CN105508611A - Stuffing sealing structure and plunger pump with same - Google Patents
Stuffing sealing structure and plunger pump with same Download PDFInfo
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- CN105508611A CN105508611A CN201510828546.0A CN201510828546A CN105508611A CN 105508611 A CN105508611 A CN 105508611A CN 201510828546 A CN201510828546 A CN 201510828546A CN 105508611 A CN105508611 A CN 105508611A
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Abstract
The invention discloses a stuffing sealing structure and a plunger pump with same. The stuffing sealing structure comprises a stuffing box, a stuffing body and a locking part, wherein the stuffing body comprises metal stuffing and graphite stuffing; after being embedded, the metal stuffing and the graphite stuffing are arranged on the inner part of the stuffing box, and are axially locked in the stuffing box through the locking part; a convex lip is arranged on the metal stuffing; a concave lip is arranged on the graphite stuffing; the convex lip and the concave lip are in embedded connection; and at least one guide hole is formed in the metal stuffing. The stuffing sealing structure is good in rigidity, can be repeatedly utilized, is uniform in deformation, is great in opening amount, is long in service life, and has a self-sealing function.
Description
Technical field
The present invention relates to plunger pump technique field, especially relate to a kind of packing seal structure and the plunger pump with this packing seal structure.
Background technique
Tradition V-type filling-material structure adopts combining form, is made up of upper filler, intermediate filler, lower filler, and filler is unified adopts graphite fiber.Upper filler one end face is designed to convex V-type, and other end is plane; Lower filler is designed to recessed V-type, and other end is plane; Intermediate filler one end face is designed to recessed V-type, other end is convex V-structure.Upper filler and lower filler are respectively one, and intermediate filler is some, and adopt the compound mode work that concave-convex V type is fitted together to mutually, whole group of filler is placed in stuffing box.Wherein descend filler end face side to be provided with clamp ring, rotation lock nut reaches the whole group of effect sealed between filler and plunger, can carry out periodicity and lock operation.
Chinese patent literature (the day for announcing: on April 29th, 2015, notification number: CN104564646A) disclose a kind of plunger Sealing used for pump and plunger pump, seal arrangement comprises the pump cylinder with plunger hole, the plunger portion of plunger hole is stretched in one end, Stuffing box and friction top, Stuffing box is tubular, one end of Stuffing box is stretched in Seal cage, the other end is placed in outside Seal cage, Seal cage is the toroidal cavity in opposite directions between side face of plunger portion and plunger hole, there is collar flange one end that Stuffing box stretches into Seal cage, the outer circumferential face of Stuffing box and the inner peripheral surface Spielpassung of plunger hole, collar flange is towards the end face of plunger pump outside, space between the inner peripheral surface of Stuffing box and the outer circumferential face of plunger portion forms packing cavity, Sealing is had and compacted lid compression in packing cavity, seal ring is had between surface in opposite directions at Stuffing box and pump cylinder, seal arrangement is also paraded one's wealth dust seal and abrasionproof Sealing, sealing device can ensure sealing, facilitates the taking-up of Sealing, and has the function preventing dust in air from entering sealing surface, the plunger pump of above-mentioned seal arrangement is installed.
Chinese patent literature (day for announcing: on June 10th, 2015, notification number: CN204386866U) discloses a kind of anti-pricked filler assembly of plunger pump, and it comprises the stuffing box and the stuffing box gland supporting with this stuffing box that coordinate with the plunger of plunger pump; One end of described stuffing box gland has tapped hole, and the bottom of this tapped hole has a connectivity slot, this stuffing box gland also has one and wears and penetrate through hole, this wear penetrate through hole run through connectivity slot and tapped hole successively and with the inner space of described stuffing box; Wear described in plunger passes through and penetrate the inner chamber that through hole is placed in described stuffing box, this stuffing box is placed on the outer wall of plunger, and described stuffing box gland is by the top screwed connection of tapped hole and this stuffing box, and the chamber wall around described stuffing box top inner chamber has a standing groove.Axial for liquid high pressure thorn leaks by this patent, becomes the radial low-pressure leak of liquid, prevents because filler thorn leaks the generation of the machine oil denaturalization phenomenon caused, reduces risk of equipment damage, has saved and has scrapped the cost brought drop into because machine oil goes bad.
