Water removal device and tail gas treatment equipment

Abstract

The utility model discloses a water removal device and tail gas treatment equipment, the water removal device comprises a barrel body and a guide vane, the barrel body is provided with a gas inlet, a gas outlet and a liquid outlet which are communicated with the internal space, the axial direction of the barrel body is parallel to the vertical direction or forms a preset included angle with the vertical direction, the gas inlet is lower than the gas outlet in the vertical direction, and the guide vane is arranged in the barrel body. The liquid outlet is used for discharging liquid water in the internal space; the guide vane is spirally arranged on the inner side wall, close to the air inlet, of the barrel body to guide tail gas entering the inner space through the air inlet. The water removal device provided by the utility model can reduce liquid water accumulated in the pipeline, so that the tail gas treatment efficiency of the tail gas treatment equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of solar cell production, and in particular to a water removal device and tail gas treatment equipment. Background Art

[0002] During the production of solar cells, the exhaust gas generated will be transmitted through the tail exhaust pipe to the exhaust gas treatment equipment for exhaust gas treatment to reduce the degree of pollution to the environment.

[0003] However, since the exhaust gas contains a large amount of water vapor, a large amount of liquid water will accumulate in the tail pipe during the process of transporting the exhaust gas to the exhaust gas treatment equipment, causing the cross-sectional area of ​​the tail pipe to be reduced, thereby affecting the exhaust gas treatment efficiency of the exhaust gas treatment equipment. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a water removal device and an exhaust gas treatment device, which can reduce the liquid water accumulated in the pipeline, thereby improving the exhaust gas treatment efficiency of the exhaust gas treatment device.

[0005] In order to solve the above technical problems, in a first aspect, the utility model provides a water removal device, the water removal device comprising:

[0006] A barrel body, wherein the barrel body has an air inlet, an air outlet and a liquid outlet connected to the internal space, the axial direction of the barrel body is parallel to the vertical direction or forms a preset angle, the air inlet is lower than the air outlet in the vertical direction, and the liquid outlet is used to discharge liquid water from the internal space;

[0007] A guide vane is spirally arranged on the inner wall of the barrel body close to the air inlet to guide the exhaust gas entering the internal space through the air inlet.

[0008] In a possible implementation, the helix angle of the guide vane is 20°-60°, and / or the angle between the end of the guide vane facing the air inlet and the vertical direction is 0°-60°.

[0009] In a possible implementation, along the vertical direction, the height of the guide vane is b, the height of the barrel is m, and 1 / 3≤b / m≤1 / 2.

[0010] In a possible implementation, along the radial direction of the barrel body, the width of the guide vane is n, the diameter of the barrel body is D, and 0.3≤n / D≤0.4.

[0011] In one possible implementation, the barrel body includes a top wall, a bottom wall, and a side wall sealed between the top wall and the bottom wall, and the axial direction of the barrel body is parallel to the vertical direction, the air inlet is opened on the bottom wall, the air outlet is opened on the top wall, and the liquid outlet is opened on one end of the side wall close to the bottom wall.

[0012] In one possible implementation, the water removal device also includes a guide bend, which is located in the internal space, and one end of the guide bend is connected to the bottom wall and communicated with the air inlet, and the other end extends toward the side wall and has a preset gap between the side wall, so that the side wall guides the exhaust gas ejected from the guide bend, and the end of the guide blade facing the air inlet is located above the end of the guide bend extending toward the side wall, so that the guide blade guides the exhaust gas guided by the side wall.

[0013] In one possible implementation, the diversion bend includes a vertical tube, an arc tube and a transverse tube connected in sequence, the end of the vertical tube away from the arc tube is connected to the bottom wall and is perpendicular to the bottom wall, and the end of the transverse tube away from the arc tube extends toward the side wall.

[0014] In a possible implementation, the diameter of the transverse tube is d, the diameter of the barrel body is D, and 1 / 10≤d / D≤3 / 5.

