CN210152966U - Double-end-face mechanical sealing structure of impurity pump - Google Patents
Double-end-face mechanical sealing structure of impurity pump Download PDFInfo
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- CN210152966U CN210152966U CN201920679589.0U CN201920679589U CN210152966U CN 210152966 U CN210152966 U CN 210152966U CN 201920679589 U CN201920679589 U CN 201920679589U CN 210152966 U CN210152966 U CN 210152966U
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Abstract
A double-end-face mechanical sealing structure of an impurity pump comprises a mechanical seal box fixed on the right side of a conveying volute of the impurity pump, wherein a containing cavity is arranged in a mechanical seal box sleeve, the left side of the upper part and the right side of the lower part of the mechanical seal box are respectively and vertically provided with a cooling water inlet and a cooling water outlet which are communicated with the containing cavity, a moving ring assembly which is fixed on a pump shaft of the impurity pump through bolts symmetrically arranged on the upper side and the lower side of the pump shaft of the impurity pump is arranged in the containing cavity, the left side and the right side of the moving ring assembly are respectively provided with a static ring sleeved outside the pump shaft of the impurity pump, the left side/the right side of the static; the movable ring assembly comprises two movable rings arranged on two sides of the movable ring assembly, a push ring abutted against the movable ring is arranged on the right side of the movable ring on the left side, and a compensation return spring abutted against the push ring is arranged on the right side of the push ring; an anti-abrasion gasket is arranged between the movable ring and the static ring; the utility model has the characteristics of compact structure, sealed effectual, reasonable in design etc.
Description
Technical Field
The utility model relates to an impurity pump equipment technical field, concretely relates to double mechanical seal structure of impurity pump.
Background
The mechanical seal is a shaft seal device of rotary machinery, such as centrifugal pump, centrifuge, reaction kettle and compressor, because the drive shaft penetrates inside and outside the equipment, thus, there is a circumferential gap between the shaft and the equipment, the medium in the equipment leaks outside through the gap, if the pressure in the equipment is lower than the atmospheric pressure, the air leaks to the inside of the equipment, must have a shaft seal device which prevents the leakage;
the mechanical sealing structure of the existing impurity pump is often provided with compensation spring mechanisms on both sides, and in order to prevent materials from entering a pump shaft seal cavity, one side of a mechanical sealing assembly, which is close to a conveying volute, needs a higher sealing grade, and the other side of the mechanical sealing assembly can be free from the compensation spring mechanisms, so that the length of a pump body is shortened; common rotating ring and quiet ring terminal surface laminating rotational friction, and then cause wearing and tearing easily, rotating ring and quiet ring are changed often, and sealed effect reduces, consequently need optimize a double mechanical seal structure of trash pump.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art and providing a double mechanical seal structure of trash pump, have compact structure, sealed effectual, characteristics such as reasonable in design.
The technical scheme of the utility model according to down:
a double-end-face mechanical sealing structure of an impurity pump comprises a mechanical seal box fixed on the right side of a conveying volute of the impurity pump, wherein the mechanical seal box is sleeved on a pump shaft of the impurity pump, the inner side of the mechanical seal box and the outer side of the pump shaft of the impurity pump form an accommodating cavity, the left side of the upper part and the right side of the lower part of the mechanical seal box are respectively and vertically provided with a cooling water inlet and a cooling water outlet which are communicated with the accommodating cavity, a moving ring assembly which is fixed on the pump shaft of the impurity pump through bolts symmetrically arranged on the upper side and the lower side of the pump shaft of the impurity pump is arranged in the accommodating cavity, the left side and the right side of the moving ring assembly are respectively provided with a static ring sleeved outside the pump shaft of the;
the movable ring assembly comprises two movable rings arranged on two sides of the movable ring assembly, a push ring abutted against the movable ring is arranged on the right side of the movable ring on the left side, and a compensation return spring abutted against the push ring is arranged on the right side of the push ring;
a first O-shaped sealing ring is arranged at the joint of the movable ring and the push ring;
a second O-shaped sealing ring is arranged between the static ring and the side wall of the mechanical seal box;
and an anti-abrasion gasket is arranged between the movable ring and the static ring.
