Water adding system for circulating tank of sulfuric acid absorption tower

Abstract

The utility model discloses a sulfuric acid absorption tower circulating tank water adding system which comprises a circulating tank water adding device body, the circulating tank water adding device body comprises a sulfuric acid circulating tank body, a water adding sleeve is arranged in the sulfuric acid circulating tank body and extends to the upper surface of the sulfuric acid circulating tank body, and a cover plate is arranged at the top end of the water adding sleeve. By designing a convenient disassembly and assembly mechanism, an outer thread ring and the inner surface of an inner thread structure rotate until the bottom end of the outer thread ring makes contact with the surface of a limiting ring, rotation and fixation are stopped, and an elastic block deforms to elastically clamp a clamping head into a clamping hole so as to rotationally lock and fix a cover plate; and the threaded adjusting rod is rotated again to fixedly mount the chuck, so that the cover plate is rotatably mounted and then is fixedly mounted, and when the interior of the cover plate is damaged and overhauled after being used for a period of time, the cover plate is quickly disassembled by reverse operation, so that the convenience of disassembling, assembling and overhauling the cover plate when the circulating tank water adding device main body is mounted on the sulfuric acid absorption tower for use and damage is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circulation tank water adding devices, in particular to a circulation tank water adding system for a sulfuric acid absorption tower. Background Art

[0002] In the sulfuric acid production process, the absorption tower uses 98% concentrated sulfuric acid to absorb SO3 to produce sulfuric acid. After the circulating acid absorbs SO3, the sulfuric acid concentration will increase. In order to control the circulating acid concentration, water needs to be added to the circulation tank of the absorption tower to dilute and control the sulfuric acid concentration in the circulation tank. The existing circulation tank water addition device is used to add water to the sulfuric acid absorption tower during the sulfuric acid production process to dilute the sulfuric acid, so as to control the sulfuric acid concentration at a certain complex during the production of sulfuric acid. The circulation tank water addition device is convenient for disassembly and maintenance of the cover plate when in use, which improves the convenience of disassembly and maintenance of the cover plate when the circulation tank water addition device is installed on the sulfuric acid absorption tower and is damaged during use;

[0003] According to a sulfuric acid absorption tower circulation tank water addition system disclosed in the authorized patent application No. 201921559368.6, when the existing circulation tank water addition device is used on the sulfuric acid absorption tower, the top cover plate of the water addition sleeve of the circulation tank water addition device and the water addition sleeve are fixed and installed by multiple bolts and rotated with the help of tools. Therefore, after the circulation tank water addition device is fixed and installed and used for a long time and internal damage is repaired, it is necessary to use tools to remove the multiple bolts again, which makes the disassembly and maintenance of the cover plate on the circulation tank water addition device inconvenient. In severe cases, the bolts are exposed to external rust and cannot be removed, affecting the convenience of disassembly and maintenance of the cover plate when the circulation tank water addition device is installed on the sulfuric acid absorption tower. For this reason, the utility model proposes a sulfuric acid absorption tower circulation tank water addition system. Utility Model Content

[0004] The purpose of the utility model is to provide a circulation tank water adding system for a sulfuric acid absorption tower, so as to solve the problem in the above-mentioned background technology that a cover plate on the sulfuric acid absorption tower and a water adding sleeve are connected by multiple bolts and are disassembled and assembled with the help of tools, which makes it inconvenient to disassemble and overhaul the cover plate on the circulation tank water adding device. In severe cases, the bolts are exposed to external rust and cannot be disassembled, which affects the convenience of disassembly and overhaul of the cover plate when the circulation tank water adding device is installed on the sulfuric acid absorption tower and damaged.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a sulfuric acid absorption tower circulation tank water adding system, comprising a circulation tank water adding device body, the circulation tank water adding device body comprising a sulfuric acid circulation tank body, a water adding sleeve is provided inside the sulfuric acid circulation tank body and extends to the upper surface of the sulfuric acid circulation tank body, a cover is provided on the top of the water adding sleeve, a negative pressure pipe connection port and a circulating acid addition pipe are respectively provided on the top of both sides of the water adding sleeve, a water adding pipe is fixedly installed inside the cover plate, the water adding pipe passes through the inside of the circulating acid addition pipe, air inlets are provided on both sides of the bottom end of the water adding sleeve located inside the sulfuric acid circulation tank body, a circular sealing plate is provided inside the air inlet, and the circulation tank water adding device body is further provided with:

[0006] A convenient disassembly and assembly mechanism, comprising a rotary connection assembly, an elastic locking assembly provided at the top edge of the water adding sleeve, and a toggle adjustment assembly provided on the lower surface of the elastic locking assembly at the top edge of the water adding sleeve;

[0007] The cleaning mechanism comprises a pulling and adjusting assembly arranged on both sides of the cover plate and inside the water supply sleeve, and the bottom end of the pulling and adjusting assembly is located on the outer surface of the water supply pipe and is provided with a cleaning assembly.

