Hydrofluoric acid waste liquid storage tank for solar cell production process

Abstract

The utility model discloses a hydrofluoric acid waste liquid storage tank for a solar cell production process, which comprises a storage tank shell, the top end face of the storage tank shell is connected with a manhole and a plurality of connecting ports, and the top end face of the storage tank shell is connected with a first leak-proof component and a second leak-proof component. The first anti-leakage assembly comprises a first sealing bottom ring seat and a first sealing cover, the first sealing bottom ring seat and the first sealing cover are matched with the top end face of the storage tank shell, and the first sealing cover is connected with the inner wall end face of the first sealing bottom ring seat in a clamped mode. And the second leakproof assembly comprises a plurality of second sealing bottom ring seats, a plurality of second sealing covers and a plurality of sealing pipes. According to the utility model, the reinforced sealing of the storage tank shell in the use process is realized, and the threat to the body health of personnel after the leakage of liquid between the connecting port and the connecting pipe does not occur easily.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a hydrofluoric acid waste liquid storage tank used in a solar cell production process. Background Art

[0002] Hydrofluoric acid is used in the production process of photovoltaic cells, resulting in fluoride-containing wastewater in the generated wastewater. The fluoride ions need to be treated before they can be discharged. Currently, some companies will treat the waste liquid generated during production and reuse it, and the waste liquid is stored in hydrofluoric acid waste liquid storage tanks.

[0003] The hydrofluoric acid waste liquid storage tank includes a manhole and multiple connection ports. During operation, the hydrofluoric acid waste liquid is transported and output through the connection ports and external connecting pipes. Long-term use or exposure to external forces may easily cause the connection ports and connecting pipes to loosen, resulting in waste liquid leakage, causing damage to the health of surrounding personnel and low safety.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a hydrofluoric acid waste liquid storage tank for a solar cell production process.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide a hydrofluoric acid waste liquid storage tank for a solar cell production process, which can seal and protect the hydrofluoric acid waste liquid storage tank, is not prone to leakage between a connection port and a connection pipe, and has high safety.

[0007] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a hydrofluoric acid waste liquid storage tank for solar cell production process, including a storage tank shell, the top end face of the storage tank shell is connected with a manhole and multiple connection ports, and the top end face of the storage tank shell is connected with a first anti-leakage component and a second anti-leakage component. The first anti-leakage component includes a first sealing bottom ring seat and a first sealing cover, the first sealing bottom ring seat and the first sealing cover match the top end face of the storage tank shell, and the first sealing cover clamps the inner wall end face of the first sealing bottom ring seat. The second anti-leakage component includes multiple second sealing bottom ring seats, multiple second sealing covers and multiple sealing pipes, multiple second sealing bottom ring seats and multiple second sealing covers are matched with the manhole and the connection port, and the second sealing cover clamps the inner wall end face of the second sealing bottom ring seat, so as to realize the enhanced sealing of the storage tank shell during use, and it is not easy to cause a threat to the health of personnel after the liquid leaks between the connection port and the connection pipe.

[0008] In one or more embodiments of the present utility model, the first sealing bottom ring seat is welded to the top end surface of the tank shell, and the first sealing bottom ring seat and the first sealing cover are both provided with a first threaded hole, and the first threaded hole is threadedly connected with a first bolt to achieve enhanced sealing between the first sealing bottom ring seat and the first sealing cover.

[0009] In one or more embodiments of the present invention, a first rotating mechanism is fixedly connected between the first sealing bottom ring seat and the first sealing cover, and a picking ring is welded on the first sealing cover to facilitate the opening and closing of the first sealing cover to operate the tank shell.

[0010] In one or more embodiments of the present invention, a first sealing gasket is bonded to the first sealing cover, the first sealing gasket matches the inner wall end face of the first sealing bottom ring seat, and the first sealing gasket is interference fit with the inner wall end face of the first sealing bottom ring seat to achieve enhanced sealing between the first sealing bottom ring seat and the first sealing cover.

