A heptafluorobutyryl fluoride electrolytic cell that is easy to maintain

Abstract

The present invention discloses a heptafluorobutyryl fluoride electrolytic cell that is easy to maintain, comprising: an electrolytic cell body, a large electrolytic cell cover detachably mounted on the top, corresponding plate covers detachably mounted at intervals on the large electrolytic cell cover, anode columns and cathode columns extending into the electrolytic cell body are respectively fixedly connected on the plate covers; a connection mechanism, used to install the large electrolytic cell cover to the top of the electrolytic cell body; a feeding mechanism, corresponding isolation plates are respectively fixedly connected between two adjacent plate covers, the feeding mechanism comprises a collecting plate fixedly connected to the bottom of the space formed by the isolation plate and the electrolytic cell body, corresponding feeding holes are respectively arranged in the middle of the collecting plate, and corresponding plugs are respectively installed at the feeding holes that can be lifted and lowered. The present invention can facilitate maintenance operations and realize the zoning design of the electrolytic cell body, and the maintenance process has no influence on the operation of other normal modules of the electrolytic cell body.

Description

Technical Field

[0001] The invention relates to the technical field of electrolytic cell equipment for producing heptafluorobutyryl fluoride, and in particular to a heptafluorobutyryl fluoride electrolytic cell which is easy to maintain. Background Art

[0002] Heptafluorobutyryl fluoride is a colorless to pale yellow liquid with low flammability. It is relatively stable at room temperature, but should be avoided from contact with strong oxidants or strong bases. Heptafluorobutyryl fluoride is an important chemical intermediate, mainly used in organic synthesis reactions, and can also be used as a surfactant in electronic materials to improve coating and adhesion properties.

[0003] The existing technology for preparing heptafluorobutyryl fluoride adopts a direct electrolytic fluorination method, where n-butyryl chloride and hydrogen fluoride are fed into an electrolytic cell with low-voltage direct current to generate free fluorine atoms that directly replace the hydrogen atoms and chlorine atoms in n-butyryl chloride, and then undergo a simple purification process to obtain the heptafluorobutyryl fluoride product. However, during the operation of the electrolytic cell, it is inevitable that the plate will corrode and be damaged, requiring the entire electrolytic cell to be shut down for maintenance, and drainage and replacement are required before maintenance, which affects production.

[0004] Therefore, the research purpose of the present invention is to design a heptafluorobutyryl fluoride electrolytic cell that is easy to maintain and can facilitate maintenance operations and can significantly improve the detachable installation speed of the electrolytic cell cover and the electrolytic cell body during the maintenance process on the basis of ensuring the sealing effect. Summary of the invention

[0005] In view of the technical problems existing in the above-mentioned prior art, the present invention provides a heptafluorobutyryl fluoride electrolytic cell which is easy to maintain. The heptafluorobutyryl fluoride electrolytic cell which is easy to maintain can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the present invention is:

[0007] A heptafluorobutyryl fluoride electrolytic cell that is easy to maintain, comprising:

[0008] An electrolytic cell body, wherein a corresponding electrolytic cell cover is detachably mounted on the top of the electrolytic cell body, and corresponding electrode cover plates are detachably mounted on the electrolytic cell cover plates at intervals, and an anode column and a cathode column extending into the electrolytic cell body are respectively fixedly mounted on the electrode cover plates;

[0009] The connecting mechanism is used to install the large cover of the electrolytic cell to the top of the electrolytic cell body, and the corresponding mounting ridges are fixedly arranged at the periphery of the electrolytic cell body, and the connecting mechanism includes a plurality of groups of fixing parts fixedly connected to the mounting ridges, and the fixing parts are respectively provided with corresponding limit blocks which can be laterally movably inserted by keyway matching, and the opposite sides of the limit blocks installed in the same group of fixing parts are respectively arranged in a truncated cone shape, and the centers of the limit blocks in the same group of fixing parts are respectively screwed to the corresponding double-rotation screws, and the double-rotation screws located on the same side of the electrolytic cell body are respectively fixed to form a whole by welding; the periphery of the large cover of the electrolytic cell is respectively fixed downward with corresponding C-shaped buckle plates, and after the large cover of the electrolytic cell is covered on the electrolytic cell body, the C-shaped buckle plates are respectively sleeved on the double-rotation screws between the same group of fixing parts, and the double-rotation screws are rotated to drive the limit blocks in each group of fixing parts to move to the opposite side, so that the truncated cone parts of the limit blocks respectively press downward and fix the corresponding C-shaped buckle plates;

[0010] A material discharge mechanism, wherein corresponding isolation plates are respectively fixedly connected to the electrolytic cell body between two adjacent electrode cover plates, and the bottom of the isolation plates is spaced apart from the bottom of the electrolytic cell body. The material discharge mechanism comprises a collecting plate fixedly connected to the bottom of the space formed by the isolation plates and the electrolytic cell body, and corresponding material discharge holes are respectively arranged in the middle of the collecting plate, and corresponding plug bodies are respectively installed at the material discharge holes in a liftable manner, and the plug bodies are lifted and lowered by corresponding driving mechanisms.

