid storage.

[0032] The storage tank that can realize gas-liquid separation provided by the embodiment of the present invention is provided with a spiral pipe 2 on the inner side wall of the storage tank body 1. When the gas-liquid mixed fluid swirls and flows in the spiral pipe 2, the gas-liquid mixed fluid can generate centrifugal force. Under the action of the centrifugal force, the gas in the gas-liquid mixed fluid escapes faster, thereby greatly improving the gas-liquid separation efficiency. The storage tank that can realize gas-liquid separation can accelerate the separation of gas in the gas-liquid mixed fluid, reduce the retention time of gas in the storage tank, and reduce the residual amount of gas in the gas-liquid mixed fluid, thereby improving safety. At the same time, the storage tank that can realize gas-liquid separation has a simple structure, convenient production and processing, stable and reliable operation, no need to additionally set up a gas-liquid separation device (such as a cyclone separator), does not increase the occupied space of the equipment (the spiral pipe 2 is located in the storage tank body 1, so it does not increase the occupied space of the equipment), and does not require electric drive, which can save equipment cost and operating cost.

[0033] Furthermore, if Figures 1 to 3 As shown, in this embodiment, the cross section of the spiral pipe 2 is a C-shaped structure with a top opening (not numbered in the figure), and the first exhaust port 21 is the top opening of the spiral pipe 2, that is, the spiral pipe 2 is a non-closed structure, so that the spiral pipe 2 has a normal exhaust function, can prevent the liquid from escaping from the spiral pipe 2, and is convenient for the manufacture of the spiral pipe 2. The cross section of the spiral pipe 2 is a semi-annular structure, which can be a semi-circular ring structure or an arc structure of other angles. Figure 5 As shown, in another embodiment, the cross section of the spiral pipe 2 is a U-shaped structure with a top opening. Of course, the spiral pipe 2 can also be other non-enclosed structures. In other embodiments, the spiral pipe 2 can also be a completely enclosed tubular structure, and the first exhaust port 21 is a plurality of air outlet holes (not shown) arranged on the top wall of the spiral pipe 2, and the plurality of air outlet holes are arranged at intervals along the axial direction of the spiral pipe 2, so that the exhaust function of the spiral pipe 2 can also be achieved.

[0034] Furthermore, if Figure 3 and Figure 4As shown, in this embodiment, the spiral pipe 2 is fixed to the inner side wall of the tank body 1 by welding, and at the same time, the spiral pipe 2 and the inner side wall of the tank body 1 are also connected and fixed by the support block 7. Specifically, the support block 7 is located below the spiral pipe 2, and the support block 7 is provided with an arc surface 71 that imitates the outer wall of the spiral pipe 2. The arc surface 71 is welded and fixed to the outer wall of the spiral pipe 2, and the side wall of the support block 7 is welded and fixed to the inner side wall of the tank body 1, so as to assist in fixing the spiral pipe 2 to the tank body 1. The number of the support blocks 7 is multiple, and the multiple support blocks 7 are arranged at intervals along the axial direction of the spiral pipe 2, and the multiple support blocks 7 are respectively connected to different positions of the spiral pipe 2. When the tank body 1 needs to store corrosive media, this fixing method can facilitate the anti-corrosion treatment of the inside of the tank. Of course, in other embodiments, the spiral pipe 2 and the tank body 1 can also be fixed by other methods, for example, by setting a pipeline bracket (not shown) in the tank body 1 to fix the spiral pipe 2.

[0035] Furthermore, if Figure 1 As shown, in this embodiment, the inclination angle a of the spiral pipe 2 compared to the horizontal direction is 3° to 5°, that is, the spiral rise angle of the spiral pipe 2 is 3° to 5°. Within this range, the gas-liquid mixed fluid in the spiral pipe 2 can have a suitable flow rate, thereby generating a suitable centrifugal force (if the inclination angle a is too small, the flow rate of the gas-liquid mixed fluid in the spiral pipe 2 is small, the centrifugal force generated is small, and the gas-liquid separation effect is reduced; if the inclination angle a is too large, the flow rate of the gas-liquid mixed fluid in the spiral pipe 2 is too large, which will not only cause a large impact on the spiral pipe 2 and affect the life of the spiral pipe 2, but also the gas-liquid mixed fluid may flow out of the spiral pipe 2 in large quantities and fall directly to the bottom of the storage tank body 1, that is, the gas-liquid mixed fluid circulates in the spiral pipe 2 for a short time, the gas-liquid separation effect is reduced, and the stable operation of the equipment is also affected). Of course, in other embodiments, the inclination angle a can also be adjusted according to actual needs.

