A spray type washing and purifying tower for photovoltaic production acid waste gas

Abstract

The utility model discloses a kind of photovoltaic production acidic waste gas spray type washing purification tower, comprising: purification cylinder, spraying assembly, filler layer, liquid storage cavity and air inlet mechanism. Air inlet mechanism is installed on the bottom wall of purification cylinder, and is located in liquid storage cavity, air inlet mechanism includes: air inlet pipe, multiple rotating seats, multiple rotating parts and multiple air jets, air inlet pipe is installed on the bottom wall of purification cylinder, and its one end is fixed with shunt head in purification cylinder, multiple first branch pipes are arranged on the side wall of shunt head, multiple rotating seats are respectively fixed on the outer end of multiple first branch pipes, multiple rotating parts are respectively rotated on multiple rotating seats, multiple second branch pipes are arranged on the side wall of rotating part, multiple air jets are respectively fixed on the outer end of multiple second branch pipes. The utility model is through relevant structure design, effectively improve the contact duration and contact area between waste gas and alkaline solution, to effectively improve the neutralization effect between waste gas and alkaline solution, effectively improve waste gas treatment effect.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, specifically relating to a spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production. Background Technology

[0002] The waste gas generated during photovoltaic production contains large amounts of acidic gases such as hydrogen chloride (HCl), hydrogen fluoride (HF), hydrogen sulfide (H2S), and acid mists from sulfuric acid and nitric acid. Direct emission of these acidic gases into the atmosphere not only leads to acid rain, damages soil and aquatic ecosystems, and exacerbates the greenhouse effect, but also has a strong irritant effect on mucous membranes such as the eyes, nose, and throat, potentially causing respiratory diseases with prolonged exposure. Therefore, photovoltaic waste gas must be treated with a spray-type scrubbing and purification tower to remove acidic substances before being emitted.

[0003] Currently available spray-type scrubbing and purification towers typically use a single suspended nozzle to spray alkaline liquid into the tower, neutralizing the waste gas with the alkaline liquid. However, the contact time between the waste gas and the alkaline liquid is relatively short in this method. When the waste gas flow rate is large and the flow velocity is high, it is easy for the waste gas to be discharged directly into the subsequent treatment process without being completely neutralized by the alkaline liquid, thus reducing the efficiency of waste gas treatment.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production, which is capable of...

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0008] A spray scrubbing and purification tower for acidic waste gas from photovoltaic production includes: a purification cylinder, a spray assembly, a packing layer, a liquid storage chamber, and an air inlet mechanism.

[0009] An exhaust port is provided at the top of the purification cylinder. The spray assembly is installed at the top of the purification cylinder and is used to spray alkaline liquid. The packing layer is installed inside the purification cylinder and located below the spray assembly to increase the contact area between the waste gas and the acidic liquid. The liquid storage chamber is located at the bottom of the purification cylinder.

[0010] The air intake mechanism is installed on the bottom wall of the purification cylinder and located inside the liquid storage chamber. The air intake mechanism includes: an air intake pipe, multiple rotating seats, multiple rotating components, and multiple jet nozzles. The air intake pipe is installed on the bottom wall of the purification cylinder, and a diverter head is fixed to one end of the air intake pipe inside the purification cylinder. Multiple first branch pipes are provided on the side wall of the diverter head. Multiple rotating seats are respectively fixed to the outer ends of multiple first branch pipes. Multiple rotating components rotate on multiple rotating seats. Multiple second branch pipes are provided on the side wall of the rotating components. Multiple jet nozzles are respectively fixed to the outer ends of multiple second branch pipes, and the nozzle angle of the jet nozzles is perpendicular to the axis of the second branch pipes.

[0011] In one embodiment of this utility model, the spray assembly includes: an annular pipe, an infusion pipe, and a booster pump. The annular pipe is installed inside the purification cylinder, and multiple spray seats are provided on the annular pipe, with a spray head fixed to the bottom of each spray seat. The infusion pipe is installed on the outer wall of the purification cylinder, and its two ends are respectively connected to the annular pipe and the bottom of the storage chamber. The booster pump is installed on the infusion pipe. In use, the booster pump draws out the alkaline liquid from the storage chamber and delivers it to the annular pipe through the infusion pipe. The alkaline liquid is then distributed to multiple spray seats in the annular pipe and sprayed downwards through the spray heads.

