Vertical external sulfuric acid pump

Abstract

The utility model relates to a vertical external sulfuric acid pump and belongs to the technical field of sulfuric acid pumps. The top of the supporting pipe is installed on a notch above a tank through the base, the bearing seat is installed on the base, the pump body is installed at the bottom of the supporting pipe, the rotating shaft is installed on the bearing seat through a bearing and located in the supporting pipe, and the bottom end of the rotating shaft is installed in the supporting pipe through the shaft sleeve and the lining. The impeller is installed in the pump body and is in transmission connection with the rotating shaft. A liquid inlet is formed in the bottom of the pump body; a liquid outlet is formed in the side part of the pump body; the device is installed outside a tank, so that the whole submerged component is prevented from being soaked in sulfuric acid, the contact area between sulfuric acid and a pump cover, a pump body, an impeller and a flange and between sulfuric acid is reduced, corrosion is slowed down, and the service life is prolonged; the base is reasonable and compact in design and reduces installation space. When installed, the device is located outside a tank, the contact area of a medium and a flow passage component can be reduced, the corrosion speed of the flow passage component is slowed down, the service life is prolonged, overhauling and maintenance can be conducted when equipment stops, and overhauling is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of sulfuric acid pumps, and in particular relates to a vertical external sulfuric acid pump. Background Art

[0002] Sulfuric acid pumps are used to transport concentrated sulfuric acid in sulfuric acid plants. They are used to transport concentrated sulfuric acid with a temperature of t≤110°C and a concentration of 93% to 98% or fuming acid ≥105%. Traditional vertical sulfuric acid pumps are installed above the tank, with all submerged components immersed in the sulfuric acid. This requires a slot in the tank, and maintenance requires the pump to be lifted out of the tank, making maintenance cumbersome and inefficient. Summary of the Invention

[0003] In order to overcome the problem in the background art that all the submerged parts of the traditional vertical sulfuric acid pump are immersed in sulfuric acid, and the pump needs to be lifted out of the tank for maintenance, resulting in cumbersome maintenance work and low work efficiency, the utility model provides a vertical external sulfuric acid pump. The support and transmission lengths are extended by the support tube and the rotating shaft 7 to meet the length requirements of the tank depth. The pump is installed outside the tank to avoid the entire submerged parts being immersed in sulfuric acid, reducing the contact area between sulfuric acid and the pump cover 1, pump body 2, impeller 3, flange, and sulfuric acid, slowing down corrosion and extending the service life. The base is reasonably compact in design to reduce installation space. When installed outside the tank, it is located outside the tank, which can reduce the contact area between the medium and the flow-through parts, slowing down the corrosion rate of the flow-through parts, extending the service life, and can be repaired and maintained when the equipment is stopped, making it easy to repair.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a vertical external sulfuric acid pump mainly includes a pump body 2, an impeller 3, a rotating shaft 7, a support tube, a base 13, and a bearing seat 15. The top of the support tube is installed on the notch above the tank through the base 13, the bearing seat 15 is installed on the base 13, the pump body 2 is installed at the bottom of the support tube, the rotating shaft 7 is installed on the bearing seat 15 through a bearing, the rotating shaft 7 is in the support tube, and the bottom end of the rotating shaft 7 is installed in the support tube through a shaft sleeve and a bushing. The impeller 3 is installed in the pump body 2, and the impeller 3 is transmission-connected to the rotating shaft 7. A liquid inlet is provided at the bottom of the pump body 2, and a liquid outlet is provided on the side of the pump body 2.

[0005] Furthermore, the support tube includes a lower connecting tube 8 and an upper connecting tube 12 , the lower connecting tube 8 and the upper connecting tube 12 are connected to each other through a sliding seat 11 , and the middle portion of the rotating shaft 7 is installed in the sliding seat 11 through a shaft sleeve and a bushing.

[0006] Furthermore, the pump body 2 is provided with a pump cover 1 for easy maintenance and disassembly.

[0007] Furthermore, the bottom end of the support tube is threadedly connected to a flange, and the support tube is installed on the pump body 2 through the flange and the sealing ring.

[0008] Furthermore, a motor seat 18 is mounted on the base 13 for facilitating installation of the motor.