[0036] Further, in this embodiment, the spiral pipe 2 includes a plurality of (at least three) spiral turns (not numbered in the figure) spaced apart from each other, and the distance h between two adjacent spiral turns of the spiral pipe 2 is 200 mm to 300 mm. The distance h can be calculated and adjusted according to the inner diameter of the storage tank body 1.

[0037] Further, in this embodiment, the diameter of the spiral pipe 2 is consistent with the diameter of the liquid inlet 11. The diameter of the spiral pipe 2 can be set according to actual needs, for example, according to the inner diameter of the storage tank body 1. The larger the inner diameter of the storage tank body 1, the larger the diameter of the spiral pipe 2 can be set accordingly.

[0038] Furthermore, if Figure 1As shown, in this embodiment, the bottom end of the spiral pipe 2 is spaced apart from the inner bottom wall of the storage tank body 1, that is, the bottom end of the spiral pipe 2 does not extend to the bottom of the storage tank body 1. The reason for this arrangement is that the bottom of the storage tank body 1 will store liquid. If the bottom end of the spiral pipe 2 extends below the liquid surface, the gas-liquid mixed fluid will not swirl and flow in the spiral pipe 2 below the liquid surface, but will directly merge with the liquid surface, thereby causing a waste of the spiral pipe 2, and then wasting equipment costs and internal space of the storage tank.

[0039] Furthermore, if Figure 1 As shown, in this embodiment, the spiral pipe 2 is arranged in the upper half of the tank body 1. The height of the top of the spiral pipe 2 is greater than 3 / 4 of the total height of the tank body 1 (the height of the top of the spiral pipe 2 refers to the distance between the top of the spiral pipe 2 and the bottom of the tank body 1; the total height of the tank body 1 refers to the distance between the bottom and the top of the tank body 1), or greater than 4 / 5 of the total height of the tank body 1; the bottom end of the spiral pipe 2 is located above the midline W of the tank body 1 (specifically, the midline W is at 1 / 2 of the liquid level of the tank body 1. In this embodiment, the tank body 1 is symmetrically arranged about the midline W), that is, the height of the bottom end of the spiral pipe 2 is greater than 1 / 2 of the total height of the tank body 1 (the height of the bottom end of the spiral pipe 2 refers to the distance between the bottom end of the spiral pipe 2 and the bottom end of the tank body 1). Such a configuration can not only make the spiral pipe 2 have a sufficient length, but also reduce or avoid the waste of the spiral pipe 2; under the premise of not affecting the gas-liquid separation effect of the spiral pipe 2, at least 1 / 2 of the volume of the storage tank body 1 can be used to store liquid. In other embodiments, the height of the bottom end of the spiral pipe 2 can also be greater than 5 / 8 of the total height of the storage tank body 1, or greater than 1 / 4 of the total height of the storage tank body 1, or greater than 1 / 5 of the total height of the storage tank body 1, etc.

[0040] Furthermore, if Figure 1 and Figure 2 As shown (where Figure 2 (a top view), in this embodiment, a baffle 3 is provided on the inner side wall of the storage tank body 1, and the baffle 3 is fixed on the inner side wall of the storage tank body 1. The baffle 3 is arranged corresponding to the bottom outlet 22 of the spiral pipe 2, and the baffle 3 is located on the outflow path of the gas-liquid mixed fluid in the spiral pipe 2. That is, the baffle 3 is arranged at the bottom end of the spiral pipe 2, and the gas-liquid mixed fluid in the spiral pipe 2 can impact on the baffle 3 when flowing out of the spiral pipe 2 (that is, the baffle 3 can block and baffle the gas-liquid mixed fluid flowing out of the spiral pipe 2), and the baffle 3 is used to disrupt the flow state of the gas-liquid mixed fluid, thereby preventing the gas-liquid mixed fluid from generating vortices in the storage tank body 1 and affecting the stable operation of the equipment; at the same time, the baffle 3 can further disrupt the flow of the gas-liquid mixed fluid, thereby improving the effect of gas-liquid separation.