[0015] In a second aspect, the utility model further provides an exhaust gas treatment device, the exhaust gas treatment device comprising:

[0016] A pre-treatment device, wherein the pre-treatment device is used to pre-treat the tail gas;

[0017] The dewatering device of the first aspect, wherein the dewatering device is connected to the pretreatment device so that the pretreated tail gas enters the dewatering device;

[0018] A processing device, the processing device is used to process the tail gas after being processed by the water removal device;

[0019] A tail exhaust pipe, one end of which is connected to the dewatering device and the other end of which is communicated with the treatment device, so that the tail gas treated by the dewatering device enters the treatment device.

[0020] In a possible implementation, the water removal device includes a plurality of;

[0021] The tail pipe includes multiple branch pipes and a main pipe connected to the multiple branch pipes. The number of the multiple branch pipes is equal to the number of the multiple water removal devices. The end of the branch pipe away from the main pipe is connected to the corresponding water removal device, and the branch pipe is also connected to the processing device.

[0022] Compared with the prior art, this application has at least the following beneficial effects:

[0023] In the present application, since the air inlet is lower than the air outlet in the vertical direction, when the exhaust gas enters the internal space of the barrel body from the air inlet, it can be discharged from the air outlet from bottom to top, which increases the contact area between the exhaust gas and the inner wall of the barrel body, thereby facilitating the downward deposition of larger particles of water vapor in the exhaust gas under the action of their own gravity. In addition, since the guide vanes are spirally arranged on the inner wall of the barrel body, on the one hand, the spirally arranged guide vanes can guide the exhaust gas, which can increase the contact area between the exhaust gas and the guide vanes and slow down the rise of the exhaust gas. speed, thereby facilitating the deposition of larger particles of water vapor in the exhaust gas. On the other hand, the spiral guidance of the guide vane to the exhaust gas can separate the larger particles of water vapor from the exhaust gas for deposition with the help of centrifugal force, and the deposited water vapor will form liquid water and flow to the liquid outlet, thereby discharging the liquid water in the internal space of the barrel body, which can avoid the accumulation of liquid water in the internal space of the barrel body and reduce the water vapor in the exhaust gas as much as possible, thereby avoiding the narrowing of the tail pipe due to the liquid water formed by the water vapor deposition and affecting the treatment efficiency of the exhaust gas treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of the structure of a water removal device provided in an embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the structure of a water removal device provided in an embodiment of the utility model, in which a diversion elbow is provided;

[0027] Figure 3 A schematic diagram of the structure of the water removal device provided in the embodiment of the utility model, which is provided with an air inlet short pipe and an air outlet short pipe;

[0028] Figure 4 A schematic diagram of the structure of the tail gas treatment equipment provided by the embodiment of the utility model;

[0029] Figure 5 A schematic structural diagram of a tail gas treatment device provided in an embodiment of the utility model having multiple water removal devices.

[0030] Description of reference numerals:

[0031] 100-dewatering device; 110-barrel body; 111-inner space; 112-air inlet; 113-air outlet; 114-liquid outlet; 110a-top wall; 110b-bottom wall; 110c-side wall; 120-guide vane; 130-guide elbow; 131-vertical pipe; 132-arc pipe; 133-transverse pipe; 141-inlet short pipe; 142-outlet short pipe;

[0032] 200- tail gas treatment equipment; 210- pretreatment device; 220- tail exhaust pipe; 221- branch pipe; 222- main pipe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0035] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0036] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0038] As described in the background technology of the present application, in the related technology, during the production process of solar cells, for example, the POLY process, that is, the polysilicon material is heated to a high temperature state, and then cooled to form crystals, and finally made into solar cells. After completing the POLY process, the exhaust gas generated will be pre-treated by a pretreatment device, and then transported to the treatment device through a tail exhaust pipe to treat the exhaust gas so that the exhaust gas meets the standards, and finally the exhaust gas that meets the standards will be discharged into the atmosphere.