[0012] In one embodiment of this utility model, a plurality of first mounting members are installed between the annular tube and the inner wall of the purification cylinder, and a plurality of second mounting members are installed between the infusion tube and the outer wall of the purification cylinder. The annular tube is fixed to the inner wall of the purification cylinder by the plurality of first mounting members, and the infusion tube is fixed to the outer wall of the purification cylinder by the plurality of second mounting members.

[0013] In one embodiment of this utility model, a plurality of third mounting components are installed between the air inlet pipe and the bottom wall of the purification cylinder, and the air inlet pipe is fixed to the bottom wall of the purification cylinder by the plurality of third mounting components.

[0014] In one embodiment of this utility model, a fixing ring is fixed on the inner wall of the purification cylinder, and the packing layer is installed on the fixing ring. The fixing ring serves to support the packing layer.

[0015] In one embodiment of this invention, the packing layer includes a mounting ring and multiple retaining plates. The mounting ring is mounted on a fixing ring. Each of the retaining plates is secured within the mounting ring. The retaining plates form a multi-layered porous structure, allowing alkaline liquid to be sprayed onto the retaining plates and adhere to each porous sidewall. When exhaust gas passes through the holes in the retaining plates, it neutralizes the alkaline liquid. The mounting ring is used to secure the multiple retaining plates together.

[0016] In one embodiment of this invention, the honeycomb plate is provided with honeycomb-shaped holes, and the honeycomb-shaped holes between each adjacent pair of honeycomb plates are staggered. The honeycomb-shaped holes increase the contact area between the exhaust gas and the alkaline liquid, and the staggered arrangement of the honeycomb-shaped holes between each adjacent pair of honeycomb plates continuously segments the gas mass, further increasing the contact between the exhaust gas and the sidewalls of the honeycomb-shaped holes.

[0017] In one embodiment of this utility model, multiple guide grooves are chiseled on the outer walls of the plurality of cavity plates, and multiple guide sliders are fixed on the inner wall of the mounting ring. The guide grooves are engaged with the guide sliders. The cavity plates are engaged with the guide sliders through the guide grooves, thereby preventing the cavity plates from rotating.

[0018] In one embodiment of this utility model, a fixing frame is fixed at the opening of the jet head, and a one-way rubber flap is installed on the fixing frame. The outer edge of the one-way rubber flap that contacts the inner wall of the jet head is made of flexible rubber. After the exhaust gas is pressurized in the jet head, it pushes the flexible rubber at the edge of the one-way rubber flap inward and flows out along the gap between the flexible rubber at the edge of the one-way rubber flap and the inner wall of the jet head. When the exhaust gas is not treated, the flexible rubber at the outer edge of the one-way rubber flap is stretched outward and adheres to the inner wall of the jet head, thereby preventing the alkaline liquid in the liquid storage chamber from flowing back into the jet head. In addition, the fixing frame is used for mounting the one-way rubber flap.

[0019] In one embodiment of this utility model, a bolt is threaded onto the fixing frame, and the one-way rubber flap is fixed to the fixing frame by the bolt, with a washer provided between the bolt and the one-way rubber flap. The one-way rubber flap is fixed to the fixing frame by the bolt threaded onto the fixing frame.

[0020] Compared with existing technologies, the spray scrubbing and purification tower for acidic waste gas from photovoltaic production of this utility model effectively improves the contact time and contact area between waste gas and alkaline liquid through relevant structural design, thereby effectively improving the neutralization effect between waste gas and alkaline liquid and effectively improving the waste gas treatment effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of a photovoltaic production acidic waste gas spray scrubbing and purification tower according to one embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the filler layer structure in one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure inside the purification cylinder in one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the air intake mechanism in one embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the rotating component and the jet head in one embodiment of the present invention;

[0027] Figure 6 for Figure 5 The structural diagram shown at point A in the middle.

