CN212250433U - Non-leakage plunger pump sealing assembly - Google Patents
Non-leakage plunger pump sealing assembly Download PDFInfo
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- CN212250433U CN212250433U CN202020141758.8U CN202020141758U CN212250433U CN 212250433 U CN212250433 U CN 212250433U CN 202020141758 U CN202020141758 U CN 202020141758U CN 212250433 U CN212250433 U CN 212250433U
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Abstract
The embodiment of the utility model discloses no leakage plunger pump seal assembly, including plunger, the cladding at the outside seal structure of plunger, this seal structure includes the cladding at the seal assembly of plunger outer wall and the cladding at the seal box body of seal assembly and partial plunger, the filler material in the seal box is preferred to be the filler of graphite fiber and polytetrafluoroethylene fiber combination, adopts the mode that the combination was packed, and the simple adoption graphite or the polytetrafluoroethylene packing corrosion resistance that adopts before than improves with wear-resisting type, adopts to pack for the whole circle and packs, does not have the incision, adopts no notched packing to avoid conveying liquid to leak at the incision position. The plunger surface adopts the sclerosis layer of special treatment, reduces wearing and tearing, reduces the corruption of conveying medium to the plunger.
Description
Technical Field
The embodiment of the utility model provides a relate to plunger pump technical field, concretely relates to no leakage plunger pump seal assembly.
Background
The plunger pump is an important device of the hydraulic system. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like. The horizontal plunger pump is a hydraulic pump which is characterized in that a plurality of plungers are arranged in parallel, and 1 crankshaft directly pushes the plungers to reciprocate through a connecting rod sliding block or an eccentric shaft, so as to realize liquid suction and discharge. Plunger pumps are widely used in applications where high pressure, high flow and flow needs to be regulated, such as hydraulic machines, engineering machinery and ships. When the plunger pump is used as a chemical industry delivery pump, when liquid which is easy to crystallize and has corrosiveness is conveyed, the pressure of the hydraulic cylinder is large, the plunger and the sealing box are extremely easy to wear under the reciprocating motion of the plunger, leakage of the conveyed liquid is caused, the working performance of the plunger pump is influenced seriously, the liquid which is leaked simultaneously can cause a large environmental protection problem for chemical enterprises with corrosiveness and the like, and therefore the problems are solved by a novel sealing assembly.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a there is not plunger pump seal assembly that leaks to solve among the prior art because the sealed problem of influence plunger pump performance that leads to of easy wearing and tearing of current plunger and sealing box.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the utility model provides a no leakage plunger pump seal assembly, includes the plunger, cladding seal structure outside the plunger, this seal structure is including the seal assembly of cladding at the plunger outer wall and the sealed letter body of cladding at seal assembly and partial plunger, the preferred filler of graphite fiber and polytetrafluoroethylene fiber combination of packing material in the sealed letter body.
Further, bottom one side that seal assembly is close to the plunger is provided with the backing ring, the sealed letter body of bottom one side that the backing ring contact is close to the plunger, bottom one side that the plunger was kept away from to the backing ring is provided with a uide bushing, bottom one side that the plunger was kept away from to the uide bushing has set gradually four sealing washers, first bottom one side that the plunger was kept away from to the sealing washer is provided with the clamping ring bottom one side that the plunger was kept away from to the clamping ring is provided with the washing ring bottom one side that the plunger was kept away from to the washing ring is provided with a seal receptacle seal ring and space department between the washing ring still are provided with O type seal ring bottom one side that the plunger was kept away from to the sealing washer still is provided with a sealing washer and clamping ring in proper order plunger pump's upper end is.
Further, the flushing ring is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9; the shell of the sealing letter body is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9; the backing ring is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9; the flushing ring is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9; the sealing seat is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9.
Further, the guide sleeve is made of impregnated graphite, and the pressing ring is made of impregnated graphite.
Further, the sealing ring is made of carbon fiber, and the O-shaped sealing ring is made of butadiene-acrylonitrile rubber.
Furthermore, the sealing ring is made of carbon fiber.
Further, the surface of the plunger is provided with a coating, and the coating is made by adopting a hardening and spraying tungsten carbide technology.
The embodiment of the utility model provides a have following advantage: the corrosion resistance and the wear resistance of the composite filler are improved compared with the prior method of simply adopting graphite or polytetrafluoroethylene filler, the composite filler adopts the filler as a whole circle of filler without a notch, and the filler without the notch avoids the leakage of the conveying liquid at the notch part. The plunger surface adopts the sclerosis layer of special treatment, reduces wearing and tearing, reduces the corruption of conveying medium to the plunger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a cross-sectional view of a non-leakage plunger pump seal assembly according to an embodiment of the present invention.
