CN205025814U - Corrosion -resistant mechanical seal chemical pump - Google Patents
Corrosion -resistant mechanical seal chemical pump Download PDFInfo
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- CN205025814U CN205025814U CN201520790027.5U CN201520790027U CN205025814U CN 205025814 U CN205025814 U CN 205025814U CN 201520790027 U CN201520790027 U CN 201520790027U CN 205025814 U CN205025814 U CN 205025814U
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- ring
- pump
- corrosion
- impeller
- chamber cap
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Abstract
The utility model discloses a corrosion -resistant mechanical seal chemical pump, including the pump shaft, shell subassembly and the impeller that is located the shell subassembly, a spindle sleeve, the rotating ring subassembly, quiet ring subassembly and elastomeric element, the impeller is fixed in the one end of pump shaft, rotating ring subassembly and the equal suit of axle sleeve are outside the pump shaft, quiet ring subassembly and elastomeric element suit are outside the axle sleeve, the impeller, the rotating ring subassembly, quiet ring subassembly and elastomeric element's one end is the butt in proper order, elastomeric element's the other end and shell subassembly butt, the shell subassembly includes the chamber cap, the chamber cap suit is outside quiet ring subassembly, the chamber cap is equipped with to the quiet convex spacing portion of ring subassembly, be equipped with quiet ring sealing washer between chamber cap and the quiet ring subassembly, quiet ring sealing washer is located one side that the rotating ring subassembly is close to in spacing portion. From this, the sealed effect of quiet ring sealing washer, make on the chamber cap convex spacing portion not can with medium direct contact, can not produce corrosive effects to spacing portion, spacing portion can work more durablely, makes the whole corrosion resistance of chemical pump improve, the life extension.
Description
Technical field
The utility model relates to a kind of chemical pump, particularly a kind of corrosion-resisting mechanical seal chemical pump.
Background technique
The chemical pump of prior art generally includes housing and pump shaft, one end of pump shaft is supported by bearing support, the other end is placed in housing and cover has impeller, on pump shaft, the rear sleeve of impeller has axle sleeve, rotating ring on being provided with between axle sleeve and impeller, axle sleeve is provided with stationary ring and elastic sleeve, rotating ring and stationary ring are closely abutted against and form dynamic cooperation, also chamber cap is provided with outward at rotating ring and stationary ring, chamber cap be provided with to rotating ring protrude limited part with spacing rotating ring, between chamber cap and stationary ring, be also provided with seal ring to prevent dielectric leakage.Chamber cap limited part is long-term and medium contact then, and easily produce corrosion and damage, make the life-span of chemical pump not long, usability is not good.
Model utility content
The purpose of this utility model is the corrosion-resisting mechanical seal chemical pump providing a kind of good corrosion resistance, long service life.
According to an aspect of the present utility model, provide corrosion-resisting mechanical seal chemical pump, comprise pump shaft, casing assembly and the impeller being positioned at casing assembly, axle sleeve, moving ring assembly, static components and elastic member, impeller is fixed on one end of pump shaft, moving ring assembly and axle sleeve are all set in outside pump shaft, static components and elastic member are set in outside axle sleeve, impeller, moving ring assembly, one end of static components and elastic member abuts successively, the other end of elastic member abuts with casing assembly, casing assembly comprises chamber cap, chamber cap is set in outside static components, chamber cap is provided with the limited part protruded to static components, stationary ring seal ring is provided with between chamber cap and static components, stationary ring seal ring is positioned at the side of limited part near moving ring assembly.
The beneficial effects of the utility model are: by preposition for the stationary ring seal ring limited part that arrives near the side of moving ring assembly, due to the seal action of stationary ring seal ring, the limited part in use chamber cap protruded has meeting and physical contact between media, corrosive action can not be produced to limited part, limited part can work more enduringly, makes that the overall corrosion resistance of chemical pump improves, working life extends.
In some embodiments, moving ring assembly comprises rotating seat and rotating ring, and rotating seat is set in outside pump shaft, moving ring sleeve is loaded on outside axle sleeve, the side of rotating seat abuts with impeller, and the opposite side of rotating seat abuts with the side of rotating ring, and the opposite side of rotating ring abuts with static components.Thus, pump shaft rotates and can impeller, axle sleeve, rotating seat together rotate, and rotating seat then can drive rotating ring rotate and shield to rotating ring.