[0041] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the baffle plate 3 is spaced apart from the bottom outlet 22 of the spiral pipe 2, and when the gas-liquid mixed fluid flowing out of the spiral pipe 2 impacts the baffle plate 3, it can flow downward through the gap between the spiral pipe 2 and the baffle plate 3. Of course, in other embodiments, the baffle plate 3 can also be arranged close to the bottom outlet 22 of the spiral pipe 2.

[0042] Furthermore, if Figure 1 As shown, in this embodiment, the second exhaust port 12 is an open structure, and a shielding cap 4 is provided directly above the second exhaust port 12, and the shielding cap 4 is fixedly connected to the storage tank body 1 (specifically, in this embodiment, the shielding cap 4 is fixedly connected to the storage tank body 1 through a plurality of connecting rods 42); the shielding cap 4 and the second exhaust port 12 are arranged at intervals up and down, and an exhaust channel 41 connected to the outside is formed between the shielding cap 4 and the second exhaust port 12, and the gas in the storage tank body 1 can be discharged to the atmosphere through the second exhaust port 12 and the exhaust channel 41 in sequence. Among them, the shielding cap 4 can shield the second exhaust port 12 to prevent rainwater, debris, etc. from the outside from falling into the storage tank body 1 through the second exhaust port 12.

[0043] Furthermore, if Figure 1 As shown, in this embodiment, a liquid outlet 13 is provided on the side wall at the bottom of the storage tank body 1, and the liquid outlet 13 is used to be connected to an external drainage pipeline (not shown). For example, the liquid outlet 13 is connected to the ballast water treatment pipeline through the external drainage pipeline to discharge the sodium hypochlorite solution stored in the storage tank body 1 to the ballast water treatment pipeline.

[0044] Furthermore, if Figure 1 As shown, in this embodiment, a drain port 14 is provided on the bottom wall of the storage tank body 1, through which all the liquid in the storage tank body 1 can be drained.

[0045] Furthermore, if Figure 1 As shown, in this embodiment, the storage tank body 1 includes an upper head 101, a cylinder 102 and a lower head 103 connected in sequence from top to bottom, the cylinder 102 is a cylindrical structure, the liquid inlet 11 is arranged on the side wall of the top of the cylinder 102, the liquid outlet 13 is arranged on the side wall of the bottom of the cylinder 102, and the spiral pipe 2 is arranged on the inner side wall of the cylinder 102. The second exhaust port 12 is arranged on the upper head 101, and the shielding cap 4 is fixedly connected to the upper head 101; the sewage outlet 14 is arranged on the lower head 103.

[0046] like Figure 6As shown, in another embodiment, a plurality of liquid drop holes 23 are provided on the bottom wall of the spiral pipe 2, and the plurality of liquid drop holes 23 are arranged at intervals along the axial direction of the spiral pipe 2. The gas-liquid mixed fluid in the spiral pipe 2 can fall downward through the liquid drop holes 23, and the gas-liquid mixed fluid can promote the gas-liquid separation of the gas-liquid mixed fluid in the process of falling downward. At the same time, the gas-liquid mixed fluid falling from the upper spiral pipe 2 can fall again into the lower spiral pipe 2, thereby destroying the flow state of the gas-liquid mixed fluid in the lower spiral pipe 2, thereby greatly improving the gas-liquid separation efficiency. It should be noted that the aperture of the liquid drop hole 23 should generally not be set too large to avoid too much gas-liquid mixed fluid falling from the liquid drop hole 23 and affecting the stable operation of the equipment.