[0011] The driving mechanism includes a bellows that is sealed and connected to the bottom of the electrolytic cell body. The end of the bellows that is not connected to the electrolytic cell body is fixedly connected to the corresponding plug body. The bellows are respectively connected to corresponding inflation pipes outwardly. The air inlet end of the inflation pipe is connected to an external nitrogen source. The inflation pipe is connected to a pressure relief pipe equipped with a pressure relief valve.

[0012] The plug body comprises a bottom cover, and the bottom cover is upwardly sealed and connected to a corresponding upper cover through a corresponding elastic member.

[0013] A pressure sensor with a detection end abutting against the bottom side of the upper cover is fixedly mounted on the bottom cover. When the pressure value detected by the pressure sensor is greater than F1, an external nitrogen source is pumped into the bellows through the inflation pipe to lift the plug body upward; then, the pressure relief valve is opened to release the pressure; the inflation and pressure relief are repeated to discharge the products deposited and collected in the aggregate plate; when the pressure value detected by the pressure sensor is less than F2, the pressure relief valve is opened to release the pressure and no more inflation is performed.

[0014] The bottom of the electrolytic cell body is arranged obliquely, and a discharge pipe with a discharge valve installed is fixedly connected to the bottom of the electrolytic cell body.

[0015] The middle part of the outer side of the C-shaped buckle plate is fixedly connected with a corresponding reinforcing rib plate.

[0016] The electrode plate cover is respectively fixed to the electrolytic cell cover by a plurality of locking bolts.

[0017] The electrolytic cell cover and the plate cover are respectively and diagonally fixedly connected with corresponding lifting ear plates.

[0018] The electrolytic cell body is fixedly mounted on a corresponding bracket.

[0019] The ends of the double-rotation screws located on the same side of the electrolytic cell body are respectively fixed with corresponding nuts.

[0020] Advantages of the present invention:

[0021] 1) The present invention cooperates with the C-shaped buckle plate fixed at the periphery of the electrolytic cell cover through the connection mechanism to achieve: the electrolytic cell cover with the largest connection area is quickly detachably installed with the electrolytic cell body, so as to facilitate maintenance work; and the anode column and the cathode column are modularly installed through the plate cover plate to facilitate the separate replacement of the anode column and the cathode column during the maintenance work; and the present invention performs a partition design on the electrolytic cell body, and the separate replacement of the anode and cathode modules during the maintenance process has no effect on the operation of other normal modules of the electrolytic cell body.

[0022] In particular, through the setting of the connection mechanism of the present invention, the present invention can quickly and conveniently disassemble and install the large cover of the electrolytic cell. Compared with the traditional locking installation of many locking bolts, the present invention can obviously perform maintenance operations more quickly.

[0023] 2) The present invention can isolate the separated electrolysis areas through the setting of the unloading mechanism to prevent the electrolysis processes in different electrolysis areas from affecting each other; when unloading, the external nitrogen source is pumped into the bellows through the inflation pipe to lift the plug upward; then, the pressure relief valve is opened to release the pressure to make the plug fall back; the inflation and pressure relief are repeated to quickly and smoothly discharge the products deposited and collected in the collecting plate, which is very convenient.

[0024] 3) The present invention further configures the plug body to be a bottom cover and an upper cover elastically connected by an elastic member, and then a pressure sensor with a detection end abutting against the bottom side of the upper cover is fixedly installed on the bottom cover. When the pressure value detected by the pressure sensor is greater than F1, it can be judged that the amount of products deposited and collected in the aggregate plate has reached the design value, and at this time, the discharge operation can be carried out; when the pressure value detected by the pressure sensor during discharge is less than F2, it can be judged that the products deposited and collected in the aggregate plate have been basically discharged, and at this time, the discharge operation can be stopped. In this way, the discharge cycle is effectively and accurately controlled to improve the use effect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the bottom structure of the present invention.