In some embodiments, the outer edge radius of rotating seat is greater than the outer edge radius of rotating ring, and the outer rim of rotating seat is bending to rotating ring direction.Thus, rotating seat can prevent medium from scratching rotating ring, plays a protective role to rotating ring.Reasonable in design, long service life.
In some embodiments, static components comprises stationary ring and stationary ring pallet, and the side of stationary ring abuts with rotating ring, and the opposite side of stationary ring abuts with the side of stationary ring pallet, and the opposite side of stationary ring pallet abuts with elastic member.Thus, stationary ring, stationary ring pallet and elastic member do not rotate, a pair friction sealed end face is formed between stationary ring and rotating ring, elastic member pushes against stationary ring makes seal face remain sealing state, when seal face is worn because relatively rotating for a long time, elastic member can play the effect of buffer compensation, and the elastic force of elastic member makes seal face remain the state of fitting tightly.
In some embodiments, pump shaft is provided with the pump shaft shaft shoulder, and rotating seat connects with axle sleeve and between impeller and the pump shaft shaft shoulder.Thus, impeller and the pump shaft shaft shoulder clamp rotating seat and axle sleeve, pump shaft can be driven press ring seat to rotate together with axle sleeve.Linkage structure can be simplified.
In some embodiments, elastic member is spring.Thus, the elastic strain distance of spring is large, and elasticity is strong, long service life.
In some embodiments, seal ring of moving ring is provided with between rotating ring and rotating seat.Thus, dielectric leakage can be prevented.
In some embodiments, casing assembly also comprises pump case, pump chamber, pump cover, overcoat and bearing support, pump case is fixedly connected with pump cover and grips pump chamber and chamber cap, pump chamber is set in impeller outer and is fixedly connected with overcoat, coat suit is outer and be fixedly connected with chamber cap in elastic member, overcoat abuts with elastic member, and bearing sleeve is loaded on outside pump shaft, and bearing support is fixedly connected with pump chamber.Thus, casing assembly can play to the parts of its inside the effect supporting and seal.
In some embodiments, between overcoat and pump chamber, be provided with overcoat seal ring, between pump chamber and chamber cap, be provided with chamber cap seal ring.Thus, can prevent medium from leaking between pump chamber and chamber cap.
Accompanying drawing explanation
Fig. 1 is the structural representation of the corrosion-resisting mechanical seal chemical pump of the utility model one mode of execution;
The cooperating structure schematic diagram of the axle sleeve that Fig. 2 is the corrosion-resisting mechanical seal chemical pump shown in Fig. 1, moving ring assembly, static components and elastic member.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 and Fig. 2 show schematically show the corrosion-resisting mechanical seal chemical pump according to a kind of mode of execution of the present utility model.
See figures.1.and.2, corrosion-resisting mechanical seal chemical pump, is characterized in that: comprise pump shaft 1, casing assembly 8 and be positioned at the impeller 2 of casing assembly 8, axle sleeve 3, moving ring assembly 4, static components 5 and elastic member 6.One end of pump shaft 1 is positioned at casing assembly 8, and the other end stretches out outside casing assembly 8.Impeller 2 is threaded connection the one end being fixed on pump shaft 1, and moving ring assembly 4 and axle sleeve 3 are all set in outside pump shaft 1, and static components 5 and elastic member 6 are set in outside axle sleeve 3.One end of impeller 2, moving ring assembly 4, static components 5 and elastic member 6 abuts successively, and the other end of elastic member 6 abuts with casing assembly 8.Casing assembly 8 comprises chamber cap 81, chamber cap 81 is set in outside static components 5, chamber cap 81 is provided with the limited part 811 protruded to static components 5, and be provided with stationary ring seal ring 91 between chamber cap 81 and static components 5, stationary ring seal ring 91 is positioned at the side of limited part 811 near moving ring assembly 4.Due to the seal action of stationary ring seal ring 91, when not occurring to leak, medium can not contact with limited part 811 and corrode limited part 811, makes the longer service life of limited part 811, and structural design is more reasonable, and the overall corrosion resistance of chemical pump is improved.