Chinese patent literature (day for announcing: on April 23rd, 2014, notification number: CN203560079U) discloses a kind of combined labyrinth and carbon gland filling-material structure, comprises packing box and Gland.Stuffing box packing structure is provided with 2 ~ 20 supporting rings, 2 ~ 20 interior sealing rubber rings and 2 ~ 20 external sealed rubber rings, and the two sides of supporting ring is respectively equipped with inner groovy and outer groove.Supporting ring is installed in packing box successively, interior sealing rubber ring and external sealed rubber ring be installed between two supporting rings, between supporting ring and Gland respectively and at the bottom of supporting ring and box between, interior sealing rubber ring is arranged in inner groovy, and external sealed rubber ring is arranged in outer groove.The utility model is by admixing by the reeded supporting ring of band, fluorine rubber the combined labyrinth and carbon gland filler that in conduction copper powder material, sealing rubber ring and external sealed rubber ring are formed, the pretightening force of effective control supporting ring, optimize the sealing effect of plunger pump, reduce and avoid the leakage of fed sheet of a media, improve the safety and reliability of oilfield sewage conveying.
The shortcoming of prior art: 1, whole group of filler required group number is many, and cost of material is high; 2, whole group of filler is single irreversible material, cannot again utilize after wearing and tearing; 3, each filler is soft materials, poor rigidity between filler, and V-type lip to strut degree little, locking number of times is few, and the locking cycle is short, and working life is short; 4, easily produce leakage between filler and stuffing box, whole group of filler is without self-styled; 5, greatly, during plunger reciprocates, friction Temperature Rise is fast, is difficult to the conveying realizing cryogenic liquide for filler and plunger contact area.
Summary of the invention
First goal of the invention of the present invention is to solve above-mentioned defect of the prior art, and provides one can increase filler rigidity, can reuse, and evenly, the amount of strutting is large, long service life, and the packing seal structure having self-sealing function in distortion.
The present invention's second goal of the invention is to provide a kind of plunger pump with packing seal structure.
The present invention realizes the technological scheme that its first goal of the invention adopt: a kind of packing seal structure, comprise filler body, described filler body comprises metallic stuffing and graphite packing, described metallic stuffing and graphite packing are fitting to connection, described metallic stuffing is provided with convex lip, described graphite packing is provided with recessed lip, and described convex lip and recessed lip are fitting to connection, and described metallic stuffing are provided with at least one pod apertures.This packing seal structure, by designing filler body structure, it is the sealing that a metallic stuffing and a graphite packing coordinate by pure graphite packing Seal Design, metallic stuffing arranges convex lip, graphite material is provided with recessed lip, it is inner mutually chimeric that convex lip is inserted into recessed lip, is provided with at least one pod apertures in metallic stuffing simultaneously.When using this packing seal structure, this packing seal structure is arranged on fluid end or other equipment sealings place of plunger pump, be arranged in stuffing box after metallic stuffing and graphite packing Assembly, graphite packing directly contacts with plunger, metallic stuffing does not then contact with plunger, and locking element is carried out axial locking according to seal request, this packing seal structure only need use 1-2 group can meet the requirement of seal leakage amount, convex lip one end of metallic stuffing embeds in the recessed lip of graphite packing, stuffing box is withstood in one end metallic stuffing, the other end relies on locking element to withstand graphite packing and fixes.Graphite packing recessed bead structure form is strutted by the convex lip of metallic stuffing when locking and regulating, the good rigidly of metal, the recessed lip of graphite packing can be made evenly to strut, the amount of strutting is large, longer service life, greatly, locking is often for metallic stuffing simultaneously and graphite packing axial space, the locking cycle is long, long service life.When device systems Liquid Penetrant enters in metallic stuffing, part liquid will fill in the recessed lip of graphite packing, another part will enter in the recessed lip of graphite packing and the direct contacting point of stuffing box through pod apertures, rely on liquid self pressure of being with, recessed lip is radially strutted toward both direction, the complete oneself of passage that can be revealed by liquid shuts, and reaches the object that filler is self-styled.This packing seal structure good rigidly, can reuse, and evenly, the amount of strutting is large, long service life, and has self-sealing function in distortion.