[0009] Beneficial effects of the utility model:

[0010] This new pump is installed outside the tank, preventing all submerged components from being immersed in sulfuric acid. This reduces the contact area between the sulfuric acid and the pump cover, pump body, impeller, flange, and other components, slowing corrosion and extending service life. The base is designed to be compact and reduces installation space. When installed outside the tank, it reduces the contact area between the medium and the flow-through components, slowing corrosion and extending service life. The pump can be stopped for inspection and maintenance, making it easy to repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of the utility model. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0013] The utility model discloses a vertical external sulfuric acid pump, which mainly comprises a pump body 2, an impeller 3, a rotating shaft 7, a support pipe, a base 13, and a bearing seat 15. The top of the support pipe is installed on the notch above the tank through the base 13, the bearing seat 15 is installed on the base 13, the pump body 2 is installed at the bottom of the support pipe, the rotating shaft 7 is installed on the bearing seat 15 through a bearing, the rotating shaft 7 is in the support pipe, the bottom end of the rotating shaft 7 is installed in the support pipe through a shaft sleeve and a bushing, the impeller 3 is installed in the pump body 2, the impeller 3 is transmission-connected with the rotating shaft 7, a liquid inlet is provided at the bottom of the pump body 2, and a liquid outlet is provided at the side of the pump body 2; the support and transmission lengths are lengthened by the support pipe and the rotating shaft 7 to meet the length requirement of the tank depth; the pump is installed outside the tank to avoid the entire submerged components being immersed in sulfuric acid, reducing the contact area between the sulfuric acid and the pump cover 1, the pump body 2, the impeller 3, the flange, and the sulfuric acid, slowing down corrosion, and extending the service life; the base is reasonably and compactly designed to reduce the installation space. When installed outside the tank, it can reduce the contact area between the medium and the flow components, slow down the corrosion rate of the flow components, extend the service life, and can be repaired and maintained when the equipment is stopped, which is convenient for maintenance.

[0014] The support tube includes a lower tube 8 and an upper tube 12. The lower tube 8 and the upper tube 12 are connected through a sliding seat 11. The middle part of the rotating shaft 7 is installed in the sliding seat 11 through a sleeve and a bushing. The middle part of the rotating shaft 7 is supported by the sleeve and the bushing to reduce vibration and ensure smooth operation of the rotating shaft 7.

[0015] The pump body 2 is provided with a pump cover 1 for easy maintenance and disassembly.

[0016] The bottom end of the support tube is threadedly connected to a flange, and the support tube is installed on the pump body 2 through the flange and the sealing ring.

[0017] A motor seat 18 is mounted on the base 13 for facilitating installation of the motor.

[0018] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A vertical external sulfuric acid pump, characterized by: The vertical external sulfuric acid pump comprises a pump body (2), an impeller (3), a rotating shaft (7), a support tube, a base (13), and a bearing seat (15). The top of the support tube is mounted on a notch above the tank through the base (13), the bearing seat (15) is mounted on the base (13), the pump body (2) is mounted on the bottom of the support tube, the rotating shaft (7) is mounted on the bearing seat (15) through a bearing, the rotating shaft (7) is in the support tube, the bottom end of the rotating shaft (7) is mounted in the support tube through a shaft sleeve and a bushing, the impeller (3) is mounted in the pump body (2), the impeller (3) is connected to the rotating shaft (7) by transmission, the bottom of the pump body (2) is provided with a liquid inlet, and the side of the pump body (2) is provided with a liquid outlet.

2. A vertical external sulfuric acid pump according to claim 1, characterized in that: The support tube comprises a lower connecting tube (8) and an upper connecting tube (12). The lower connecting tube (8) and the upper connecting tube (12) are connected to each other via a sliding seat (11). The middle portion of the rotating shaft (7) is installed in the sliding seat (11) via a shaft sleeve and a bushing.

3. A vertical external sulfuric acid pump according to claim 1 or 2, characterized in that: The pump body (2) is provided with a pump cover (1) that is easy to inspect and disassemble.

4. A vertical external sulfuric acid pump according to claim 3, characterized in that: The bottom end of the support pipe is threadedly connected to a flange, and the support pipe is mounted on the pump body (2) through the flange and the sealing ring.

5. A vertical external sulfuric acid pump according to any one of claims 1, 2, and 4, characterized in that: A motor seat (18) is mounted on the base (13) for facilitating installation of the motor.

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