In the figure: 1. a plunger; 2. sealing the box body; 3. a backing ring; 4. a guide sleeve; 5. a seal ring; 6. a space ring; 7. pressing a ring; 8. flushing the ring; 9. adjusting the nut; 10. an O-shaped seal ring; 11. and (4) a sealing seat.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b): the utility model provides a no leakage plunger pump seal assembly, as shown in fig. 1, including plunger 1, the cladding is at the outside seal structure of plunger 1, this seal structure is including the cladding at the seal assembly of plunger 1 outer wall and cladding at seal assembly and partial plunger 1's sealed letter 2, in this embodiment, seal assembly adopts the mode of a plurality of structure packing combinations to accomplish sealedly, specifically, this seal assembly includes a backing ring 3, a uide bushing 4, five sealing washer 5, four spacer rings 6, three clamping ring 7, a washing ring 8, an adjusting nut 9, an O type sealing washer 10 and a seal receptacle 11. This seal assembly is close to bottom one side of plunger 1 and is provided with backing ring 3, backing ring 3 contact is close to sealed letter 2 of bottom one side of plunger 1, bottom one side of keeping away from plunger 1 at backing ring 3 is provided with a uide bushing 4, bottom one side of keeping away from plunger 1 at uide bushing 4 has set gradually four sealing washer 5, bottom one side of keeping away from plunger 1 at first sealing washer 5 is provided with clamping ring 7, bottom one side of keeping away from plunger 1 at clamping ring 7 is provided with the purge ring, bottom one side of keeping away from plunger 1 at the purge ring is provided with a seal receptacle 11, gap department between seal receptacle 11 and purge ring 8 still is provided with O type seal ring 10, bottom one side of keeping away from plunger 1 at sealing washer 5 still is provided with a sealing washer 5 and clamping ring 7 in proper order, be provided with adjusting nut 9 and the cooperation of sealed letter 2 in the upper end of plunger 1 pump. The packing in the sealing box body 2 is preferably a combination of graphite fibers and polytetrafluoroethylene fibers, wherein the packing mode is a complete-circle packing mode without a notch. The surface of the plunger 1 is provided with a coating which is made by adopting a hardening and spraying tungsten carbide technology and is used for ensuring the wear resistance of the plunger 1.
The guide sleeve 4 and the pressing ring 7 are made of impregnated graphite, the sealing ring 5 is made of carbon fiber, the O-shaped sealing ring 10 is made of butadiene-acrylonitrile rubber, the sealing box body 2, the backing ring 3, the flushing ring 8 and the sealing seat 11 are made of stainless steel and heat-resistant steel and made into corresponding elements, and the adjusting nut 9 is made of an adjusting nut 9 with the model of 3Cr 13. The corrosion resistance and the wear resistance of the composite filler are improved compared with the prior method of simply adopting graphite or polytetrafluoroethylene filler, the composite filler adopts the filler as a whole circle of filler without a notch, and the filler without the notch avoids the leakage of the conveying liquid at the notch part. The surface of the plunger 1 adopts a specially treated hardened layer, so that the abrasion is reduced, and the corrosion of a conveying medium to the plunger 1 is reduced.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. A no leakage plunger pump seal assembly, characterized by: including plunger (1), the cladding is at the outside seal structure of plunger (1), and this seal structure is including the seal assembly of cladding at plunger (1) outer wall and cladding at seal assembly and partial plunger (1) sealed letter body (2), the filler material in sealed letter body (2) is the filler of graphite fiber and polytetrafluoroethylene fiber combination.
2. A leak free plunger pump seal assembly as set forth in claim 1 wherein: the sealing assembly is characterized in that a backing ring (3) is arranged on one side of the bottom, close to a plunger (1), of the sealing assembly, the backing ring (3) is in contact with a sealing box body (2) close to one side of the bottom of the plunger (1), a guide sleeve (4) is arranged on one side of the bottom, far away from the plunger (1), of the backing ring (3), four sealing rings (5) are sequentially arranged on one side of the bottom, far away from the plunger (1), of the guide sleeve (4), a pressing ring (7) is arranged on one side of the bottom, far away from the plunger (1), of the first sealing ring (5), a cleaning ring is arranged on one side of the bottom, far away from the plunger (1), of the cleaning ring, a sealing seat (11) is arranged on one side of the bottom, far away from the plunger (1), an O-shaped sealing ring (10) is further arranged at a gap between the sealing seat (11) and the cleaning ring (8), and a sealing ring (5) and a pressing, the upper end of the plunger (1) pump is provided with an adjusting nut (9) which is matched with the sealing box body (2).
3. A leak free plunger pump seal assembly as set forth in claim 2 wherein: the flushing ring (8) is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9; the shell of the sealing box body (2) is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9; the backing ring (3) is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9; the flushing ring (8) is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9; the sealing seat (11) is made of stainless steel heat-resistant steel with the model number of 0cr18ni 9.
4. A leak free plunger pump seal assembly as set forth in claim 2 wherein: uide bushing (4) that uide bushing (4) adopted impregnated graphite to make, clamping ring (7) adopt clamping ring (7) that impregnated graphite made.
5. A leak free plunger pump seal assembly as set forth in claim 2 wherein: the sealing ring (5) is made of carbon fibers, and the O-shaped sealing ring (10) is made of butadiene-acrylonitrile rubber and is an O-shaped sealing ring (5) made of carbon fibers.
6. A leak free plunger pump seal assembly as set forth in claim 2 wherein: the sealing ring (5) is made of carbon fibers.
7. A leak free plunger pump seal assembly as set forth in claim 2 wherein: the surface of the plunger (1) is provided with a coating, and the coating is prepared by adopting a hardening and spraying tungsten carbide technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020141758.8U CN212250433U (en) | 2020-01-20 | 2020-01-20 | Non-leakage plunger pump sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020141758.8U CN212250433U (en) | 2020-01-20 | 2020-01-20 | Non-leakage plunger pump sealing assembly |
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| Publication Number | Publication Date |
|---|---|
| CN212250433U true CN212250433U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020141758.8U Active CN212250433U (en) | 2020-01-20 | 2020-01-20 | Non-leakage plunger pump sealing assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046243A (en) * | 2021-11-10 | 2022-02-15 | 宝鸡航天动力泵业有限公司 | Sand prevention sealing device for plunger of horizontal directional drilling mud pump |
-
2020
- 2020-01-20 CN CN202020141758.8U patent/CN212250433U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046243A (en) * | 2021-11-10 | 2022-02-15 | 宝鸡航天动力泵业有限公司 | Sand prevention sealing device for plunger of horizontal directional drilling mud pump |
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