Liquid ring pump with pull rod structure

Abstract

The utility model belongs to the technical field of liquid ring pumps, in particular to a liquid ring pump with a pull rod structure, which comprises a pump body, a front side cover, a rear side cover, a front bearing component, a rear bearing component and a pull rod, at least two fixing blocks are arranged in the middle of the pump body, through holes are arranged on the fixing blocks, and the pull rod penetrates through the through holes to be mounted. When the pump is disassembled and assembled, the pump does not need to be erected, peripheral pipelines and other equipment do not need to be disassembled and moved, and the disassembly and assembly time of the whole pump is greatly shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid ring pumps, in particular to a liquid ring pump with a tie rod structure. Background Art

[0002] Liquid ring pumps can be divided into two types according to the different ways of fixing the side cover and the pump body: tie rod type liquid ring pump and flange type liquid ring pump. The tie rod type structure refers to the liquid ring pump that fixes the pump body and the side cover by clamping the two ends of a longer stud or bolt. The tie rod type liquid ring pump has a simpler structure, uses less materials, has a low cost, and requires fewer bolts for assembly and disassembly. However, after removing the single-sided nut and the side cover, the entire pump will fall apart. Therefore, in general, in order to avoid the parts of the pump falling apart during assembly and disassembly, the pump needs to be erected for assembly and disassembly maintenance. The problem is that since liquid ring pumps are generally installed horizontally during use, if you want to stand the liquid ring pump up, you must reserve enough space, and lifting equipment is needed to stand the pump up vertically, and you also need to remove the surrounding pipelines and other equipment to the site before you can finally hoist the pump. This is not only a large workload, but also difficult, time-consuming and labor-intensive. Utility Model Content

[0003] In order to overcome the defects of the above-mentioned prior art, the utility model proposes a liquid ring pump with a tie rod structure, which does not need to stand up the pump during disassembly and assembly, greatly shortening the disassembly and assembly time of the entire pump. The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0004] A liquid ring pump with a tie rod structure comprises a pump body, a front side cover, a rear side cover, a front bearing component, a rear bearing component and a tie rod. At least two fixing blocks are arranged in the middle of the pump body, through holes are arranged on the fixing blocks, and the tie rod is installed through the through holes.

[0005] Furthermore, the number of the fixing blocks is less than or equal to the number of the pull rods.

[0006] Specifically, the fixing block is connected to the pump body by welding.

[0007] Specifically, the fixing block and the pump body are integrally cast.

[0008] Preferably, the tie rod is a fully threaded rod.

[0009] The utility model does not need to stand up the pump and does not need to remove surrounding pipelines and other equipment during disassembly and assembly, thus greatly shortening the disassembly and assembly time of the entire pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the structure of the pump body;

[0012] Figure 3 It is a schematic diagram of the disassembly structure. DETAILED DESCRIPTION

[0013] Figure 1 It is a structural schematic diagram of the utility model. Figure 2 The schematic diagram of the pump body is shown in Figure 2. Figure 1 and Figure 2 As shown, a liquid ring pump with a tie rod structure includes a pump body 1, a front side cover 2, a rear side cover 3, a front bearing component 4, a rear bearing component 5 and a tie rod 6. At least two fixing blocks 7 are arranged in the middle of the pump body 1, and a through hole 7.1 is arranged on the fixing block 7. The tie rod 6 is installed through the through hole 7.1.

[0014] The number of fixed blocks 7 is less than or equal to the number of tie rods 6. The fixed blocks 7 are welded to the pump body 1, or the fixed blocks 7 are integrally cast with the pump body 1. The tie rods 6 are fully threaded rods. In this embodiment, the fixed blocks 7 are integrally formed with the pump body 1, and the number of fixed blocks 7 is equal to the number of tie rods 6.

[0015] Figure 3 The schematic diagram of the disassembly structure is as follows: Figure 3 As shown, when the utility model is disassembled and assembled, the front bearing component 4 of the liquid ring pump is removed, and the pump shaft 8 is supported by the first support 10 to keep both ends of the liquid ring pump rotor level; loosen the nuts 9 on all the tie rods 6, and then move all the tie rods 6 to the rear bearing component 5 until they are moved to the position of the fixed block 7, and at this time, tighten the nuts 9 at both ends of all the tie rods 6 to fix the parts between the rear bearing component 5 and the fixed block 7.

[0016] Then the parts between the front bearing component 4 and the fixed block 7 can be disassembled one by one, and a lifting device or a second support can be used to lift or support the parts so that the liquid ring pump rotor always remains horizontal. The first support 10 can be removed and the parts can be removed. All parts should be installed back to their original positions in the order of disassembly, and the nuts 9 on all tie rods 6 should be loosened, all tie rods 6 should be moved to their original positions, and then the nuts 9 at both ends of all tie rods 6 should be tightened. The disassembly and assembly of the parts at one end of the liquid ring pump is now completed; the parts at the other end of the liquid ring pump are disassembled and assembled, and the above steps are repeated to complete the disassembly and assembly of the entire liquid ring pump.

[0017] In short, when disassembling and assembling, the utility model does not need to stand up the pump, and does not need to remove surrounding pipelines and other equipment, which greatly shortens the disassembly and assembly time of the entire pump.

Claims

1. A liquid ring pump with a tie rod structure, comprising a pump body, a front side cover, a rear side cover, a front bearing component, a rear bearing component and a tie rod, wherein: At least two fixing blocks are arranged in the middle of the pump body, through holes are arranged on the fixing blocks, and the pull rods are installed through the through holes.

2. The tie rod structure liquid ring pump according to claim 1 is characterized in that: The number of the fixing blocks is less than or equal to the number of the pull rods.

3. The tie rod structure liquid ring pump according to claim 1 is characterized in that: The fixing block is connected to the pump body by welding.

4. The tie rod structure liquid ring pump according to claim 1, characterized in that: The fixing block is integrally cast with the pump body.

5. The tie rod structure liquid ring pump according to claim 1, characterized in that: The pull rod is a fully threaded rod.

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