[0039] However, in the process of the tail pipe transporting the exhaust gas to the treatment device, since there is a certain amount of water vapor in the exhaust gas, the water vapor can be partially liquefied during the transmission process. The liquefied water vapor becomes liquid water, and the liquid water will cause the cross-sectional area of ​​the tail pipe to shrink rapidly, thereby making the tail pipe's ability to transport exhaust gas drop sharply, thereby affecting the exhaust gas treatment efficiency of the exhaust treatment device.

[0040] In order to solve the technical problems mentioned in the background technology, the utility model provides a dewatering device and an exhaust gas treatment equipment. The dewatering device includes a barrel body and a guide vane arranged in the barrel body. The barrel body is provided with an air inlet and an air outlet connected to the internal space, and the air inlet is located below the air outlet in the vertical direction. Therefore, when the exhaust gas enters the internal space through the air inlet, the guide vane can guide the exhaust gas. On the one hand, the contact area between the exhaust gas and the inner wall and the guide vane can be increased, thereby facilitating the deposition of large particles of water vapor. On the other hand, the guide vane is spirally arranged on the inner wall of the barrel body, so that large particles of water vapor can be separated and deposited from the exhaust gas under the action of centrifugal force, and liquid water formed by the deposition of large particles of water vapor can be discharged from the barrel body from the liquid outlet. In this way, it is possible to avoid the deposition of liquid water in the dewatering device and to remove the water vapor in the exhaust gas as much as possible, thereby avoiding the accumulation of more liquid water in the tail pipe to affect the treatment efficiency of the exhaust gas.

[0041] The present application is described in detail below through specific embodiments:

[0042] See also Figure 1The embodiment of the present application provides a water removal device 100, which includes a barrel body 110 and a guide blade 120, wherein the barrel body 110 has an air inlet 112, an air outlet 113 and a liquid outlet 114 connected to the internal space 111, the axial direction of the barrel body 110 is parallel to the vertical direction or at a preset angle, the air inlet 112 is lower than the air outlet 113 in the vertical direction, and the liquid outlet 114 is used to discharge liquid water in the internal space 111; the guide blade 120 is spirally arranged on the inner side wall of the barrel body 110 near the air inlet 112 to guide the exhaust gas entering the internal space 111 through the air inlet 112.

[0043] The diameters of the air inlet 112 and the air outlet 113 are both smaller than the inner diameter of the barrel 110, and the preset angle may be an acute angle. Figure 1 In the direction indicated by the X arrow, the axial direction of the barrel 110 in the above figure is parallel to the vertical direction, so the vertical direction is also Figure 1 The direction indicated by the X arrow.

[0044] In this embodiment, since the air inlet 112 is lower than the air outlet 113 in the vertical direction, when the exhaust gas enters the internal space 111 of the barrel body 110 from the air inlet 112, it can be discharged from the air outlet 113 from bottom to top, which increases the contact area between the exhaust gas and the inner wall of the barrel body 110, thereby facilitating the downward deposition of larger particles of water vapor in the exhaust gas under the action of their own gravity. In addition, since the guide vane 120 is spirally arranged on the inner wall of the barrel body 110, on the one hand, the spirally arranged guide vane 120 can increase the contact area between the exhaust gas and the guide vane 120, while at the same time On the one hand, the rising speed of the exhaust gas is slowed down, thereby facilitating the deposition of larger particles of water vapor in the exhaust gas. On the other hand, the spiral guidance of the guide vane 120 to the exhaust gas can separate the larger particles of water vapor from the exhaust gas for deposition with the help of centrifugal force. The deposited water vapor will form liquid water and flow to the liquid outlet 114, thereby discharging the liquid water in the internal space 111 of the barrel body 110. This can prevent the liquid water from gathering in the internal space 111 of the barrel body 110 and reduce the water vapor in the exhaust gas as much as possible, thereby preventing the liquid water formed by the water vapor deposition from causing the narrowing of the tail pipe 220 and affecting the treatment efficiency of the exhaust gas treatment device.