[0008] Preferably, the rotating connection assembly includes an external threaded ring integrally formed at the edge of the lower surface of the cover plate, a limiting ring integrally formed at the inner edge of the water adding sleeve, an internal threaded structure is provided on the upper surface of the limiting ring at the inner top edge of the water adding sleeve, and the external threaded ring is consistent with the internal threaded structure.

[0009] Preferably, the elastic locking assembly includes a limiting movable groove opened at the top edge of the water adding sleeve, the internal limit of the limiting movable groove is limited by a clamp, an elastic block is provided at the end of the clamp and the internal connection between the limiting movable groove, and a clamping hole is opened at the edge of the external threaded ring.

[0010] Preferably, the end of the clamp extends to the inner surface of the water adding sleeve, and the end of the clamp is engaged with the inside of the clamping hole.

[0011] Preferably, the toggle adjustment assembly includes a threaded adjustment rod slidably connected to the lower surface of the top end of the water adding sleeve, and the end of the threaded adjustment rod is rotationally connected to the lower surface of the clamping head through a threaded structure.

[0012] Preferably, the pulling adjustment assembly includes sealing columns mounted on both sides of the top end of the cover plate, and the interior of the sealing columns is sealed and connected to a pull rod.

[0013] Preferably, the cleaning assembly includes a connecting ring arranged at the bottom end of the water filling pipe, the upper surface of the connecting ring is fixed to the bottom end of the pull rod by screws, the inner surface of the connecting ring is fixed with a scraper ring by screws, the inner surface of the scraper ring contacts the outer surface of the water filling pipe, and a penetration hole is opened at the edge of the scraper ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By designing a convenient disassembly and assembly mechanism, the outer thread ring and the inner surface of the inner thread structure are rotated until the bottom end of the outer thread ring contacts the surface of the limit ring and stops rotating and fixing. The elastic block deforms to elastically clamp the clamp head inside the clamping hole to lock and fix the cover plate rotation. The threaded adjustment rod is rotated again to fix the clamp head, thereby strengthening the fixed installation after the cover plate is rotated and installed. When the internal damage is repaired after a period of use, the opposite operation can be performed to quickly disassemble the cover plate, and the disassembly and assembly are convenient for maintenance, thereby improving the convenience of disassembly and assembly of the cover plate when the main body of the circulation tank water adding device is installed on the sulfuric acid absorption tower and is damaged during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of part A;

[0019] Figure 4 For this utility model Figure 3 The enlarged structural diagram of part C in the middle;

[0020] Figure 5 This is a structural diagram of the cover plate and water adding sleeve of the utility model in a partially opened state;

[0021] Figure 6 For this utility model Figure 2 The enlarged structural diagram of part B in the middle;

[0022] In the figure: 100, the main body of the circulation tank water addition device; 101, the sulfuric acid circulation tank body; 102, the water addition sleeve; 103, the circulating acid addition pipe; 104, the negative pressure pipe connection port; 105, the water addition pipe; 1051, the pull rod; 1052, the sealing column; 1053, the scraper ring; 1054, the connecting ring; 1055, the penetration hole; 106, the cover plate; 1061, the external thread ring; 1062, the limiting ring; 1063, the threaded adjustment rod; 1064, the elastic block; 1065, the limiting movable groove; 1066, the clamp; 1067, the clamp hole; 1068, the internal thread structure; 107, the air inlet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 6 The utility model provides a technical solution: a sulfuric acid absorption tower circulation tank water adding system, including a circulation tank water adding device body 100, the circulation tank water adding device body 100 includes a sulfuric acid circulation tank body 101, a water adding sleeve 102 is provided inside the sulfuric acid circulation tank body 101 and extends to the upper surface of the sulfuric acid circulation tank body 101, a cover plate 106 is provided on the top of the water adding sleeve 102, and negative pressure pipe connection ports 104 and circulating acid adding pipes 103 are respectively provided on the tops of both sides of the water adding sleeve 102, a water adding pipe 105 is fixedly installed inside the cover plate 106, and process water is supplied from the water adding sleeve 102 to the circulation tank body 101. The pipe 105 is added to the water adding sleeve 102, and the circulating acid is added from the circulating acid adding pipe 103. The circulating acid added into the circulating acid adding pipe 103 flows out of the end of the circulating acid adding pipe 103 and flows down along the outer peripheral surface of the water adding pipe 105, thereby washing away most of the heat generated during the water adding process. The water adding pipe 105 runs through the interior of the circulating acid adding pipe 103. Air inlets 107 are provided on both sides of the bottom end of the water adding sleeve 102, which are located inside the sulfuric acid circulation tank body 101. A circular sealing plate is provided inside the air inlet 107. The main body 100 of the circulation tank water adding device is also provided with:

[0025] A convenient disassembly and assembly mechanism is provided, and the convenient disassembly and assembly mechanism includes a rotating connection component, an elastic locking component is provided at the top edge of the water adding sleeve 102, and a toggle adjustment component is provided at the lower surface of the elastic locking component located at the top edge of the water adding sleeve 102. When the circulation tank water adding device body 100 is installed and used, if it is damaged after a period of use, the cover plate 106 can be quickly disassembled and assembled for maintenance by the convenient disassembly and assembly mechanism, and the disassembly and maintenance are convenient, thereby improving the convenience of disassembly and maintenance of the cover plate 106 when the circulation tank water adding device body 100 is installed on the sulfuric acid absorption tower and is damaged.

[0026] In order to facilitate the rotational installation of the cover plate 106 through the rotational connection assembly, and conversely facilitate the disassembly of the cover plate 106, and facilitate assembly and disassembly, in this embodiment, preferably, the rotational connection assembly includes an external threaded ring 1061 integrally formed at the edge of the lower surface of the cover plate 106, and a limiting ring 1062 integrally formed at the inner edge of the water adding sleeve 102, and the upper surface of the limiting ring 1062 is located at the inner top edge of the water adding sleeve 102 and is provided with an internal thread structure 1068, and the external threaded ring 1061 is consistent with the internal threaded structure 1068 structure, and the external threaded ring 1061 is rotationally connected to the inner surface of the internal threaded structure 1068 until the external threaded ring 1061 rotates to contact the surface of the limiting ring 1062 to stop the rotational installation, and facilitates the installation and use of the cover plate 106, and conversely facilitates disassembly and maintenance.

[0027] In order to facilitate the reinforcing installation of the cover plate 106 after the rotation installation through the elastic locking assembly, in this embodiment, preferably, the elastic locking assembly includes a limiting movable groove 1065 opened at the top edge of the water adding sleeve 102, and the internal limit of the limiting movable groove 1065 is limited by a clamping head 1066, and an elastic block 1064 is provided at the connection between the end of the clamping head 1066 and the internal connection of the limiting movable groove 1065. The deformation of the elastic block 1064 drives the clamping head 1066 to be elastically connected inside the limiting movable groove 1065, which is convenient for elastic locking installation. A clamping hole 1067 is opened at the edge of the external threaded ring 1061, until the clamping head 1066 is elastically clamped inside the clamping hole 1067 to strengthen the fixed installation of the cover plate 106 for more secure use.

[0028] In order to facilitate the hand-held threaded adjustment rod 1063 to adjust the position of the clamp 1066 by toggling the adjustment component, and to facilitate the toggling adjustment process, in this embodiment, preferably, the toggling adjustment component includes a threaded adjustment rod 1063 slidingly connected to the lower surface of the top of the water-filling sleeve 102, and the end of the threaded adjustment rod 1063 is rotationally connected to the lower surface of the clamp 1066 through a threaded structure. The hand-held threaded adjustment rod 1063 drives the clamp 1066 to adjust the process, and the threaded adjustment rod 1063 is rotated to reinforce the installation after the clamping installation.

[0029] A cleaning mechanism is provided, and the cleaning mechanism includes a pulling and adjusting component arranged on both sides of the cover plate 106 and located inside the water adding sleeve 102. The bottom end of the pulling and adjusting component is located on the outer surface of the water adding pipe 105 and a cleaning component is provided. When dirt adheres to the outer surface of the water adding pipe 105 after the circulation tank water adding device body 100 has been used for a period of time, the cleaning mechanism can clean the outer surface of the water adding pipe 105, which is convenient for cleaning and can efficiently take away most of the heat generated in the water adding process during flushing, and the heat dissipation is faster.