[0028] Explanation of key figure labels:

[0029] 1-Purification cylinder, 101-Exhaust port, 102-Infusion pipe, 103-Annular pipe, 104-Spray seat, 105-Spray head, 106-First mounting component, 107-Second mounting component, 108-Booster pump, 109-Packaging layer, 110-Fixing ring, 111-Mounting ring, 112-Honeycomb plate, 113-Guide chute, 114-Guide slider, 115-Liquid storage chamber, 2-Air intake mechanism, 201-Air intake pipe, 202-Diverter head, 203-Rotating seat, 204-Rotating component, 205-Air jet head, 206-Fixing frame, 207-One-way rubber flap, 208-Gasket, 209-Bolt, 210-Third mounting component, 211-First branch pipe, 212-Second branch pipe. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0031] like Figures 1 to 6 As shown, an embodiment of the present invention provides a spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production, comprising: a purification cylinder 1, a spray assembly, a packing layer 109, a liquid storage chamber 115, and an air inlet mechanism 2.

[0032] like Figures 1 to 6As shown, an exhaust port 101 is provided at the top of the purification cylinder 1. A spray assembly is installed at the top inside the purification cylinder 1 for spraying alkaline liquid. A packing layer 109 is installed inside the purification cylinder 1 and located below the spray assembly to increase the contact area between the waste gas and the acidic liquid. A liquid storage chamber 115 is located at the bottom inside the purification cylinder 1.

[0033] like Figures 1 to 6 As shown, the air intake mechanism 2 is installed on the bottom wall of the purification cylinder 1 and located in the liquid storage chamber 115. The air intake mechanism 2 includes: an air intake pipe 201, multiple rotating seats 203, multiple rotating parts 204, and multiple jet nozzles 205. The air intake pipe 201 is installed on the bottom wall of the purification cylinder 1, and a diverter head 202 is fixed to one end of the air intake pipe 201 located inside the purification cylinder 1. Multiple first branch pipes 211 are provided on the side wall of the diverter head 202. Multiple rotating seats 203 are respectively fixed to the outer ends of multiple first branch pipes 211. Multiple rotating parts 204 rotate on multiple rotating seats 203 respectively. Multiple second branch pipes 212 are provided on the side wall of the rotating parts 204. Multiple jet nozzles 205 are respectively fixed to the outer ends of multiple second branch pipes 212, and the nozzle angle of the jet nozzles 205 is perpendicular to the axis of the second branch pipes 212.

[0034] When this device is in use, the storage chamber 115 needs to store alkaline liquid, which is sprayed downwards from the top of the purification cylinder 1 through the spray assembly. The alkaline liquid falls onto the packing layer 109 and adheres to the inner wall of the holes in the packing layer 109. Then, the waste gas to be treated is transported from the inlet pipe 201 to the diverter head 202. The waste gas is diverted to multiple rotating seats 203 through multiple first branch pipes 211 on the diverter head 202. Subsequently, the waste gas flows upward into the rotating component 204 and is diverted to multiple jet nozzles 205 through multiple second branch pipes 212. Since the nozzle angle of the jet nozzle 205 is perpendicular to the axis of the second branch pipe 212, the waste gas is sprayed out from the multiple jet nozzles 205, which also drives the rotating component 204 to rotate. When the rotating component 204 rotates, it drives the jet nozzles 205 to rotate through the second branch pipes 212. Therefore, the jet nozzles 205 spray the waste gas in a spiral shape while rotating. After the exhaust gas is ejected, the acidic substances in the exhaust gas undergo a preliminary neutralization reaction in the alkaline liquid in the storage chamber 115. After the exhaust gas flows out of the alkaline liquid in the storage chamber 115, it moves upward to the packing layer 109, where it continues to undergo neutralization in the alkaline liquid in the packing layer 109. After a second neutralization in the reverse direction, the exhaust gas is finally discharged from the exhaust port 101 at the top of the purification cylinder 1 and enters the next step of treatment.

[0035] like Figures 1 to 6As shown, the spray assembly includes: an annular pipe 103, a delivery pipe 102, and a booster pump 108. The annular pipe 103 is installed inside the purification cylinder 1, and multiple spray seats 104 are provided on the annular pipe 103. Each spray seat 104 has a spray head 105 fixed to its bottom. The delivery pipe 102 is installed on the outer wall of the purification cylinder 1, and its two ends are respectively connected to the bottom of the annular pipe 103 and the storage chamber 115. The booster pump 108 is installed on the delivery pipe 102. In use, the booster pump 108 draws out the alkaline solution from the storage chamber 115 and delivers it to the annular pipe 103 through the delivery pipe 102. The alkaline solution is then distributed to the multiple spray seats 104 in the annular pipe 103 and sprayed downwards through the spray heads 105.