[0045] In addition, the guide blade 120 is spirally arranged on the inner wall of the barrel body 110 near the air inlet 112, that is to say, the guide blade 120 is not arranged on the inner wall of the entire barrel body 110, but is only arranged on a part of the inner wall of the barrel body 110. In this way, the centrifugal force can be used to separate water vapor from the exhaust gas during the process of the guide blade 120 guiding the exhaust gas, and the contact area between the exhaust gas guided by the guide blade 120 and the inner wall of the barrel body 110 can be increased, thereby facilitating the deposition of water vapor. In addition, the consumables of the guide blade 120 can be reduced, and the production cost and weight of the water removal device 100 can be reduced.

[0046] It is worth noting that in this embodiment, negative pressure is used to make the exhaust gas move along the air inlet 112 toward the air outlet 113 .

[0047] In some possible embodiments, see Figure 1 The helix angle of the guide vane 120 is 20°-60°, and / or the angle between the end of the guide vane 120 facing the air inlet and the vertical direction is 0°-60°.

[0048] The helix angle of the guide vane 120 is the angle between the tangent line at the connection between the guide vane 120 and the inner side wall of the barrel body 110 and the generatrix of the inner side wall of the barrel body 110 passing through the tangent point, that is, Figure 1 The angle shown in θ is the angle between the end of the guide vane facing the air inlet and the vertical direction. Figure 1 The angle represented by α.

[0049] If the helical lead angle of the guide vane 120 is greater than 60°, the spiral trend of the guide vane 120 is steep, which is not conducive to the deceleration of the exhaust gas flow, thereby reducing the flow rate of the exhaust gas flow to make the deposition of water vapor with larger particles in the exhaust gas less effective. Based on this, the helical lead angle of the guide vane 120 is 20°-60°, so that the spiral trend of the guide vane 120 can be flatter, which can reduce the flow rate of the exhaust gas flow, so that water vapor with larger particles can be deposited during the flow guidance of the guide vane 120. Similarly, if the angle between the end of the guide vane 120 facing the air inlet and the vertical direction is greater than 60°, it is not conducive to guiding the exhaust gas flow.

[0050] For example, the helix angle of the guide vane 120 may be 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc. The angle between the end of the guide vane 120 facing the air inlet and the vertical direction may be 1°, 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc.

[0051] In some possible embodiments, see Figure 1 , along the vertical direction, the height of the guide vane 120 is b, the height of the barrel body 110 is m, and 1 / 3≤b / m≤1 / 2.

[0052] If the ratio of the height of the guide blade 120 to the height of the barrel 110 is less than 1 / 3, the length of the guide blade 120 is relatively small, and the guiding effect on the exhaust gas airflow is not obvious, which is not conducive to the separation of water vapor in the exhaust gas. If the ratio of the height of the guide blade 120 to the height of the barrel 110 is greater than 1 / 2, the length of the guide blade 120 is relatively long. Although it can improve the guiding effect on the exhaust gas airflow, it is not conducive to reducing the weight and production cost of the dehydration device 100 itself. Based on this, the ratio of the height of the guide blade 120 to the height of the barrel 110 is made between (1 / 3)-(1 / 2). In this way, the guiding effect of the guide blade 120 on the exhaust gas airflow can be guaranteed and the effect of separating water vapor in the exhaust gas can be improved, while avoiding excessive increase in the production cost and weight of the dehydration device 100.

[0053] In some possible embodiments, along the radial direction of the barrel body 110 , the width of the guide vane 120 is n, the diameter of the barrel body 110 is D, and 0.3≤n / D≤0.4.

[0054] The radial direction of the barrel 110 is Figure 1 The direction is indicated by the Y arrow.