[0011] In one or more embodiments of the utility model, the first sealing cover is provided with limiting grooves matching with multiple manholes and connecting ports, the first sealing cover is welded with a second sealing bottom ring seat matching with multiple limiting grooves, the upper end face of the second sealing cover is welded with a sealing tube, the sealing tube is provided with a first limiting hole, the top end face of the sealing tube is clamped with a third sealing cover, the bottom end face of the third sealing cover is bonded with a second sealing gasket matching with the first limiting hole, and the second sealing gasket is interference-fitted with the first limiting hole. When the connecting tube passes through the sealing tube and the first limiting hole, the second sealing gasket is tightly fitted with the connecting tube, and liquid leakage is not likely to occur.

[0012] In one or more embodiments of the present invention, a second rotating mechanism is fixedly connected between the second sealing bottom ring seat and the second sealing cover, so that the opening and closing of the second sealing cover can be controlled by the second rotating mechanism.

[0013] In one or more embodiments of the present invention, a second threaded hole is provided on the second sealing bottom ring seat and the second sealing cover, and a second bolt is threadedly connected to the second threaded hole to achieve enhanced sealing between the second sealing bottom ring seat and the second sealing cover.

[0014] In one or more embodiments of the utility model, the tank shell includes a cavity, a fireproof structure and an external discharge pipe. The fireproof structure includes a first fireproof layer, a second fireproof layer and a third fireproof layer. The first fireproof layer is filled with rock wool, the second fireproof layer is filled with one or a mixture of magnesium hydroxide and aluminum hydroxide, and the third fireproof layer is filled with calcium silicate fiberboard. A second limiting hole is provided in the third fireproof layer, and the external discharge pipe passes through the second limiting hole. One end face of the external discharge pipe passes through the first sealing bottom ring seat, and the other end face is located at the bottom end face of the tank shell. The external discharge pipe is externally connected to the discharge pipe to achieve fire protection of the external end face of the tank shell and reduce the risk of fire caused by leakage of the tank shell due to fire.

[0015] Compared with the prior art, the utility model provides a hydrofluoric acid waste liquid storage tank for a solar cell production process, which realizes sealing protection of the hydrofluoric acid waste liquid storage tank, is less likely to leak between the connection port and the connection pipe, and has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic structural diagram of a hydrofluoric acid waste liquid storage tank for a solar cell production process in one embodiment of the utility model;

[0018] Figure 2 This is a first use state diagram of a hydrofluoric acid waste liquid storage tank for a solar cell production process in one embodiment of the utility model;

[0019] Figure 3 This is a second usage state diagram of a hydrofluoric acid waste liquid storage tank for a solar cell production process in an embodiment of the utility model;

[0020] Figure 4 A third usage state diagram of a hydrofluoric acid waste liquid storage tank for a solar cell production process in an embodiment of the utility model;

[0021] Figure 5 is a cross-sectional view of the tank shell;

[0022] Description of main reference numerals:

[0023] 1-tank shell, 101-connecting port, 102-manhole, 103-cavity, 104-first fireproof layer, 105-second fireproof layer, 106-third fireproof layer, 2-first anti-leakage component, 201-first sealing bottom ring seat, 202-first sealing cover, 2021-first sealing gasket, 203-first threaded hole, 204-first bolt, 205-first rotating mechanism, 206-taking ring, 3-second anti-leakage component, 301-second sealing bottom ring seat, 302-second sealing cover, 303-sealing tube, 304-second rotating mechanism, 305-third sealing cover, 3051-second sealing gasket, 306-second bolt, 4-external discharge pipe. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] like Figure 1 to Figure 4 As shown, a hydrofluoric acid waste liquid storage tank for a solar cell production process in one embodiment of the utility model includes a tank shell 1, the top end face of the tank shell 1 is connected with a manhole 102 and a plurality of connection ports 101, the top end face of the tank shell 1 is connected with a first anti-leakage component 2 and a second anti-leakage component 3, so as to realize a reinforced seal of the tank shell 1 during use, and it is not easy for liquid to leak between the connection port 101 and the connecting pipe, which may endanger the health of personnel.