As preferably, described graphite packing is frustum vibrational power flow, described recessed lip is along the large end being axially disposed within graphite packing of graphite packing, and the inside of described graphite packing is provided with cone shape hole, and the small end of the corresponding frustum structure of large end of described cone shape hole is arranged.Graphite packing is set to said structure, ensure that the graphite packing amount of strutting reaches optimised quantity, the area of contact of the counterpart such as cone-shaped inner hole and plunger is little simultaneously, can ensure that the counterparts such as plunger produce less temperature rise, realizes carrying the such as volatile liquid of the low temperature such as dry ice, freon.
As preferably, the internal diameter of described metallic stuffing is greater than the aperture of the large end of graphite packing cone shape hole.The internal diameter of metallic stuffing is greater than the aperture of the large end of graphite packing cone shape hole, and namely ensure that metallic stuffing internal diameter contact with the counterpart such as plunger, can not produce wearing and tearing, metallic stuffing can be reused, saving cost.
As preferably, described metallic stuffing comprises chimeric end and top pressure side, described convex lip is outwards wholely set along chimeric end, described pod apertures is arranged on the chimeric circumferential surface held and close top pressure side and arranges, the end face of described top pressure side is plane, the circumferential surface section of described top pressure side is trapezium structure, and the end face top of described top pressure side is pressed in bottom stuffing box, and the described circumferential surface of top pressure side and the disc of stuffing box are sealed and matched.The said structure of metallic stuffing had both facilitated realization to strut and axial locking the radial direction of graphite packing, can ensure sealing effect again.
As preferably, described pod apertures is provided with two, and two pod apertures are arranged in metallic stuffing along the axisymmetrical of metallic stuffing.Two pod apertures ensure graphite packing uniform stressed, wear and tear also even.
As preferably, the U-shaped vibrational power flow of recessed lip, corresponding convex lip is also set to U-shaped structure.Such structure is fitted together to effective.
The present invention realizes the technological scheme that second goal of the invention adopts: a kind of plunger pump with packing seal structure, comprise pump head, import check valve assembly, Outlet check valves assembly, pump head pressing plate and connector, described pump head inside is provided with fluid passage, described Outlet check valves assembly and import check valve assembly to be coaxially set on pump head and to be communicated with fluid passage respectively, described packing seal structure is arranged on hydraulic end of plunger pump and coordinates with plunger, and it is inner and by locking element axial locking that described packing seal structure is arranged on stuffing box.Should with the plunger pump of packing seal structure, the convex lip of metallic stuffing embeds in the recessed lip of graphite packing, and stuffing box is withstood in one end of metallic stuffing, and the other end relies on locking element to withstand graphite packing and fixes.The recessed bead structure form of graphite packing is strutted by the convex lip of metallic stuffing when locking and regulating, the good rigidly of metal, the recessed lip of graphite packing can be made evenly to strut, the amount of strutting is large, longer service life, simultaneously metallic stuffing and graphite packing axial space large, locking often, the locking cycle is long, long service life, when liquid is permeated by plunger surface through fluid passage in stuffing box, now penetrate into the liquid in metallic stuffing, a part is by the recessed lip of full graphite packing and the direct contacting point of plunger, another part will enter in the recessed lip of graphite packing and the direct contacting point of stuffing box through pod apertures, when system pressure penetrates in the recessed lip of graphite packing through fluid passage, rely on liquid self pressure of being with, by recessed lip radially toward plunger periphery, stuffing box inwall both direction struts, the complete oneself of passage that can be revealed by liquid shuts, reach the object that filler is self-styled.