[0055] If the ratio of the width of the guide blade 120 to the diameter of the barrel body 110 is less than 0.3, it means that the width of the guide blade 120 is relatively narrow, and the guiding effect on the exhaust gas airflow is not obvious, so that a large part of the exhaust gas flows directly to the outlet 113 through the air inlet 112 without being guided by the guide blade 120. If the ratio of the width of the guide blade 120 to the diameter of the barrel body 110 is greater than 0.4, it means that the width of the guide blade 120 is relatively wide, which is not conducive to the flow of the exhaust gas airflow in the internal space 111 of the barrel body 110, thereby affecting the exhaust gas treatment efficiency of the exhaust gas treatment device. Based on this, the ratio of the width of the guide blade 120 to the diameter of the barrel body 110 is between 0.3-0.4, which can not only ensure the exhaust gas airflow of the guide blade 120, but also ensure the exhaust gas treatment efficiency of the exhaust gas treatment device.

[0056] In some possible embodiments, see Figure 1 The barrel body 110 includes a top wall 110a, a bottom wall 110b and a side wall 110c sealed between the top wall 110a and the bottom wall 110b, and the axial direction of the barrel body 110 is parallel to the vertical direction, the air inlet 112 is opened on the bottom wall 110b, the air outlet 113 is opened on the top wall 110a, and the liquid outlet 114 is opened on one end of the side wall 110c close to the bottom wall 110b.

[0057] Since the axial direction of the barrel body 110 is parallel to the vertical direction, and the air inlet 112 is opened on the bottom wall 110b, and the air outlet 113 is opened on the top wall 110a, the air inlet 112 can be located at the bottom end of the barrel body 110 and the air outlet 113 can be located at the top end of the barrel body 110. In this way, the flow path of the exhaust gas in the barrel body 110 is extended to the maximum extent, which is conducive to the deposition of larger particles of water vapor in the exhaust gas. In addition, since the liquid outlet 114 is opened at one end of the side wall 110c close to the bottom wall 110b, the liquid water formed by the deposition of water vapor in the internal space 111 of the barrel body 110 can be discharged to the maximum extent.

[0058] In some possible embodiments, see Figure 2 The water removal device 100 also includes a guide bend 130, which is located in the internal space 111, and one end of the guide bend 130 is connected to the bottom wall 110b and communicated with the air inlet 112, and the other end extends toward the side wall 110c and has a preset gap between the side wall 110c, so that the side wall 110c guides the exhaust gas ejected from the guide bend 130, and one end of the guide vane 120 facing the air inlet 112 is located above one end of the guide bend 130 extending toward the side wall 110c, so that the guide vane 120 guides the exhaust gas guided by the side wall 110c.

[0059] Among them, the specific value of the preset gap is not limited, as long as the exhaust gas emitted from the guide bend 130 can be directly sprayed onto the inner wall of the barrel body 110, and the inner wall of the barrel body 110 can guide the airflow of the exhaust gas sprayed on the inner wall.

[0060] In this embodiment, since the guide bend 130 is located in the internal space 111, and one end of the guide bend 130 is connected to the bottom wall 110b and communicated with the air inlet 112, and the other end extends toward the side wall 110c and has a preset gap with the side wall 110c, the exhaust gas passing through the air inlet 112 first passes through the guide bend 130 and is guided to the internal space 111 of the barrel body 110. On the one hand, the flow path of the exhaust gas entering the internal space 111 of the barrel body 110 is increased, which is beneficial to the deposition of large particles of water vapor. On the other hand, since the diameter of the guide bend 130 is much smaller than the diameter of the barrel body 110, the speed of the exhaust gas airflow emitted from the guide bend 130 will drop sharply, and in the process of the exhaust gas airflow colliding with the inner wall of the barrel body 110, larger particles of water vapor can be further deposited, thereby further improving the separation effect of larger particles of water vapor in the exhaust gas.

[0061] In some possible embodiments, see Figure 2The diversion elbow 130 includes a vertical pipe 131, an arc pipe 132 and a transverse pipe 133 connected in sequence. The end of the vertical pipe 131 away from the arc pipe 132 is connected to the bottom wall 110b and is perpendicular to the bottom wall 110b. The end of the transverse pipe 133 away from the arc pipe 132 extends toward the side wall 110c.