[0026] like Figure 1 As shown, the first anti-leakage component 2 includes a first sealing bottom ring seat 201 and a first sealing cover 202. The first sealing bottom ring seat 201 and the first sealing cover 202 match the top end face of the tank shell 1, and the first sealing cover 202 is clamped on the inner wall end face of the first sealing bottom ring seat 201.

[0027] Furthermore, the first sealing bottom ring seat 201 is welded to the top end face of the tank shell 1, and the first sealing cover 202 is clamped on the top end face of the first sealing bottom ring seat 201. The first sealing gasket 2021 is bonded to the first sealing cover 202, and the first sealing gasket 2021 matches the inner wall end face of the first sealing bottom ring seat 201. The first sealing gasket 2021 is interference fit with the inner wall end face of the first sealing bottom ring seat 201, so as to achieve enhanced sealing between the first sealing bottom ring seat 201 and the first sealing cover 202, and liquid leakage is not likely to occur.

[0028] The first sealing bottom ring seat 201 and the first sealing cover 202 are both provided with a first threaded hole 203 , and the first threaded hole 203 is threadedly connected with a first bolt 204 , and the first bolt 204 passes through the first threaded hole 203 to achieve enhanced sealing between the first sealing bottom ring seat 201 and the first sealing cover 202 .

[0029] A first rotating mechanism 205 is fixedly connected between the first sealing bottom ring seat 201 and the first sealing cover 202 to facilitate the opening and closing of the first sealing cover 202 to operate the storage tank shell 1.

[0030] A take-up ring 206 is welded on the first sealing cover 202 , so that the movement of the first sealing cover 202 can be controlled by the take-up ring 206 .

[0031] The second anti-leakage assembly 3 includes a plurality of second sealing bottom ring seats 301, a plurality of second sealing covers 302 and a plurality of sealing tubes 303. The plurality of second sealing bottom ring seats 301 and the plurality of second sealing covers 302 are matched with the manhole 102 and the connecting port 101, and the second sealing cover 302 is clamped with the inner wall end surface of the second sealing bottom ring seat 301. The second sealing bottom ring seat 301 and the second sealing cover 302 are fixed to each other. When the manhole 102 or the connecting port 101 needs to be operated, the second sealing cover 302 can be opened and operated through the limiting groove of the first sealing cover 202.

[0032] The first sealing cover 202 is provided with limiting grooves matching the multiple manholes 102 and the connecting port 101, and the second sealing bottom ring seat 301 matching the multiple limiting grooves is welded on the first sealing cover 202, wherein the projection of the second sealing bottom ring seat 301 on the horizontal plane is larger than the projection of the limiting grooves on the horizontal plane.

[0033] A sealing tube 303 is welded on the upper end surface of the second sealing cover 302. A first limiting hole is opened on the sealing tube 303. After the connection port 101 is connected to the connecting tube, the connecting tube passes through the sealing tube 303 and the first limiting hole to limit and seal the connecting tube.

[0034] The top end surface of the sealing tube 303 is clamped with a third sealing cover 305. The bottom end surface of the third sealing cover 305 is bonded with a second sealing gasket 3051 matching the first limiting hole. The second sealing gasket 3051 is interference-fitted with the first limiting hole to achieve enhanced sealing of the first limiting hole. When the connecting tube passes through the sealing tube 303 and the first limiting hole, the second sealing gasket 3051 is tightly fitted with the connecting tube, and liquid leakage is not likely to occur.

[0035] The height of the sealing tube 303 is higher than the position of the connection between the connecting port 101 and the connecting tube, so as to facilitate sealing.