As preferably, described stuffing box coordinates with plunger, it is inner and by locking element axial locking in stuffing box that described filler body is combined in stuffing box, the internal diameter of described metallic stuffing is away from the external diameter of plunger, the tapered hole of internal diameter of described graphite packing is arranged, the small end of described cone shape hole arranges towards the one end arranging recessed lip and coordinates with plunger seal, and the large end of cone shape hole is separated with plunger outer diameter.When the operation of piston reciprocation straight line motion, metallic stuffing does not contact completely with plunger, can realize the Reusability of metallic stuffing, reaches cost-effective object.Graphite packing is owing to being provided with cone shape hole, and the surface of contact of cone shape hole and plunger is only the sub-fraction on inclined-plane, and area of contact is little, can ensure that plunger produces less temperature rise, realizes carrying the such as volatile liquid of the low temperature such as dry ice, freon.
As preferably, described metallic stuffing comprises chimeric end and top pressure side, described convex lip is outwards wholely set along chimeric end, described pod apertures is arranged on the chimeric circumferential surface held and close top pressure side and arranges, the end face of described top pressure side is plane, the circumferential surface section of described top pressure side is trapezium structure, and the end face top of described top pressure side is pressed in bottom stuffing box, and the described circumferential surface of top pressure side and the disc of stuffing box are sealed and matched.Metallic stuffing and graphite packing is facilitated to be combined by the form of inlaying, realize strutting graphite packing, metallic stuffing designs multiple water conservancy diversion aperture and insert the liquid in recessed lip, Help of System pressure can strut recessed lip, thus increase the function of self-styled, reduce manual tune number of times.
As preferably, the U-shaped vibrational power flow of recessed lip, corresponding convex lip is also set to U-shaped structure.
The invention has the beneficial effects as follows: 1. adopt the sealing configuration pattern that metallic stuffing and graphite packing are combined, filler group number is few, and cost of material is little, and between filler, rigidity significantly promotes; 2, after wearing and tearing completely with the graphite packing of plunger contact, metallic stuffing can be reused, to reach cost-effective object; 3, graphite packing one end face adopts U-shaped recessed bead structure form, is strutted by metallic stuffing when locking and regulating, and distortion evenly, the amount of strutting is large, longer service life, metallic stuffing simultaneously and graphite packing axial space large, often, the locking cycle is long, long service life in locking; 4, metallic stuffing is provided with pod apertures, can water conservancy diversion working medium in U-shaped recessed lip, strut U-shaped lip uniformly by liquid self pressure of being with, reach self-styled effect; 5, the tapered hole of the bore design of graphite packing and plunger contact, the area of contact with plunger can be reduced, reduce graphite packing wearing and tearing, greatly reduce plunger temperature rise, the such as volatile liquid of the low temperature such as dry ice, freon is carried in realization, and does not still affect its sealing effect.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of packing seal structure of the present invention;
Fig. 2 is hydraulic end of plunger pump part-structure schematic diagram of the present invention;
In figure: 1, stuffing box, 2, filler body, 3, locking element, 4, metallic stuffing, 5, graphite packing, 6, convex lip, 7, recessed lip, 8, pod apertures, 9, cone shape hole, 10, chimeric end, 11, top pressure side, 12, pump head, 13, import check valve assembly, 14, Outlet check valves assembly, 15, pump head pressing plate, 16, connector, 17, fluid passage, 18, plunger.
Embodiment
Also by reference to the accompanying drawings technological scheme of the present invention is described in further detail below by specific embodiment.
Embodiment 1:
In the embodiment shown in fig. 1, a kind of packing seal structure, comprises filler body 2 He, filler body 2 comprises metallic stuffing 4 and graphite packing 5, metallic stuffing 4 and graphite packing 5 are fitting to connection mutually, metallic stuffing 4 are provided with convex lip 6, and convex lip 6 also arranges U-shaped structure.Graphite packing 5 is provided with recessed lip 7, the U-shaped vibrational power flow of recessed lip 7, convex lip 6 is fitting to connection with recessed lip 7, metallic stuffing 4 is provided with at least one pod apertures 8.In the present embodiment, pod apertures 8 arranges two, and two pod apertures ensure graphite packing uniform stressed, wear and tear also even.