[0027] Figure 3 It is a cross-sectional view of the present invention.

[0028] Figure 4 It is a structural diagram of the connection mechanism.

[0029] Figure 5 It is a partial cross-sectional view of the connection mechanism.

[0030] Figure 6 for Figure 3 A partial enlarged view of part A in .

[0031] In the accompanying drawings: electrolytic cell body 1, mounting flange 101, electrolytic cell cover 2, plate cover 3, anode column 4, cathode column 5, connecting mechanism 6, fixing part 601, limit block 602, double-rotation screw 603, C-shaped buckle plate 7, unloading mechanism 8, collecting plate 801, plug body 802, bottom cover 8021, elastic part 8022, upper cover 8023, driving mechanism 9, bellows 901, inflation pipe 902, pressure relief pipe 903, pressure relief valve 10, pressure sensor 11, discharge pipe 12, discharge valve 13, locking bolts 14, lifting ear plate 15, bracket 16, nut 17, isolation plate 18. DETAILED DESCRIPTION

[0032] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the embodiments in conjunction with the accompanying drawings:

[0033] refer to Figure 1-6 , a heptafluorobutyryl fluoride electrolytic cell that is easy to maintain, comprising:

[0034] An electrolytic cell body 1, wherein a corresponding electrolytic cell cover 2 is detachably mounted on the top of the electrolytic cell body 1, and corresponding electrode cover plates 3 are detachably mounted on the electrolytic cell cover 2 at intervals, and an anode column 4 and a cathode column 5 extending into the electrolytic cell body 1 are respectively fixedly connected to the electrode cover plates 3;

[0035] The connection mechanism 6 is used to install the electrolytic cell cover 2 to the top of the electrolytic cell body 1. The periphery of the electrolytic cell body 1 is fixedly provided with a corresponding mounting flange 101. The connection mechanism 6 includes a plurality of sets of fixing members 601 fixedly connected to the mounting flange 101. The fixing members 601 are respectively provided with corresponding limit blocks 602 which can be laterally movably inserted through keyway matching. The opposite sides of the limit blocks 602 installed in the same set of fixing members 601 are respectively arranged in a truncated cone shape, and the centers of the limit blocks 602 in the same set of fixing members 601 are respectively screwed to the corresponding double-rotation screws. On the rod 603, the double-rotation screws 603 located on the same side of the electrolytic cell body 1 are fixedly connected to form a whole by welding; the periphery of the electrolytic cell cover 2 is respectively fixedly connected downward with corresponding C-shaped buckle plates 7, and after the electrolytic cell cover 2 is covered on the electrolytic cell body 1, the C-shaped buckle plates 7 are respectively sleeved on the double-rotation screws 602 between the same group of fixing parts 601, and the double-rotation screws 602 are rotated to drive the limit blocks 602 in each group of fixing parts 601 to move to the opposite side, so that the truncated cone parts of the limit blocks 602 respectively form downward tight fixation on the corresponding C-shaped buckle plates 7;

[0036] A material discharge mechanism 8, wherein corresponding isolation plates 18 are respectively fixedly connected to the electrolytic cell body 1 between two adjacent electrode cover plates 3, and the bottom of the isolation plates 18 is spaced apart from the bottom of the electrolytic cell body 1, and the material discharge mechanism 8 comprises a collecting plate 801 fixedly connected to the bottom of the space formed by the isolation plates 18 and the electrolytic cell body 1, and corresponding material discharge holes are respectively arranged in the middle of the collecting plate 801, and corresponding plug bodies 802 are respectively installed at the material discharge holes so as to be liftable, and the plug bodies 802 are lifted and lowered by corresponding driving mechanisms 9.

[0037] The present invention cooperates with the C-shaped buckle plate 7 fixed to the periphery of the electrolytic cell cover 2 through the connection mechanism 6 to achieve: quickly and detachably install the electrolytic cell cover 2 with the largest connection area and the electrolytic cell body 1, so as to facilitate maintenance operations; and modularly install the anode column 4 and the cathode column 5 through the plate cover 3, so as to facilitate the individual replacement of the anode column 4 and the cathode column 5 during the maintenance operation; and the present invention performs a partition design on the electrolytic cell body 1, and the individual replacement of the anode and cathode modules during the maintenance process has no effect on the operation of other normal modules of the electrolytic cell body 1.

[0038] In particular, through the arrangement of the connection mechanism 6 of the present invention, the present invention can quickly and conveniently disassemble and install the electrolytic cell cover 2. Compared with the traditional locking installation of many locking bolts, the present invention can obviously perform maintenance operations more quickly.