[0030] In order to facilitate the pulling and adjustment of the connecting ring 1054 by pulling the adjustment component and facilitate the pulling and adjustment cleaning process, in this embodiment, preferably, the pulling and adjustment component includes a sealing column 1052 that is snap-fitted and installed on both sides of the top of the cover plate 106. The internal sealing connection of the sealing column 1052 is connected with a pull rod 1051. The pull rod 1051 can be held by hand to drive the water supply pipe 105 to slide inside the cover plate 106, and the pull rod 1051 is sealed by the sealing column 1052 when sliding, until the pull rod 1051 is pulled to drive the scraper ring 1053 and the connecting ring 1054 and the scraper ring 1053 to move for cleaning, which makes cleaning convenient.

[0031] In order to facilitate regular cleaning of the outer surface of the water adding pipe 105 through the cleaning component and facilitate cleaning, in this embodiment, preferably, the cleaning component includes a connecting ring 1054 arranged at the bottom end of the water adding pipe 105, the upper surface of the connecting ring 1054 is fixed to the bottom end of the pull rod 1051 by screws, and the inner surface of the connecting ring 1054 is fixed with a scraper ring 1053 by screws, and the inner surface of the scraper ring 1053 contacts the outer surface of the water adding pipe 105, and the pull rod 1051 can be pulled to drive the connecting ring 1054 and the scraper ring 1053 to slide, and the scraper ring 1053 can be slid to contact the outer surface of the water adding pipe 105 for cleaning, and the cleaning is convenient. A penetration hole 1055 is opened at the edge of the scraper ring 1053, and when the circulating acid flows down to the bottom, it leaks to the bottom through the penetration hole 1055, which is convenient for water adding.

[0032] The working principle and use process of the utility model are as follows: before using the circulating tank water adding system of the sulfuric acid absorption tower, the circulating tank water adding device body 100 is first placed at the position of use. When in use, process water is added into the water adding sleeve 102 from the water adding pipe 105, and circulating acid is added from the circulating acid adding pipe 103. The circulating acid added into the circulating acid adding pipe 103 flows out of the end of the circulating acid adding pipe 103 and flows down along the outer peripheral surface of the water adding pipe 105, thereby washing away most of the heat generated in the process of adding water, and the acid generated in the process of diluting the concentrated sulfuric acid with water is When the acid mist in the water adding sleeve 102 is sucked through the negative pressure pipe connection port 104, its suction force will break the circular sealing plate at the end of the air inlet 107, and the air flow enters from the air inlet 107, forms convection mixing with the acid mist in the water adding sleeve 102, and is then sucked out from the negative pressure pipe connection port 104, thereby accelerating the discharge operation of the acid mist. When all the acid mist is sucked out, the suction force disappears, and the air inlet 107 is sealed and closed again, which is convenient for adding water to the sulfuric acid circulation tank body 101 of the sulfuric acid absorption tower through the circulation tank water adding device main body 100;

[0033] Then, before the main body 100 of the circulating tank water adding device is used, the handheld threaded adjustment rod 1063 drives the clamping head 1066 to be adjusted to the inside of the limit movable groove 1065, and the outer thread ring 1061 and the inner surface of the inner thread structure 1068 are rotated until the bottom end of the outer thread ring 1061 contacts the surface of the limit ring 1062, and the rotation is stopped to fix the cover 106. After the rotation, the end of the clamping head 1066 corresponds to the clamping hole 1067. After the rotation is fixed, the threaded adjustment rod 1063 is loosened, and the elastic block 1064 generates The deformation effect causes the clamp head 1066 to be elastically engaged with the inside of the clamp hole 1067 to rotate and lock the cover plate 106. The threaded adjustment rod 1063 is rotated again to fix the clamp head 1066. Thus, the cover plate 106 is rotated and installed to strengthen the fixed installation. The installation is more convenient. When the cover plate 106 is damaged after a period of use, the cover plate 106 can be quickly disassembled by the reverse operation. The disassembly and assembly are convenient for maintenance, which improves the convenience of disassembly and assembly of the cover plate 106 when the circulation tank water adding device body 100 is installed on the sulfuric acid absorption tower.