[0047] like Figure 7 and Figure 8 As shown, in another embodiment, a spoiler component is provided in the spiral pipe 2, and the spoiler component is used to interfere with the flow of the gas-liquid mixed fluid in the spiral pipe 2 to improve the gas-liquid separation efficiency of the gas-liquid mixed fluid (it should be noted that the spoiler component and the liquid drop hole 23 can be set at the same time, or they can be set separately).

[0048] like Figure 7 As shown, as an embodiment, the spoiler assembly includes a spoiler assembly 5, and the spoiler assembly 5 includes a plurality of spoilers, and the plurality of spoilers are arranged at intervals along the axial direction of the spiral pipe 2, and the plurality of spoilers divide the inner cavity of the spiral pipe 2 into a curved and extended serpentine flow channel 20. Since the gas-liquid mixed fluid flows along the serpentine flow channel 20 in the spiral pipe 2, the flow state of the gas-liquid mixed fluid is destroyed, thereby improving the gas-liquid separation efficiency of the gas-liquid mixed fluid.

[0049] Specifically, the plurality of spoilers include a plurality of first spoilers 51 and a plurality of second spoilers 52, and the plurality of first spoilers 51 and the plurality of second spoilers 52 are alternately arranged along the axial direction of the spiral pipe 2. Along the radial direction of the tank body 1, the side walls of the spiral pipe 2 on opposite sides are respectively the first side wall 2A and the second side wall 2B. The first spoilers 51 and the second spoilers 52 are both arranged roughly along the radial direction of the tank body 1, one end of each first spoiler 51 is connected to the first side wall 2A of the spiral pipe 2, and the other end of each first spoiler 51 is spaced from the second side wall 2B of the spiral pipe 2; one end of each second spoiler 52 is connected to the second side wall 2B of the spiral pipe 2, and the other end of each second spoiler 52 is spaced from the first side wall 2A of the spiral pipe 2, thereby forming a serpentine flow channel 20. It should be noted that the spoilers should not be arranged too densely to avoid significantly affecting the flow rate of the gas-liquid mixed fluid (the spoilers will reduce the flow rate of the gas-liquid mixed fluid; if the spoilers are arranged too densely, the flow rate of the gas-liquid mixed fluid will be greatly reduced, which will in turn reduce the gas-liquid separation efficiency).

[0050] like Figure 8 and Fig. 9 As shown, as another embodiment, the flow disturbance assembly includes a plurality of impeller assemblies 6, and the plurality of impeller assemblies 6 are arranged at intervals along the axial direction of the spiral pipe 2; each impeller assembly 6 includes a rotating impeller 61 and a shaft 62, and the rotating impeller 61 is rotatably connected to the spiral pipe 2 through the shaft 62 (specifically, the rotating impeller 61 is rotatably connected to the shaft 62; and / or, the shaft 62 is rotatably connected to the spiral pipe 2. The shaft 62 can be connected to the bottom wall of the spiral pipe 2, or to the side wall of the spiral pipe 2, as long as the rotating impeller 61 can be rotated), the rotating impeller 61 can rotate under the hydraulic action of the gas-liquid mixed fluid in the spiral pipe 2 (that is, the gas-liquid mixed fluid impacts the rotating impeller 61 during the flow process, so that the rotating impeller 61 rotates), and the rotating impeller 61 destroys the flow state of the gas-liquid mixed fluid during the rotation process, thereby improving the gas-liquid separation efficiency of the gas-liquid mixed fluid. It should be noted that the impeller assemblies 6 should not be arranged too densely to avoid greatly affecting the flow rate of the gas-liquid mixed fluid.

[0051] The spoiler assembly 5 and the impeller assembly 6 can be provided at the same time or separately. Of course, in other embodiments, the spoiler assembly can also be other spoiler structures.