Graphite packing 5 is in frustum vibrational power flow, and recessed lip 7 is along the large end being axially disposed within graphite packing 5 of graphite packing 5, and the inside of graphite packing 5 is provided with cone shape hole 9, and the small end of the corresponding frustum structure of large end of cone shape hole 9 is arranged.The internal diameter of metallic stuffing 4 is greater than the aperture of the large end of graphite packing cone shape hole 9.
Metallic stuffing 4 comprises chimeric end 10 and top pressure side 11, convex lip 6 is outwards wholely set along chimeric end 10, the circumferential surface that pod apertures 8 is arranged on chimeric end 10 is arranged near top pressure side 11, the end face of top pressure side 11 is plane, the circumferential surface section of top pressure side 11 is trapezium structure, the end face top of top pressure side 11 is pressed in bottom stuffing box 1, and the top circumferential surface of pressure side 11 and the disc of stuffing box 1 are sealed and matched.
A kind of plunger pump (see figure 2) with packing seal structure, comprise pump head 12, import check valve assembly 13, Outlet check valves assembly 14, pump head pressing plate 15 and connector 16, pump head 12 inside is provided with fluid passage 17, Outlet check valves assembly 14 and import check valve assembly 13 to be coaxially set on pump head 12 and to be communicated with fluid passage 17 respectively, packing seal structure is arranged on hydraulic end of plunger pump and coordinates with plunger 18, and it is inner and by locking element 3 axial locking that packing seal structure is arranged on stuffing box 1.Filler body 2 comprises metallic stuffing 4 and graphite packing 5, and be arranged on stuffing box 1 inside after metallic stuffing 4 and graphite packing 5 are fitted together to and by locking element 3 axial locking in stuffing box 1, metallic stuffing 4 be provided with convex lip 6, convex lip 6 also arranges U-shaped structure.Graphite packing 5 is provided with recessed lip 7, the U-shaped vibrational power flow of recessed lip 7, convex lip 6 is fitting to connection with recessed lip 7, metallic stuffing 4 is provided with at least one pod apertures 8.Stuffing box 1 coordinates with plunger 18, it is inner and by locking element 3 axial locking in stuffing box 1 that filler body 2 is combined in stuffing box 1, the internal diameter of metallic stuffing 4 is away from the external diameter of plunger 18, the tapered hole 9 of internal diameter of graphite packing 5 is arranged, the small end of cone shape hole 9 arranges towards the one end arranging recessed lip 7 and is sealed and matched with plunger 18, along locking, direction is descending successively decreases in the aperture of cone shape hole, and the large end of cone shape hole 9 is separated with plunger 18 external diameter.
Metallic stuffing 4 comprises chimeric end 10 and top pressure side 11, convex lip 6 is outwards wholely set along chimeric end 10, the circumferential surface that pod apertures 8 is arranged on chimeric end 10 is arranged near top pressure side 11, the end face of top pressure side 11 is plane, the circumferential surface section of top pressure side 11 is trapezium structure, the end face top of top pressure side 11 is pressed in bottom stuffing box 1, and the top circumferential surface of pressure side 11 and the disc of stuffing box 1 are sealed and matched.
This packing seal structure and the plunger pump with sealing structure, be arranged in stuffing box 1 after metallic stuffing 4 and graphite packing 5 Assembly, graphite packing 5 directly contacts with plunger 18, then metallic stuffing 4 does not contact with plunger 18.This packing seal structure only need use 1-2 group, and can reach the requirement of the plunger packing seal leakage amount required by plunger pump standard GB/T/T7782, realize cost-effective object, metallic stuffing 4 good rigidly, contributes to graphite packing 5 evenly softened.
Metallic stuffing 4 is embedded in the U-shaped recessed lip 7 of a circle of graphite packing 5 by the convex lip 6 of the U-shaped structure of evagination, and stuffing box 1 is withstood in one end of metallic stuffing 4, and the other end relies on locking element 3 to withstand graphite packing 5 and fixes.The U-shaped recessed bead structure form of graphite packing 5 is strutted by the convex lip 6 of metallic stuffing 4 when locking and regulating, the good rigidly of metal, the U-shaped recessed lip 7 of graphite packing 5 can be made evenly to strut, the amount of strutting is large, longer service life, metallic stuffing simultaneously 4 is large with graphite packing 5 axial space, and locking is often, the locking cycle is long, long service life.