Moving ring assembly 4 comprises rotating seat 41 and rotating ring 42, rotating seat 41 is set in outside pump shaft 1, and rotating ring 42 is set in outside axle sleeve 3, and the side of rotating seat 41 abuts with impeller 2, the opposite side of rotating seat 41 abuts with the side of rotating ring 42, and the opposite side of rotating ring 42 abuts with static components 5.The outer edge radius of rotating seat 41 is greater than the outer edge radius of rotating ring 42, and the outer rim of rotating seat 41 is bending to rotating ring 42 direction.Rotating seat 41 can be scratched by the large particle in medium by anti-stop ring 5, plays a protective role to rotating ring 5.Be provided with seal ring of moving ring 92 between rotating ring 51 and rotating seat 52, can avoid leaking between medium driven torus 51 and rotating seat 52.
Static components 5 comprises stationary ring 51 and stationary ring pallet 52, and the side of stationary ring 51 abuts with rotating ring 42, and the opposite side of stationary ring 51 abuts with the side of stationary ring pallet 52, and the opposite side of stationary ring pallet 52 abuts with elastic member 6.Stationary ring pallet 52 can bear the resilient pressure of elastic member 6 and pass to stationary ring 51, makes to keep close contact between stationary ring 51 and rotating ring 5, and stationary ring pallet 52 can play effect that is stable and protection stationary ring 51.
Elastic member 6 is preferably spring.The elastic force of spring is strong, and long service life also can realize comparatively large deformation, makes the long service life of mechanical seal chemical pump of the present utility model and good seal performance.
Pump shaft 1 is provided with the pump shaft shaft shoulder 11, and rotating seat 41 connects with axle sleeve 3 and between impeller 2 and the pump shaft shaft shoulder 11, rotating seat 41 and axle sleeve 3 are clamped by impeller 2 and the pump shaft shaft shoulder 11.Shaft filler washer 10 is provided with between axle sleeve 3 and the pump shaft shaft shoulder 11.Thus, can impeller 2, rotating seat 41 and axle sleeve 3 together rotate when pump shaft 1 rotates, rotating seat 41 then drives rotating ring 51 to rotate by seal ring of moving ring 92.Stationary ring 51, stationary ring pallet 52 and elastic member 6 do not rotate.Surface of contact between rotating ring 42 and stationary ring 51 forms a pair friction sealed end face, relies on the elastic force of elastic member 6 friction sealed end face to be fitted tightly, to prevent dielectric leakage.After the surface abrasion of friction sealed end face, can realize compensating under the promotion of the elastic force of elastic member 6, guarantee that friction sealed end face fits tightly all the time.
Casing assembly 8 also comprises pump case 82, pump chamber 83, pump cover 84, overcoat 85 and bearing support 86 and rear pressing cover 87.Pump case 82 is fixedly connected with pump cover 84 screw thread and grips pump chamber 83 and chamber cap 81, pump chamber 83 is set in outside impeller 2, pump chamber 83 is provided with material feeding mouth 831, discharge port 832 and pump chamber chamber 833, and material feeding mouth 831 is communicated with by pump chamber chamber 833 with discharge port 832, and impeller 2 is positioned at pump chamber chamber 833.Material feeding mouth 831 is just to the central position of impeller 2, and discharge port 832 is corresponding with the marginal position of impeller 2.Pump shaft 1 impeller 2 is rotated and is produced centrifugal force and medium can be made to enter after in pump chamber chamber 833 from material feeding mouth 834 be sent from discharge port 835 again.Pump case 82 is connected with pump cover 84 bolt and clamps pump chamber 83 and chamber cap 81, and chamber cap 81 is fixedly connected with overcoat 85 screw thread.It is outer and be fixedly connected with chamber cap 81 that overcoat 85 is set in elastic member 6, overcoat 85 abuts with elastic member 6, be provided with bearing 88 between bearing support 86 and pump shaft 1, bearing support 86 and pump shaft 1 are rotatably connected by bearing 88 and can to realize bearing support 86 relative fixing with pump shaft 1 position in the axial direction.One end of bearing support 86 is fixedly connected with pump cover 84 screw thread, and the other end of bearing support 86 is fixedly connected with rear pressing cover 87 screw thread.
Be provided with overcoat seal ring 93 between overcoat 85 and pump chamber 83, between pump chamber 83 and chamber cap 81, be provided with chamber cap seal ring 94.
Overcoat 85 is also provided with pipe joint 89.When pump occurs to leak, medium can flow out from pipe joint 89, can leak by Timeliness coverage, thus shutdown maintenance, avoid medium to the corrosion of other parts of pump.