[0039] The driving mechanism 9 includes a bellows 901 that is sealed and connected to the bottom of the electrolytic cell body 1. The end of the bellows 901 that is not connected to the electrolytic cell body 1 is fixedly connected to the corresponding plug body 802. The bellows 901 are respectively connected to corresponding inflation pipes 902 outwardly. The air inlet end of the inflation pipe 902 is connected to an external nitrogen source. The inflation pipe 902 is connected to a pressure relief pipe 903 equipped with a pressure relief valve 10.

[0040] By setting up the unloading mechanism 8, the separated electrolysis areas can be isolated to prevent the electrolysis processes in different electrolysis areas from affecting each other; when unloading, the external nitrogen source is pumped into the bellows 901 through the inflation pipe 902 to lift the plug body 802 upward; then, the pressure relief valve 10 is opened to release the pressure to make the plug body 802 fall back; by repeating the inflation and pressure relief, the products deposited and collected in the collecting plate 801 can be quickly and smoothly discharged, which is very convenient.

[0041] The plug body 802 includes a bottom cover 8021, and the bottom cover 8021 is upwardly sealed and connected to a corresponding upper cover 8023 through a corresponding elastic member 8022. A pressure sensor 11 with a detection end abutting against the bottom side of the upper cover 8023 is fixedly installed on the bottom cover 8021. When the pressure value detected by the pressure sensor 11 is greater than F1, an external nitrogen source is pumped into the bellows 901 through the inflation pipe 902 to lift the plug body 802 upward; then, the pressure relief valve 10 is opened to release pressure; the inflation and pressure relief are repeated to discharge the products deposited and collected in the collecting plate 801; when the pressure value detected by the pressure sensor 11 is less than F2, the pressure relief valve 10 is opened to release pressure and no longer inflated.

[0042] The present invention further configures the plug body 802 to be a bottom cover 8021 and an upper cover 8023 elastically connected by an elastic member 8022, and then a pressure sensor 11 with a detection end abutting against the bottom side of the upper cover 8023 is fixedly installed on the bottom cover 8021. When the pressure value detected by the pressure sensor 11 is greater than F1, it can be determined that the amount of products deposited and collected in the collection plate 801 has reached the design value, and at this time, the discharge operation can be performed; when the pressure value detected by the pressure sensor 11 during the discharge is less than F2, it can be determined that the products deposited and collected in the collection plate 801 have been basically discharged, and at this time, the discharge operation can be stopped. In this way, the discharge cycle can be effectively and accurately controlled to improve the use effect of the present invention.

[0043] The bottom of the electrolytic cell body 1 is tilted, and a discharge pipe 12 with a discharge valve 13 is fixedly connected to the bottom of the electrolytic cell body 1, so that the products produced from multiple electrolysis areas can be discharged and collected in a unified manner.

[0044] The middle part of the outer side of the C-shaped gusset plate 7 is fixedly connected with a corresponding reinforcing rib plate to ensure the overall rigidity of the C-shaped gusset plate 7.

[0045] The plate cover 3 is respectively locked and installed on the electrolytic cell cover 2 by a plurality of locking bolts 14. The electrolytic cell cover 2 and the plate cover 3 are respectively fixed with corresponding lifting lugs 15 in diagonal distribution.