[0036] It should be noted that the second sealing gasket 3051 and the first sealing gasket 2021 are made of soft materials such as perfluoroether rubber and fluororubber that are resistant to hydrofluoric acid corrosion.

[0037] A second rotating mechanism 304 is fixedly connected between the second sealing bottom ring seat 301 and the second sealing cover 302 , so that the opening and closing of the second sealing cover 302 can be controlled by the second rotating mechanism 304 .

[0038] It should be noted that the second rotating mechanism 304 and the first rotating mechanism 205 both include a rotating shaft and a fixed block, and the opening and closing of the cover body is controlled by the rotating shaft rotating on multiple fixed blocks. This is common knowledge in the field and will not be repeated here.

[0039] The second sealing bottom ring seat 301 and the second sealing cover 302 are both provided with a second threaded hole, and the second threaded hole is threadedly connected with a second bolt 306. The second bolt 306 passes through the second sealing bottom ring seat 301 and the second sealing cover 302 to achieve enhanced sealing between the second sealing bottom ring seat 301 and the second sealing cover 302.

[0040] like Figure 5 As shown, the tank shell 1 includes a cavity 103, an external exhaust pipe 4 and a fireproof structure, so as to achieve fireproofing of the external end surface of the tank shell 1 through the fireproof structure, thereby reducing the risk of fire caused by leakage of the tank shell 1.

[0041] The fireproof structure includes a first fireproof layer 104, a second fireproof layer 105 and a third fireproof layer 106. The sealing layer materials used between the first fireproof layer 104, the second fireproof layer 105 and the third fireproof layer 106 are the same as the material of the tank shell 1, and are all materials that can prevent hydrofluoric acid corrosion.

[0042] The first fireproof layer 104 is filled with rock wool, which has the functions of fireproofing and heat preservation. The second fireproof layer 105 is filled with one or a mixture of magnesium hydroxide and aluminum hydroxide to achieve a flame retardant effect. The third fireproof layer 106 is filled with calcium silicate fiberboard, which can effectively hinder the spread of fire and reduce the fire intensity.

[0043] like Figure 1 and Figure 5 As shown, further, a second limiting hole is opened in the third fireproof layer 106, and the outer discharge pipe 4 passes through the second limiting hole. One side end of the outer discharge pipe 4 is welded to the peripheral end face of the second limiting hole of the first sealing bottom ring seat 201 to achieve the blocking of the second limiting hole. The outer discharge pipe 4 passes through the bottom end face of the third fireproof layer 106, and the outer discharge pipe 4 is externally connected to the discharge pipe.

[0044] When liquid leaks from the connection port 101 and the connection pipe, the leaked liquid enters the third fireproof layer 106 through the second limiting hole and is discharged through the drainage pipe connected to the external drainage pipe 4, which is not likely to cause harm to surrounding personnel and has high safety.

[0045] When using, Figure 3 As shown, when the connection port 101 needs to be connected to the connection pipe, first remove the plurality of second bolts 306 from the second sealing cover 302, open the second sealing cover 302, and operate through the limiting groove on the first sealing cover 202;

[0046] like Figure 2 As shown, the third sealing cover 305 is first sleeved on the connecting pipe, and then the connecting port 101 is connected to the connecting pipe, and then the third sealing cover 305 is interference-fitted with the first limiting hole on the sealing pipe 303 to perform fixed sealing.