[0034] Finally, when the circulation tank water adding device body 100 has been used for a period of time, and the circulating acid has entered the outer surface of the water adding pipe 105 for a long time and is contaminated with too much dirt, the top of the pull rod 1051 can be held by hand to drive the pull rod 1051 to slide in the internal seal of the sealing column 1052 until the pull rod 1051 is pulled to drive the connecting ring 1054 and the scraper ring 1053 to move, so that the scraper ring 1053 contacts the outer surface of the water adding pipe 105 when moving to scrape and clean it, and falls through the penetration hole 1055 when the circulating acid falls to the bottom, thereby facilitating the cleaning of the dirt on the outer surface of the water adding pipe 105 by the circulation tank water adding device body 100 when in use. The cleaning process is convenient, and most of the heat generated in the water adding process is efficiently taken away during flushing, and the heat dissipation is faster.

[0035] Although embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sulfuric acid absorption tower circulation tank water addition system, comprising a circulation tank water addition device body (100), the circulation tank water addition device body (100) comprising a sulfuric acid circulation tank body (101), a water addition sleeve (102) provided inside the sulfuric acid circulation tank body (101) and extending to the upper surface of the sulfuric acid circulation tank body (101), a cover plate (106) provided at the top end of the water addition sleeve (102), a negative pressure pipe connection port (104) and a circulating acid addition pipe (103) provided at the top ends of both sides of the water addition sleeve (102), a water addition pipe (105) fixedly installed inside the cover plate (106), the water addition pipe (105) passing through the inside of the circulating acid addition pipe (103), air inlets (107) provided on both sides of the bottom end of the water addition sleeve (102) located inside the sulfuric acid circulation tank body (101), a circular sealing plate provided inside the air inlet (107), and characterized in that: The main body (100) of the circulating tank water adding device is further provided with: A convenient disassembly and assembly mechanism, comprising a rotary connection assembly, an elastic locking assembly being provided at the top edge of the water adding sleeve (102), and a toggle adjustment assembly being provided on the lower surface of the elastic locking assembly at the top edge of the water adding sleeve (102); A cleaning mechanism comprises a pulling and adjusting assembly arranged on both sides of the cover plate (106) and located inside the water supply sleeve (102); the bottom end of the pulling and adjusting assembly is located on the outer surface of the water supply pipe (105) and is provided with a cleaning assembly.

2. A sulfuric acid absorption tower circulation tank water adding system according to claim 1, characterized in that: The rotary connection assembly comprises an external threaded ring (1061) integrally formed at the edge of the lower surface of the cover plate (106), a limiting ring (1062) integrally formed at the inner edge of the water adding sleeve (102), an internal threaded structure (1068) provided on the upper surface of the limiting ring (1062) at the inner top edge of the water adding sleeve (102), and the external threaded ring (1061) and the internal threaded structure (1068) are structurally consistent.

3. A sulfuric acid absorption tower circulation tank water adding system according to claim 2, characterized in that: The elastic locking assembly comprises a limiting movable groove (1065) provided at the top edge of the water adding sleeve (102); a clamping head (1066) is provided inside the limiting movable groove (1065); an elastic block (1064) is provided at the connection between the end of the clamping head (1066) and the inside of the limiting movable groove (1065); and a clamping hole (1067) is provided at the edge of the external threaded ring (1061).

4. A sulfuric acid absorption tower circulation tank water adding system according to claim 3, characterized in that: The end of the clamp (1066) extends to the inner surface of the water adding sleeve (102), and the end of the clamp (1066) is engaged and connected with the inside of the clamping hole (1067).

5. A sulfuric acid absorption tower circulation tank water adding system according to claim 3, characterized in that: The toggle adjustment assembly comprises a threaded adjustment rod (1063) slidably connected to the lower surface of the top end of the water adding sleeve (102), and the end of the threaded adjustment rod (1063) is rotationally connected to the lower surface of the clamp (1066) via a threaded structure.

6. A sulfuric acid absorption tower circulation tank water adding system according to claim 1, characterized in that: The pulling adjustment assembly comprises sealing columns (1052) mounted on both sides of the top end of the cover plate (106), and the interior of the sealing columns (1052) is sealedly connected to a pull rod (1051).

7. A sulfuric acid absorption tower circulation tank water adding system according to claim 6, characterized in that: The cleaning assembly comprises a connecting ring (1054) arranged at the bottom end of the water supply pipe (105), the upper surface of the connecting ring (1054) is fixed to the bottom end of the pull rod (1051) by screws, and a scraping ring (1053) is fixed to the inner surface of the connecting ring (1054) by screws, the inner surface of the scraping ring (1053) contacts the outer surface of the water supply pipe (105), and a penetration hole (1055) is opened at the edge of the scraping ring (1053).

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