[0046] The electrolytic cell body 1 is fixedly mounted on the corresponding bracket 16. The ends of the double-rotation screws 602 located on the same side of the electrolytic cell body 1 are respectively fixedly connected with corresponding nuts 17.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A heptafluorobutyryl fluoride electrolytic cell that is easy to maintain, characterized in that: include: An electrolytic cell body (1), wherein a corresponding electrolytic cell cover (2) is detachably mounted on the top of the electrolytic cell body (1), corresponding electrode plate covers (3) are detachably mounted on the electrolytic cell cover (2) at intervals, and an anode column (4) and a cathode column (5) extending into the electrolytic cell body (1) are respectively fixedly connected to the electrode plate covers (3); A connection mechanism (6) is used to install the electrolytic cell cover (2) on the top of the electrolytic cell body (1), wherein a corresponding installation flange (101) is fixedly arranged at the periphery of the electrolytic cell body (1), and the connection mechanism (6) comprises a plurality of groups of fixing members (601) fixedly connected to the installation flange (101), and corresponding limit blocks (602) are respectively inserted in a transversely movable manner on the fixing members (601) by means of keyway matching, and the opposite sides of the limit blocks (602) installed in the same group of fixing members (601) are respectively arranged in a truncated cone shape, and the centers of the limit blocks (602) in the same group of fixing members (601) are respectively screwed to the corresponding double-rotation screws. (603), the double-rotation screws (603) located on the same side of the electrolytic cell body (1) are fixedly connected to form a whole by welding; the periphery of the electrolytic cell cover (2) is respectively fixedly connected downwardly with corresponding C-shaped buckle plates (7), and after the electrolytic cell cover (2) is covered on the electrolytic cell body (1), the C-shaped buckle plates (7) are respectively sleeved on the double-rotation screws (603) between the same group of fixing parts (601), and the double-rotation screws (603) are rotated to drive the limit blocks (602) in each group of fixing parts (601) to move to the opposite side, so that the truncated cone parts of the limit blocks (602) respectively press downward to fix the corresponding C-shaped buckle plates (7); A material discharge mechanism (8), wherein corresponding isolation plates (18) are respectively fixedly connected to the electrolytic cell body (1) between two adjacent electrode cover plates (3), the bottom of the isolation plates (18) being spaced apart from the bottom of the electrolytic cell body (1), the material discharge mechanism (8) comprising a material collecting plate (801) fixedly connected to the bottom of the space formed by the isolation plates (18) and the electrolytic cell body (1), the middle of the material collecting plate (801) being respectively provided with corresponding material discharge holes, the corresponding plug bodies (802) being respectively installed at the material discharge holes in a liftable manner, and the plug bodies (802) being lifted and lowered by corresponding driving mechanisms (9); The driving mechanism (9) comprises a bellows (901) which is sealed and connected to the bottom of the electrolytic cell body (1); one end of the bellows (901) which is not connected to the electrolytic cell body (1) is fixedly connected to the corresponding plug body (802); the bellows (901) are respectively connected to corresponding gas charging pipes (902) externally; the gas inlet end of the gas charging pipe (902) is connected to an external nitrogen source; and the gas charging pipe (902) is connected to a pressure relief pipe (903) equipped with a pressure relief valve (10).

2. A heptafluorobutyryl fluoride electrolytic cell that is easy to maintain according to claim 1, characterized in that: The plug body (802) comprises a bottom cover (8021), and the bottom cover (8021) is sealed upwardly connected to a corresponding upper cover (8023) via a corresponding elastic member (8022).

3. A heptafluorobutyryl fluoride electrolytic cell easy to maintain according to claim 2, characterized in that: A pressure sensor (11) is fixedly mounted on the bottom cover (8021) with a detection end abutting against the bottom side of the upper cover (8023). When the pressure value detected by the pressure sensor (11) is greater than F1, an external nitrogen source is pumped into the bellows (901) through the inflation pipe (902), so that the plug body (802) is lifted upward; then, the pressure relief valve (10) is opened to release pressure; the inflation and pressure relief are repeated to discharge the product deposited and collected in the collecting plate (801); when the pressure value detected by the pressure sensor (11) is less than F2, the pressure relief valve (10) is opened to release pressure and no longer inflates.

4. A heptafluorobutyryl fluoride electrolytic cell easy to maintain according to claim 3, characterized in that: The bottom of the electrolytic cell body (1) is arranged at an angle, and a discharge pipe (12) equipped with a discharge valve (13) is fixedly connected to the bottom of the electrolytic cell body (1).

5. The heptafluorobutyryl fluoride electrolytic cell easy to maintain according to claim 1, characterized in that: The middle part of the outer side of the C-shaped buckle plate (7) is respectively fixedly connected with a corresponding reinforcing rib plate.

6. The heptafluorobutyryl fluoride electrolytic cell easy to maintain according to claim 1, characterized in that: The electrode cover plates (3) are respectively locked and mounted on the electrolytic cell cover (2) by means of a plurality of locking bolts (14).

7. The heptafluorobutyryl fluoride electrolytic cell easy to maintain according to claim 1, characterized in that: The electrolytic cell cover (2) and the electrode plate cover (3) are respectively and diagonally fixedly connected with corresponding lifting ear plates (15).

8. The heptafluorobutyryl fluoride electrolytic cell easy to maintain according to claim 1, characterized in that: The electrolytic cell body (1) is fixedly mounted on a corresponding bracket (16).

9. The heptafluorobutyryl fluoride electrolytic cell easy to maintain according to claim 1, characterized in that: The ends of the double-rotation screws (603) located on the same side of the electrolytic cell body (1) are respectively fixedly connected with corresponding nuts (17).

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