Furthermore, the outside in holding chamber is provided with the cooling trough, and the cooling trough can cushion and store the cooling water when the cooling water gets into, and the cooling effect is good, and is less to the part impact in the holding chamber.
Further, the machine sealing box comprises a left machine sealing box and a right machine sealing box, and the left machine sealing box is fixedly connected with the impurity pump conveying volute through a first bolt which penetrates through the lower side wall of the left machine sealing box from right to left and is fixed on the right side of the impurity pump conveying volute; the right machine sealing box is fixedly connected with the left machine sealing box through a second bolt which penetrates through the side wall of the upper side of the right machine sealing box from right to left and is fixed on the right side of the left machine sealing box, and the left machine sealing box and the right machine sealing box are detachably connected on a conveying volute so as to be convenient to disassemble, assemble and repair.
Furthermore, a third O-shaped sealing ring is arranged at the joint of the left machine sealing box and the right machine sealing box, so that the sealing performance of the machine sealing box is improved.
Compared with the prior art, the beneficial effects of the utility model are that: the movable ring assembly comprises two movable rings arranged on two sides of the movable ring assembly, a push ring which is abutted against the movable ring is arranged on the right side of the movable ring on the left side, and a compensation return spring which is abutted against the push ring is arranged on the right side of the push ring; an anti-abrasion gasket is added between the movable ring and the static ring, so that the movable ring is prevented from being attached to and rubbed with the end face of the static ring when rotating; sealing rings are arranged between the movable ring and the push ring, between the static ring and the side wall of the mechanical seal box and between the movable ring and the static ring; the utility model has the characteristics of compact structure, sealed effectual, reasonable in design etc.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is an enlarged view of fig. 1 at a.
Reference numerals: 1. impurity pump conveying volute, 2, machine seal case, 21, left machine seal case, 22, right machine seal case, 3, right machine seal case, 4, holding chamber, 5, cooling water inlet, 6, cooling water outlet, 7, bolt, 8, bolt, 81, rotating ring, 82, push ring, 83, quiet ring, 9, quiet ring, 10, circular slot, 11, second O type sealing washer, 12, first O type sealing washer, 13, abrasionproof decreases gasket, 14, cooling water tank, 15, second bolt, 16, first bolt, 17, third O type sealing washer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
As shown in fig. 1-2, a double-end mechanical seal structure of an impurity pump comprises a mechanical seal box 2 fixed on the right side of a conveying volute 1 of the impurity pump, the mechanical seal box 2 is sleeved on a pump shaft 3 of the impurity pump, the inner side of the mechanical seal box 2 and the outer side of the pump shaft 3 of the impurity pump form a containing cavity 4, the left side of the upper part and the right side of the lower part of the mechanical seal box 2 are respectively and vertically provided with a cooling water inlet 5 and a cooling water outlet 6 communicated with the containing cavity 4, a moving ring assembly 8 fixed on the pump shaft 3 of the impurity pump through bolts 7 symmetrically arranged on the upper and lower sides of the pump shaft 3 of the impurity pump is arranged in the containing cavity 4, the moving ring assembly 8 is fixed with the pump shaft 3 through bolts and further rotates along with the pump shaft 3, the left and right sides of the moving ring assembly 8 are respectively provided with a stationary ring 9 sleeved on the outer side of the pump shaft 3 of the impurity, the rotation stop pin 18 limits the rotation of the static ring 9;
the moving ring assembly 8 comprises two moving rings 81 arranged at two sides of the moving ring assembly 8, a push ring 82 abutted against the moving ring 81 is arranged at the right side of the moving ring 81 at the left side, and a compensation return spring 83 abutted against the push ring 82 is arranged at the right side of the push ring 82;
a first O-shaped sealing ring 12 is arranged at the joint of the movable ring 81 and the push ring 82;
a second O-shaped sealing ring 11 is arranged between the static ring 9 and the side wall of the mechanical seal box 2;
an anti-abrasion gasket 13 is arranged between the moving ring 81 and the static ring 9, the surface of the anti-abrasion gasket 13 is very smooth and is made of wear-resistant materials such as bronze and antifriction alloy, and friction between the moving ring 81 and the static ring 9 is further reduced.