[0036] like Figures 1 to 6 As shown, multiple first mounting members 106 are installed between the annular tube 103 and the inner wall of the purification cylinder 1, and multiple second mounting members 107 are installed between the infusion tube 102 and the outer wall of the purification cylinder 1. The annular tube 103 is fixed to the inner wall of the purification cylinder 1 by the multiple first mounting members 106, and the infusion tube 102 is fixed to the outer wall of the purification cylinder 1 by the multiple second mounting members 107. Multiple third mounting members 210 are installed between the air inlet pipe 201 and the bottom wall of the purification cylinder 1, and the air inlet pipe 201 is fixed to the bottom wall of the purification cylinder 1 by the multiple third mounting members 210.

[0037] like Figures 1 to 6 As shown, a fixing ring 110 is fixed on the inner wall of the purification cylinder 1, and the packing layer 109 is installed on the fixing ring 110. The fixing ring 110 is used to support the packing layer 109. The packing layer 109 includes: a mounting ring 111 and multiple retaining plates 112. The mounting ring 111 is installed on the fixing ring 110. The multiple retaining plates 112 are all locked inside the mounting ring 111. The retaining plates 112 form a multi-layered perforated structure, so that the alkaline liquid is sprayed onto the retaining plates 112 and adheres to each perforated sidewall of the retaining plates 112. When the exhaust gas passes through the holes in the retaining plates 112, it is neutralized by the alkaline liquid. The mounting ring 111 is used to fix the multiple retaining plates 112 together.

[0038] like Figures 1 to 6 As shown, the honeycomb plate 112 is provided with honeycomb-shaped holes, and the honeycomb-shaped holes between each two adjacent honeycomb plates 112 are staggered. The honeycomb-shaped holes increase the contact area between the exhaust gas and the alkaline liquid, and the staggered arrangement of the honeycomb-shaped holes between each two adjacent honeycomb plates 112 continuously segments the gas mass, further increasing the contact between the exhaust gas and the sidewalls of the honeycomb-shaped holes. Multiple guide grooves 113 are carved into the outer walls of the multiple honeycomb plates 112, and multiple guide sliders 114 are fixed to the inner wall of the mounting ring 111. The guide grooves 113 are engaged with the guide sliders 114. The honeycomb plate 112 is engaged with the guide sliders 114 through the guide grooves 113, thereby preventing the honeycomb plate 112 from rotating.

[0039] like Figures 1 to 6 As shown, a mounting bracket 206 is fixed at the opening of the jet nozzle 205. A one-way rubber flap 207 is installed on the mounting bracket 206. The outer edge of the one-way rubber flap 207 that contacts the inner wall of the jet nozzle 205 is made of flexible rubber. After the exhaust gas is pressurized in the jet nozzle 205, it pushes the flexible rubber at the edge of the one-way rubber flap 207 inward and flows out along the gap between the flexible rubber at the edge of the one-way rubber flap 207 and the inner wall of the jet nozzle 205. When the exhaust gas is not being treated, the flexible rubber at the outer edge of the one-way rubber flap 207 is stretched outward and adheres to the inner wall of the jet nozzle 205, thereby preventing the alkaline liquid in the liquid storage chamber 115 from flowing back into the jet nozzle 205. The mounting bracket 206 is used to mount the one-way rubber flap 207.

[0040] like Figures 1 to 6 As shown, a bolt 209 is threaded onto the fixing frame 206, and a one-way rubber flap 207 is fixed to the fixing frame 206 by the bolt 209. A washer 208 is provided between the bolt 209 and the one-way rubber flap 207. The one-way rubber flap 207 is threaded onto the fixing frame 206 by the bolt 209, thereby fixing the one-way rubber flap 207 to the fixing frame 206.

[0041] Working principle: When this device is in use, the storage chamber 115 needs to store alkaline liquid. The alkaline liquid in the storage chamber 115 is extracted by the booster pump 108 and transported to the annular pipe 103 through the delivery pipe 102. The alkaline liquid is then distributed to multiple spray seats 104 in the annular pipe 103 and sprayed downwards through the spray head 105. The alkaline liquid falls onto the retaining plate 112 and adheres to each perforated sidewall of the retaining plate 112. When the exhaust gas passes through the holes in the retaining plate 112, it neutralizes the alkaline liquid.