The reasonable in design of mechanical seal chemical pump of the present utility model, by the perfect cooperation of each parts, makes the good corrosion resistance of pump, good seal performance, long service life.
Above-described is only mode of executions more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (9)
1. corrosion-resisting mechanical seal chemical pump, it is characterized in that: comprise pump shaft (1), casing assembly (8) and be positioned at the impeller (2) of casing assembly (8), axle sleeve (3), moving ring assembly (4), static components (5) and elastic member (6), described impeller (2) is fixed on one end of pump shaft (1), described moving ring assembly (4) and axle sleeve (3) are all set in pump shaft (1) outward, described static components (5) and elastic member (6) are set in axle sleeve (3) outward, described impeller (2), moving ring assembly (4), one end of static components (5) and elastic member (6) abuts successively, the other end of described elastic member (6) abuts with casing assembly (8), described casing assembly (8) comprises chamber cap (81), described chamber cap (81) is set in static components (5) outward, described chamber cap (81) is provided with the limited part (811) protruded to static components (5), stationary ring seal ring (91) is provided with between described chamber cap (81) and static components (5), described stationary ring seal ring (91) is positioned at the side of limited part (811) near moving ring assembly (4).
2. corrosion-resisting mechanical seal chemical pump according to claim 1, it is characterized in that: described moving ring assembly (4) comprises rotating seat (41) and rotating ring (42), described rotating seat (41) is set in pump shaft (1) outward, described rotating ring (42) is set in axle sleeve (3) outward, the side of described rotating seat (41) abuts with impeller (2), the opposite side of described rotating seat (41) abuts with the side of rotating ring (42), and the opposite side of described rotating ring (42) abuts with static components (5).
3. corrosion-resisting mechanical seal chemical pump according to claim 2, it is characterized in that: the outer edge radius of described rotating seat (41) is greater than the outer edge radius of rotating ring (42), the outer rim of described rotating seat (41) is bending to rotating ring (42) direction.
4. corrosion-resisting mechanical seal chemical pump according to claim 2, it is characterized in that: described static components (5) comprises stationary ring (51) and stationary ring pallet (52), the side of described stationary ring (51) abuts with rotating ring (42), the opposite side of described stationary ring (51) abuts with the side of stationary ring pallet (52), and the opposite side of described stationary ring pallet (52) abuts with elastic member (6).
5. corrosion-resisting mechanical seal chemical pump according to claim 4, it is characterized in that: described pump shaft (1) is provided with the pump shaft shaft shoulder (11), described rotating seat (41) connects with axle sleeve (3) and is positioned between impeller (2) and the pump shaft shaft shoulder (11).
6. corrosion-resisting mechanical seal chemical pump according to claim 1, is characterized in that: described elastic member (6) is spring.
7. corrosion-resisting mechanical seal chemical pump according to claim 6, is characterized in that: be provided with seal ring of moving ring (92) between described rotating ring (51) and rotating seat (52).
8. corrosion-resisting mechanical seal chemical pump according to claim 1, it is characterized in that: described casing assembly (8) also comprises pump case (82), pump chamber (83), pump cover (84), overcoat (85) and bearing support (86), described pump case (82) is fixedly connected with pump cover (84) and grips pump chamber (83) and chamber cap (81), described pump chamber (83) is set in impeller (2) and be fixedly connected with overcoat (85) outward, described overcoat (85) is set in elastic member (6) and be fixedly connected with chamber cap (81) outward, described overcoat (85) abuts with elastic member (6), described bearing support (86) is set in pump shaft (1) outward, described bearing support (86) is fixedly connected with pump chamber (83).
9. corrosion-resisting mechanical seal chemical pump according to claim 8, it is characterized in that: between described overcoat (85) and pump chamber (83), be provided with overcoat seal ring (93), between described pump chamber (83) and chamber cap (81), be provided with chamber cap seal ring (94).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520790027.5U CN205025814U (en) | 2015-10-12 | 2015-10-12 | Corrosion -resistant mechanical seal chemical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520790027.5U CN205025814U (en) | 2015-10-12 | 2015-10-12 | Corrosion -resistant mechanical seal chemical pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025814U true CN205025814U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520790027.5U Active CN205025814U (en) | 2015-10-12 | 2015-10-12 | Corrosion -resistant mechanical seal chemical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025814U (en) |
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2015
- 2015-10-12 CN CN201520790027.5U patent/CN205025814U/en active Active
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