CN210919544U - Chemical engineering submerged pump screw thread anticorrosion structure - Google Patents
Chemical engineering submerged pump screw thread anticorrosion structure Download PDFInfo
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- CN210919544U CN210919544U CN201921929985.0U CN201921929985U CN210919544U CN 210919544 U CN210919544 U CN 210919544U CN 201921929985 U CN201921929985 U CN 201921929985U CN 210919544 U CN210919544 U CN 210919544U
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Abstract
The utility model discloses a chemical industry submerged pump screw thread anticorrosion structure, it includes first flange and second flange, be provided with a plurality of double threaded screw between first flange and the second flange, the equal mounting nut in double threaded screw's both ends is connected two flanges, just sealed cap is all installed outward at double threaded screw's both ends, be provided with the sealing washer between sealed cap and the flange face that corresponds. Two flanges of the thread anti-corrosion structure of the working fluid pump are connected by adopting a double-head screw, and sealing caps are arranged at two ends of the double-head screw to prevent a medium from entering a thread part. The structure is simple, and the realization is easy; and various corrosion of the threads caused by contact with media is eliminated, the normal operation of equipment is ensured, and the maintenance of the pump is reduced.
Description
Technical Field
The utility model relates to a chemical industry submerged pump especially relates to a chemical industry submerged pump screw thread anticorrosion structure.
Background
The impeller of the chemical submerged pump runs submerged, and chemical media are generally corrosive; part of the connecting bolts of the whole pump are submerged in liquid, and part of the bolts are close to the liquid and are in an environment with corrosive atmosphere. The bolt and the nut are made of corresponding corrosion-resistant materials, but the bolt and the nut are connected by threads, a small gap is formed between the threads, the gap is filled with liquid or gas, and various forms of corrosion exist between the threads; in many cases, the other parts of the bolt have not yet been shown to corrode, and the threaded part has corroded, often requiring replacement. Affecting the normal operation of the pump.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chemical industry submerged pump screw thread anticorrosion structure to the easy problem of corroding of the screw thread part of chemical industry submerged pump among the solution prior art.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a chemical industry submerged pump screw thread anticorrosion structure, its includes first flange and second flange, be provided with a plurality of double-end screw between first flange and the second flange, the equal mounting nut in both ends of double-end screw connects two flanges, just sealed cap is all installed outward at double-end screw's both ends, be provided with the sealing washer between sealed cap and the flange face that corresponds.
Particularly, an accommodating cavity for accommodating a nut is arranged in the sealing cap, and an internal thread hole matched with the external thread of the double-thread screw is formed in the bottom of the accommodating cavity.
In particular, a sealing ring is arranged between the connecting surfaces of the first flange and the second flange.
In particular, a washer is arranged on the double-ended screw between the nut and the corresponding flange surface.
The beneficial effects of the utility model are that, compare with prior art two flanges of chemical industry submerged pump screw thread anticorrosion structure adopt double-thread screw to connect, and sealed cap is all installed at double-thread screw's both ends, prevents the medium entering screw thread part. The structure is simple, and the realization is easy; and various corrosion of the threads caused by contact with media is eliminated, the normal operation of equipment is ensured, and the maintenance of the pump is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a chemical submerged pump thread anti-corrosion structure provided by an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a chemical submerged pump thread anti-corrosion structure according to an embodiment of the present invention.
In this embodiment, a chemical industry submerged pump screw thread anticorrosion structure includes first flange 1 and second flange 2, is provided with sealing washer 3 between the face of being connected of first flange 1 and second flange 2, and corresponds between the face of being connected of first flange 1 and second flange 2 and has seted up a plurality of connecting hole, be provided with double-end screw 4 in the connecting hole, the equal mounting nut 5 in both ends of double-end screw 4 is connected two flanges, is provided with gasket 6 between nut 5 and the flange face that corresponds.
All install sealed cap 7 outside double-end screw 4's both ends, the one end opening of sealed cap 7, the other end is the blind end, and the open end of sealed cap 7 has the holding chamber 8 that is used for holding nut 5, and the bottom of holding chamber 8 is provided with the internal thread hole 9 with double-end screw 4's external screw thread fit, screws up sealed cap 7 in double-end screw 4's tip through internal thread hole 9, makes the open end of sealed cap 7 hug closely corresponding flange face setting.
A sealing ring 3 is arranged between the opening end of the sealing cap 7 and the corresponding flange surface, so that a medium is prevented from entering the threads, and meanwhile, the sealing cap 7 is prevented from loosening by the aid of the sealing pressure of elastic deformation of the sealing ring 3.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (4)
1. The utility model provides a chemical industry submerged pump screw thread anticorrosion structure, its includes first flange and second flange, its characterized in that, be provided with a plurality of double threaded screw between first flange and the second flange, the equal mounting nut in both ends of double threaded screw connects two flanges, just sealed cap is all installed outward at double threaded screw's both ends, be provided with the sealing washer between sealed cap and the flange face that corresponds.
2. The chemical submerged pump thread anti-corrosion structure according to claim 1, characterized in that an accommodating cavity for accommodating a nut is provided in the sealing cap, and an internal thread hole matched with the external thread of the double-threaded screw is provided at the bottom of the accommodating cavity.
3. The chemical submerged pump thread anti-corrosion structure as claimed in claim 1, wherein a sealing ring is arranged between the connecting surfaces of the first flange and the second flange.
4. The chemical submerged pump thread anti-corrosion structure as claimed in claim 1, wherein a gasket is arranged on the double-threaded screw between the nut and the corresponding flange surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929985.0U CN210919544U (en) | 2019-11-08 | 2019-11-08 | Chemical engineering submerged pump screw thread anticorrosion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929985.0U CN210919544U (en) | 2019-11-08 | 2019-11-08 | Chemical engineering submerged pump screw thread anticorrosion structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210919544U true CN210919544U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921929985.0U Active CN210919544U (en) | 2019-11-08 | 2019-11-08 | Chemical engineering submerged pump screw thread anticorrosion structure |
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| Country | Link |
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| CN (1) | CN210919544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325045A (en) * | 2020-11-08 | 2021-02-05 | 国家电网有限公司 | Flange surface grading pressure relief plugging tool and plugging method |
| CN116292287A (en) * | 2023-03-21 | 2023-06-23 | 淄博干式真空泵有限公司 | Corrosion-resistant pump body of screw vacuum pump and corrosion-resistant method |
-
2019
- 2019-11-08 CN CN201921929985.0U patent/CN210919544U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325045A (en) * | 2020-11-08 | 2021-02-05 | 国家电网有限公司 | Flange surface grading pressure relief plugging tool and plugging method |
| CN116292287A (en) * | 2023-03-21 | 2023-06-23 | 淄博干式真空泵有限公司 | Corrosion-resistant pump body of screw vacuum pump and corrosion-resistant method |
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