[0047] like Figure 4 As shown, when the first sealing cover 202 needs to be opened for maintenance work, the plurality of first bolts 204 can be removed from the first sealing cover 202, and the maintenance work can be carried out after the first sealing cover 202 is opened.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydrofluoric acid waste liquid storage tank for a solar cell production process, comprising a storage tank shell (1), It is characterized in that The top end surface of the storage tank shell (1) is connected to a manhole (102) and a plurality of connection ports (101), and the top end surface of the storage tank shell is connected to a first anti-leakage component and a second anti-leakage component; A first anti-leakage component (2) comprises a first sealing bottom ring seat (201) and a first sealing cover (202), wherein the first sealing bottom ring seat (201) and the first sealing cover (202) match the top end surface of the storage tank shell (1), and the first sealing cover (202) is clamped to the inner wall end surface of the first sealing bottom ring seat (201); The second anti-leakage component (3) comprises a plurality of second sealing bottom ring seats (301), a plurality of second sealing covers (302) and a plurality of sealing tubes (303); the plurality of second sealing bottom ring seats (301) and the plurality of second sealing covers (302) are matched with the manhole (102) and the connecting port (101); the second sealing cover (302) is clamped to the inner wall end surface of the second sealing bottom ring seat (301).

2. A hydrofluoric acid waste liquid storage tank for a solar cell production process according to claim 1, It is characterized in that The first sealing bottom ring seat (201) is welded to the top end surface of the storage tank shell (1), and the first sealing bottom ring seat (201) and the first sealing cover (202) are both provided with a first threaded hole (203), and the first threaded hole (203) is threadedly connected with a first bolt (204).

3. A hydrofluoric acid waste liquid storage tank for a solar cell production process according to claim 2, It is characterized in that A first rotating mechanism (205) is fixedly connected between the first sealing bottom ring seat (201) and the first sealing cover (202), and a taking ring (206) is welded on the first sealing cover (202).

4. A hydrofluoric acid waste liquid storage tank for a solar cell production process according to claim 2 or 3, It is characterized in that A first sealing gasket (2021) is bonded to the first sealing cover (202), and the first sealing gasket (2021) is interference-fitted with the inner wall end surface of the first sealing bottom ring seat (201).

5. A hydrofluoric acid waste liquid storage tank for a solar cell production process according to claim 2, It is characterized in that The first sealing cover (202) is provided with limiting grooves matching the plurality of manholes (102) and the connection ports (101), and a second sealing bottom ring seat (301) matching the limiting grooves is welded on the first sealing cover (202).

6. The hydrofluoric acid waste liquid storage tank for solar cell production process according to claim 1, It is characterized in that A sealing tube (303) is welded to the upper end surface of the second sealing cover (302), a first limiting hole is opened on the sealing tube (303), and a third sealing cover (305) is clamped on the top end surface of the sealing tube (303).

7. A hydrofluoric acid waste liquid storage tank for a solar cell production process according to claim 6, It is characterized in that A second sealing gasket (3051) matching the first limiting hole is bonded to the bottom end surface of the third sealing cover (305), and the second sealing gasket (3051) is interference-fitted with the first limiting hole.

8. A hydrofluoric acid waste liquid storage tank for a solar cell production process according to claim 7, It is characterized in that A second rotating mechanism (304) is fixedly connected between the second sealing bottom ring seat (301) and the second sealing cover (302).

9. A hydrofluoric acid waste liquid storage tank for a solar cell production process according to claim 8, It is characterized in that The second sealing bottom ring seat (301) and the second sealing cover (302) are both provided with a second threaded hole, and the second threaded hole is threadedly connected with a second bolt (306).

10. A hydrofluoric acid waste liquid storage tank for a solar cell production process according to claim 1 or 9, It is characterized in that The storage tank shell (1) comprises: The fireproof structure comprises a first fireproof layer (104), a second fireproof layer (105) and a third fireproof layer (106), wherein the first fireproof layer (104) is filled with rock wool, and the third fireproof layer (106) is filled with calcium silicate fiberboard; An external discharge pipe (4), wherein a second limiting hole is provided in the third fireproof layer (106), an end face on one side of the external discharge pipe (4) passes through the first sealing bottom ring seat (201), and an end face on the other side is located at the bottom end face of the storage tank shell (1), and the external discharge pipe (4) is externally connected to a discharge pipe.

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