[0062] By arranging the arc tube 132 between the vertical tube 131 and the transverse tube 133, the contact area between the exhaust gas flow and the guide bend 130 can be increased when the exhaust gas flows from the vertical tube 131 to the transverse tube 133, thereby facilitating the deposition of water vapor with larger particles in the exhaust gas. In addition, since the end of the transverse tube 133 away from the arc tube 132 extends toward the side wall 110c, the airflow emitted from the transverse tube 133 can be directly projected onto the inner wall of the barrel body 110, thereby improving the guiding effect of the inner wall of the barrel body 110 on the exhaust gas flow.

[0063] Of course, the structure of the diversion elbow 130 is not limited to the above structure. For example, the diversion elbow 130 is a spiral tube, an arc tube, etc.

[0064] Also, optionally, see Figure 3 An air inlet short pipe 141 is provided on the outer side of the bottom wall 110b, and the air inlet short pipe 141 is connected to the air inlet port 112. An air outlet short pipe 142 is provided on the outer side of the top wall 110a, and the air outlet short pipe 142 is connected to the air outlet port 113. Flanges are provided at the end of the air inlet short pipe 141 away from the air inlet port 112 and at the end of the air outlet short pipe 142 away from the air outlet port 113.

[0065] In some possible embodiments, see Figure 3 , the diameter of the transverse tube 133 is d, the diameter of the barrel body 110 is D, 1 / 10≤d / D≤3 / 5.

[0066] If the ratio of the diameter of the transverse tube 133 to the diameter of the barrel body 110 is less than 1 / 10, it means that the diameter of the transverse tube 133 is too small, which is not conducive to the circulation of exhaust gas in the transverse tube 133, thereby affecting the exhaust gas treatment efficiency of the exhaust gas treatment device. If the ratio of the diameter of the transverse tube 133 to the diameter of the barrel body 110 is greater than 3 / 5, then the diameter of the transverse tube 133 is relatively large, and the flow rate of the exhaust gas emitted from the transverse tube 133 entering the internal space 111 of the barrel body 110 will not change too much, which is not conducive to the separation of larger particles of water vapor from the exhaust gas. It can be seen that making the diameter of the transverse tube 133 and the diameter of the barrel body 110 between (1 / 10)-(3 / 5) can not only ensure the exhaust gas treatment efficiency of the exhaust gas treatment device, but also ensure the separation effect of larger particles of water vapor in the exhaust gas.

[0067] See also Figure 4The embodiment of the present application also provides an exhaust gas treatment device 200, which includes a pretreatment device 210, the dehydration device 100 in the above embodiment, a treatment device (not shown in the figure) and a tail exhaust pipe 220, wherein the pretreatment device 210 is used to pretreat the exhaust gas; the dehydration device 100 is connected to the pretreatment device 210 so that the pretreated exhaust gas enters the dehydration device 100; the treatment device is used to treat the exhaust gas treated by the dehydration device 100; one end of the tail exhaust pipe 220 is connected to the dehydration device 100, and the other end is connected to the treatment device, so that the exhaust gas treated by the dehydration device 100 enters the treatment device.

[0068] Among them, the water removal device 100 in the embodiment of the present application can have the same structure as any of the water removal devices 100 in the above embodiments, and can bring the same or similar beneficial effects. For details, please refer to the description in the above embodiments, and the embodiments of the present application will not be repeated here.

[0069] In this embodiment, the pretreatment can pretreat the exhaust gas generated during the solar cell processing process, and then the pretreated exhaust gas is introduced into the treatment device through the tail exhaust pipe 220. Before the tail exhaust pipe 220 introduces the exhaust gas into the treatment device, the dehydration device 100 can separate the water vapor in the exhaust gas and reduce the water vapor in the exhaust gas as much as possible, thereby ensuring the flow rate of the exhaust gas transported by the tail exhaust pipe 220, and further ensuring the exhaust gas treatment efficiency of the exhaust treatment device.