During use, liquid is permeated by plunger 18 surface through fluid passage 17 in stuffing box 1, now penetrate into the liquid in metallic stuffing 4, a part is by the U-shaped recessed lip 7 of direct to full graphite packing 5 and plunger 18 contacting point, another part will enter graphite packing 5 with in the U-shaped recessed lip 7 of the direct contacting point of stuffing box 1 through pod apertures 8, when system pressure penetrates in the U-shaped recessed lip 7 of graphite packing 5 through fluid passage 17, rely on liquid self pressure of being with, by U-shaped recessed lip 7 radially toward " plunger 18 periphery ", " stuffing box 1 inwall " both direction struts, the complete oneself of passage that can be revealed by liquid shuts, reach the object that filler is self-styled.
When plunger 18 linear reciprocating motion operation, metallic stuffing 4 does not contact completely with plunger 18, can realize the Reusability of metallic stuffing 4, reaches cost-effective object; Graphite packing 5 is only the sub-fraction on inclined-plane with the surface of contact of plunger 18, and area of contact is little, can ensure that plunger 18 produces less temperature rise, realizes carrying the such as volatile liquid of the low temperature such as dry ice, freon.
Claims (10)
1. a packing seal structure, comprise filler body (2), it is characterized in that: described filler body (2) comprises metallic stuffing (4) and graphite packing (5), described metallic stuffing (4) and graphite packing (5) are fitting to connection, described metallic stuffing (4) is provided with convex lip (6), described graphite packing (5) is provided with recessed lip (7), described convex lip (6) and recessed lip (7) are fitting to connection mutually, and described metallic stuffing (4) is provided with at least one pod apertures (8).
2. a kind of packing seal structure according to claim 1, it is characterized in that: described graphite packing (5) is in frustum vibrational power flow, described recessed lip (7) is along the large end being axially disposed within graphite packing (5) of graphite packing (5), the inside of described graphite packing (5) is provided with cone shape hole (9), and the small end of the corresponding frustum structure of large end of described cone shape hole (9) is arranged.
3. a kind of packing seal structure according to claim 2, is characterized in that: the internal diameter of described metallic stuffing (4) is greater than the aperture of the large end of graphite packing cone shape hole (9).
4. a kind of packing seal structure according to claim 1, it is characterized in that: described metallic stuffing (4) comprises chimeric end (10) and top pressure side (11), described convex lip (6) is outwards wholely set along chimeric end (10), the circumferential surface that described pod apertures (8) is arranged on chimeric end (10) is arranged near top pressure side (11), the end face of described top pressure side (11) is plane, the circumferential surface section of described top pressure side (11) is trapezium structure, the end face top of described top pressure side (11) is pressed in stuffing box (1) bottom, the circumferential surface of described top pressure side (11) and the disc of stuffing box (1) are sealed and matched.
5. a kind of packing seal structure according to claim 1, is characterized in that: described pod apertures is provided with two, and two pod apertures are arranged in metallic stuffing (4) along the axisymmetrical of metallic stuffing.
6. a kind of packing seal structure according to claim 1 or 2 or 3 or 4 or 5, is characterized in that: recessed lip (7) U-shaped vibrational power flow, and corresponding convex lip (6) is also set to U-shaped structure.
7. the plunger pump with packing seal structure according to claim 1, it is characterized in that: comprise pump head (12), import check valve assembly (13), Outlet check valves assembly (14), pump head pressing plate (15) and connector (16), described pump head (12) inside is provided with fluid passage (17), described Outlet check valves assembly (14) and import check valve assembly (13) are coaxially set upper and be communicated with fluid passage (17) respectively at pump head (12), described packing seal structure is arranged on hydraulic end of plunger pump and coordinates with plunger (18), it is inner also by locking element (3) axial locking that described packing seal structure is arranged on stuffing box (1).