[0052] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A storage tank capable of achieving gas-liquid separation, characterized in that: The invention comprises a storage tank body (1), wherein a liquid inlet (11) is provided on the side wall at the top of the storage tank body (1), a spiral pipe (2) is provided on the inner side wall of the storage tank body (1), the spiral pipe (2) is spirally arranged from top to bottom along the inner side wall of the storage tank body (1), the top end of the spiral pipe (2) is communicated with the liquid inlet (11), the spiral pipe (2) is provided with a first exhaust port (21), the first exhaust port (21) is communicated with the internal space of the storage tank body (1); and a second exhaust port (12) is provided on the top of the storage tank body (1); After the gas-liquid mixed fluid enters the storage tank body (1) through the liquid inlet (11), it spirals and flows from top to bottom in the spiral pipe (2), so as to improve the gas-liquid separation efficiency of the gas-liquid mixed fluid through the action of centrifugal force.

2. The storage tank capable of achieving gas-liquid separation as claimed in claim 1, characterized in that: The cross section of the spiral pipe (2) is a C-shaped structure or a U-shaped structure with a top opening, and the first exhaust port (21) is the top opening of the spiral pipe (2).

3. The storage tank capable of achieving gas-liquid separation as claimed in claim 1, characterized in that: The spiral pipe (2) is arranged in the upper part of the storage tank body (1), and the bottom end of the spiral pipe (2) is located above the midline (W) of the storage tank body (1).

4. The storage tank capable of achieving gas-liquid separation as claimed in claim 1, characterized in that: The inclination angle (a) of the spiral pipe (2) relative to the horizontal direction is 3° to 5°.

5. The storage tank capable of achieving gas-liquid separation as claimed in claim 1, characterized in that: A baffle (3) is provided on the inner side wall of the storage tank body (1), and the baffle (3) is arranged corresponding to the bottom outlet (22) of the spiral pipe (2). The baffle (3) is located on the outflow path of the gas-liquid mixed fluid in the spiral pipe (2).

6. The storage tank capable of achieving gas-liquid separation as claimed in claim 1, characterized in that: A shielding cap (4) is provided directly above the second exhaust port (12), and the shielding cap (4) is fixedly connected to the storage tank body (1); the shielding cap (4) and the second exhaust port (12) are arranged with an interval up and down, and an exhaust passage (41) communicating with the outside is formed between the shielding cap (4) and the second exhaust port (12).

7. The storage tank capable of achieving gas-liquid separation as claimed in claim 1, characterized in that: The storage tank body (1) comprises an upper head (101), a cylinder (102) and a lower head (103) which are connected in sequence from top to bottom; the cylinder (102) is a cylindrical structure; the liquid inlet (11) is arranged on the side wall at the top of the cylinder (102); and the spiral pipe (2) is arranged on the inner side wall of the cylinder (102).

8. The storage tank capable of achieving gas-liquid separation as claimed in claim 1, characterized in that: A plurality of liquid drop holes (23) are provided on the bottom wall of the spiral pipe (2), and the plurality of liquid drop holes (23) are arranged at intervals along the axial direction of the spiral pipe (2); the gas-liquid mixed fluid in the spiral pipe (2) can drop downwards through the liquid drop holes (23).

9. The storage tank capable of achieving gas-liquid separation according to any one of claims 1 to 8, characterized in that: A flow disturbance component is provided in the spiral pipe (2), and the flow disturbance component is used to disturb the flow of the gas-liquid mixed fluid in the spiral pipe (2) so as to improve the gas-liquid separation efficiency of the gas-liquid mixed fluid.

10. The storage tank capable of achieving gas-liquid separation as claimed in claim 9, characterized in that: The spoiler assembly comprises a spoiler assembly (5), wherein the spoiler assembly (5) comprises a plurality of spoilers, wherein the plurality of spoilers are arranged at intervals along the axial direction of the spiral pipe (2), and the plurality of spoilers divide the inner cavity of the spiral pipe (2) into a curved and extended serpentine flow channel (20); And / or, the flow disturbance component comprises a plurality of impeller components (6), and the plurality of impeller components (6) are arranged at intervals along the axial direction of the spiral pipe (2); each impeller component (6) comprises a rotating impeller (61) and a shaft (62), and the rotating impeller (61) is rotatably connected to the spiral pipe (2) via the shaft (62), and the rotating impeller (61) can rotate under the hydraulic action of the gas-liquid mixed fluid in the spiral pipe (2).

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