[0070] In some possible embodiments, see Figure 5 , the water removal device 100 includes multiple; the tail pipe 220 includes multiple branch pipes 221 and a main pipe 222 connected to the multiple branch pipes 221, the number of the multiple branch pipes 221 is equal to the number of the multiple water removal devices 100, the end of the branch pipe 221 away from the main pipe 222 is connected to the corresponding water removal device 100, and the branch pipe 221 is also connected to the processing device.

[0071] Since multiple dehydration devices 100 are provided, and each dehydration device 100 is respectively connected to the corresponding branch pipe 221, and the main pipe 222 is respectively connected to multiple branch pipes 221, it is possible to simultaneously dehydrate the exhaust gas in each branch pipe 221, thereby improving the dehydration effect in the exhaust gas, and further improving the treatment effect of the exhaust gas treatment device.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A water removal device, characterized in that: The dewatering device comprises: A barrel body, wherein the barrel body has an air inlet, an air outlet and a liquid outlet connected to the internal space, the axial direction of the barrel body is parallel to the vertical direction or forms a preset angle, the air inlet is lower than the air outlet in the vertical direction, and the liquid outlet is used to discharge liquid water from the internal space; A guide vane is spirally arranged on the inner wall of the barrel body close to the air inlet to guide the exhaust gas entering the internal space through the air inlet.

2. The water removal device according to claim 1, characterized in that: The helix angle of the guide vane is 20°-60°, and / or the angle between one end of the guide vane facing the air inlet and the vertical direction is 0°-60°.

3. The water removal device according to claim 2, characterized in that: Along the vertical direction, the height of the guide vane is b, the height of the barrel body is m, and 1 / 3≤b / m≤1 / 2.

4. The water removal device according to claim 3, characterized in that: Along the radial direction of the barrel body, the width of the guide blade is n, the diameter of the barrel body is D, and 0.3≤n / D≤0.

4.

5. The water removal device according to claim 1, characterized in that: The barrel body includes a top wall, a bottom wall, and a side wall sealed between the top wall and the bottom wall, and the axial direction of the barrel body is parallel to the vertical direction, the air inlet is opened on the bottom wall, the air outlet is opened on the top wall, and the liquid outlet is opened on one end of the side wall close to the bottom wall.

6. The water removal device according to claim 5, characterized in that: The water removal device also includes a guide bend, which is located in the internal space, and one end of the guide bend is connected to the bottom wall and communicated with the air inlet, and the other end extends toward the side wall and has a preset gap between the side wall, so that the side wall can guide the exhaust gas ejected from the guide bend, and the end of the guide blade facing the air inlet is located above the end of the guide bend extending toward the side wall, so that the guide blade can guide the exhaust gas guided by the side wall.

7. The water removal device according to claim 6, characterized in that: The diversion elbow includes a vertical tube, an arc tube and a transverse tube connected in sequence. The end of the vertical tube away from the arc tube is connected to the bottom wall and is perpendicular to the bottom wall. The end of the transverse tube away from the arc tube extends toward the side wall.

8. The water removal device according to claim 7, characterized in that: The diameter of the transverse tube is d, the diameter of the barrel body is D, and 1 / 10≤d / D≤3 / 5.

9. An exhaust gas treatment device, characterized in that: include: A pre-treatment device, wherein the pre-treatment device is used to pre-treat the tail gas; The dewatering device according to any one of claims 1 to 8, wherein the dewatering device is connected to the pretreatment device so that the pretreated tail gas enters the dewatering device; A processing device, the processing device is used to process the tail gas after being processed by the water removal device; A tail exhaust pipe, one end of which is connected to the dewatering device and the other end of which is communicated with the treatment device, so that the tail gas treated by the dewatering device enters the treatment device.

10. The tail gas treatment equipment according to claim 9, characterized in that: The water removal device comprises a plurality of; The tail pipe includes multiple branch pipes and a main pipe connected to the multiple branch pipes. The number of the multiple branch pipes is equal to the number of the multiple water removal devices. The end of the branch pipe away from the main pipe is connected to the corresponding water removal device, and the branch pipe is also connected to the processing device.

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