[0042] The exhaust gas to be treated is then conveyed from the inlet pipe 201 to the diverter head 202. The exhaust gas is then diverted through multiple first branch pipes 211 on the diverter head 202 to multiple rotating seats 203, and subsequently flows upward into the rotating component 204, and is further diverted through multiple second branch pipes 212 to multiple jet nozzles 205. As the exhaust gas is ejected from the multiple jet nozzles 205, it also drives the rotating component 204 to rotate. The rotation of the rotating component 204, in turn, drives the jet nozzles 205 to rotate via the second branch pipes 212, thus causing the jet nozzles 205 to rotate while simultaneously ejecting the exhaust gas in a spiral pattern. After the exhaust gas is ejected, the acidic substances in the exhaust gas undergo a preliminary neutralization reaction in the alkaline liquid in the storage chamber 115. After the exhaust gas flows out of the alkaline liquid in the storage chamber 115, it moves upward to the packing layer 109, where it continues to undergo neutralization in the alkaline liquid in the packing layer 109. After a second neutralization in the reverse direction, the exhaust gas is finally discharged from the exhaust port 101 at the top of the purification cylinder 1 and enters the next step of treatment.

[0043] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production, characterized in that, include: A purification cylinder, wherein an exhaust port is provided at the top of the purification cylinder; The spray assembly is installed at the top of the purification cylinder and is used to spray alkaline liquid. The packing layer is installed inside the purification cylinder and located below the spray assembly to increase the contact area between the exhaust gas and the alkaline liquid. The liquid storage chamber is located at the bottom of the purification cylinder; and An air intake mechanism is installed on the bottom wall of the purification cylinder and located inside the liquid storage chamber. The air intake mechanism includes: an air intake pipe, multiple rotating seats, multiple rotating components, and multiple jet nozzles. The air intake pipe is installed on the bottom wall of the purification cylinder, and a diverter head is fixed to one end of the air intake pipe inside the purification cylinder. Multiple first branch pipes are provided on the side wall of the diverter head. Multiple rotating seats are respectively fixed to the outer ends of multiple first branch pipes. Multiple rotating components rotate on multiple rotating seats. Multiple second branch pipes are provided on the side wall of the rotating components. Multiple jet nozzles are respectively fixed to the outer ends of multiple second branch pipes, and the nozzle angle of the jet nozzles is perpendicular to the axis of the second branch pipes.

2. The spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production according to claim 1, characterized in that, The spray assembly includes: A ring-shaped tube is installed inside the purification cylinder. Multiple spray seats are provided on the ring-shaped tube, and a spray head is fixed to the bottom of each spray seat. The infusion tubing is installed on the outer wall of the purification cylinder, with its two ends connected to the annular tube and the bottom of the storage chamber, respectively; and A booster pump is installed on the infusion pipe.

3. The spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production according to claim 2, characterized in that, Multiple first mounting components are installed between the annular tube and the inner wall of the purification cylinder, and multiple second mounting components are installed between the infusion tube and the outer wall of the purification cylinder.

4. The spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production according to claim 1, characterized in that, Multiple third mounting components are installed between the air intake pipe and the bottom wall of the purification cylinder.

5. A spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production according to claim 1, characterized in that, A fixing ring is fixed on the inner wall of the purification cylinder, and the packing layer is installed on the fixing ring.

6. A spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production according to claim 5, characterized in that, The filler layer includes: Mounting ring, installed on the retaining ring; and Multiple retaining plates are all secured within the mounting ring.

7. A spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production according to claim 6, characterized in that, The foyer plate is provided with honeycomb-shaped holes, and the honeycomb-shaped holes between each two adjacent foyer plates are staggered.

8. A spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production according to claim 7, characterized in that, Multiple guide grooves are chiseled on the outer wall of each of the aforementioned plates, and multiple guide sliders are fixed on the inner wall of the mounting ring, with the guide grooves engaging the guide sliders.

9. A spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production according to claim 1, characterized in that, A fixing frame is fixed at the opening of the jet head, and a one-way rubber flap is installed on the fixing frame. The outer edge of the one-way rubber flap that contacts the inner wall of the jet head is made of flexible rubber.

10. A spray-type scrubbing and purification tower for acidic waste gas from photovoltaic production according to claim 9, characterized in that, The fixing frame is threaded with bolts, and the one-way rubber flap is fixed to the fixing frame by bolts, with a washer provided between the bolts and the one-way rubber flap.

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