8. a kind of plunger pump with packing seal structure according to claim 7, it is characterized in that: described stuffing box (1) coordinates with plunger (18), described filler body (2) is combined in stuffing box (1) inside and passes through locking element (3) axial locking in stuffing box (1), the internal diameter of described metallic stuffing (4) is away from the external diameter of plunger (18), the tapered hole of internal diameter (9) of described graphite packing (5) is arranged, the small end of described cone shape hole (9) arranges towards the one end arranging recessed lip (7) and is sealed and matched with plunger (18), the large end of cone shape hole (9) is separated with plunger (18) external diameter.
9. a kind of plunger pump with packing seal structure according to claim 7, it is characterized in that: described metallic stuffing (4) comprises chimeric end (10) and top pressure side (11), described convex lip (6) is outwards wholely set along chimeric end (10), the circumferential surface that described pod apertures (8) is arranged on chimeric end (10) is arranged near top pressure side (11), the end face of described top pressure side (11) is plane, the circumferential surface section of described top pressure side (11) is trapezium structure, the end face top of described top pressure side (11) is pressed in stuffing box (1) bottom, the circumferential surface of described top pressure side (11) and the disc of stuffing box (1) are sealed and matched.
10. a kind of plunger pump with packing seal structure according to claim 7 or 8 or 9, is characterized in that: recessed lip (7) U-shaped vibrational power flow, and corresponding convex lip (6) is also set to U-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828546.0A CN105508611A (en) | 2015-11-25 | 2015-11-25 | Stuffing sealing structure and plunger pump with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828546.0A CN105508611A (en) | 2015-11-25 | 2015-11-25 | Stuffing sealing structure and plunger pump with same |
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| Publication Number | Publication Date |
|---|---|
| CN105508611A true CN105508611A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510828546.0A Pending CN105508611A (en) | 2015-11-25 | 2015-11-25 | Stuffing sealing structure and plunger pump with same |
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| Country | Link |
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| CN (1) | CN105508611A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209854A (en) * | 2018-09-29 | 2019-01-15 | 江苏同济分析仪器有限公司 | A kind of plunger seal of high pressure constant flow pump |
| CN112128464A (en) * | 2020-10-13 | 2020-12-25 | 李志双 | Anti-freezing water valve with self-sealing slow-setting filler |
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| CN102943883A (en) * | 2012-11-23 | 2013-02-27 | 四川中自尾气净化有限公司 | Elastic seal positioning device |
| CN203202214U (en) * | 2013-04-11 | 2013-09-18 | 浙江力高泵业科技有限公司 | Packing seal assembly for plunger metering pump |
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| GB533460A (en) * | 1938-11-15 | 1941-02-13 | Giovanni Farina | Improvements relating to packings for high pressure hydraulic pistons, more particularly for cylinders of hydraulic transmission for vehicle brakes |
| DE2610730A1 (en) * | 1976-03-13 | 1977-09-22 | Daimler Benz Ag | Shaft seal with pressurized ring chamber - has outer U-shape steel sleeve and inner inverted U-section elastic ring |
| CN2539883Y (en) * | 2002-04-18 | 2003-03-12 | 贾伟 | Low temp. liquid reciprocating pump sealing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209854A (en) * | 2018-09-29 | 2019-01-15 | 江苏同济分析仪器有限公司 | A kind of plunger seal of high pressure constant flow pump |
| CN112128464A (en) * | 2020-10-13 | 2020-12-25 | 李志双 | Anti-freezing water valve with self-sealing slow-setting filler |
| CN112128464B (en) * | 2020-10-13 | 2022-08-12 | 青岛开元阀门有限公司 | Anti-freezing water valve with self-sealing slow-setting filler |
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Address after: No. 46 Hangzhou City, Zhejiang province 311100 Yuhang District Renhe Street Renhe Road Applicant after: Southern Gold environment Limited by Share Ltd Address before: Renhe Town of Yuhang District of Hangzhou City, Zhejiang province 311107 Applicant before: Nanfang Pump Industry Co.,Ltd. |
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Application publication date: 20160420 |