A cooling water tank 14 is arranged outside the accommodating cavity 4.
The machine sealing box 2 comprises a left machine sealing box 21 and a right machine sealing box 22, and the left machine sealing box 21 is fixedly connected with the impurity pump conveying volute 1 through a first bolt 16 which penetrates through the lower side wall of the left machine sealing box 21 from right to left and is fixed on the right side of the impurity pump conveying volute 1; right side machine joint sealing 22 is through passing right side machine joint sealing 22's upside lateral wall and fixing second bolt 15 and left machine joint sealing 21 fixed connection on left machine joint sealing 21 right side from the right side left, and left machine joint sealing 21 and right machine joint sealing 22 are for dismantling to connect on impurity pump conveying spiral case 1, and then make things convenient for the dismouting to overhaul.
And a third O-shaped sealing ring 17 is arranged at the joint of the left mechanical seal box 21 and the right mechanical seal box 22.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. A double-end-face mechanical sealing structure of an impurity pump is characterized by comprising a mechanical seal box (2) fixed on the right side of a conveying volute (1) of the impurity pump, wherein the mechanical seal box (2) is sleeved on a pump shaft (3) of the impurity pump, the inner side of the mechanical seal box (2) and the outer side of the pump shaft (3) of the impurity pump form a containing cavity (4), the left side of the upper portion and the right side of the lower portion of the mechanical seal box (2) are respectively and vertically provided with a cooling water inlet (5) and a cooling water outlet (6) which are communicated with the containing cavity (4), a moving ring assembly (8) which is fixed on the pump shaft (3) of the impurity pump through bolts (7) symmetrically arranged on the upper side and the lower side of the pump shaft (3) of the impurity pump is arranged in the containing cavity (4), the left side and the right side of the moving ring assembly (8) are respectively provided with a ring (9) sleeved on the outer, a rotation stopping pin (18) is inserted in the circular groove (10);
the movable ring assembly (8) comprises two movable rings (81) arranged on two sides of the movable ring assembly (8), a push ring (82) abutted against the movable ring (81) is arranged on the right side of the left movable ring (81), and a compensation return spring (83) abutted against the push ring (82) is arranged on the right side of the push ring (82);
a first O-shaped sealing ring (12) is arranged at the joint of the movable ring (81) and the push ring (82);
a second O-shaped sealing ring (11) is arranged between the static ring (9) and the side wall of the mechanical seal box (2);
an anti-abrasion gasket (13) is arranged between the movable ring (81) and the static ring (9).
2. A double mechanical seal of a trash pump of claim 1 wherein: and a cooling water tank (14) is arranged on the outer side of the accommodating cavity (4).
3. A double mechanical seal of a trash pump of claim 1 wherein: the machine sealing box (2) comprises a left machine sealing box (21) and a right machine sealing box (22), and the left machine sealing box (21) is fixedly connected with the impurity pump conveying volute (1) through a first bolt (16) which penetrates through the lower side wall of the left machine sealing box (21) from right to left and is fixed on the right side of the impurity pump conveying volute (1); and the right machine sealing box (22) passes through the side wall of the upper side of the right machine sealing box (22) from right to left and is fixedly connected with the left machine sealing box (21) through a second bolt (15) fixed on the right side of the left machine sealing box (21).
4. A double mechanical seal of a trash pump of claim 3 wherein: and a third O-shaped sealing ring (17) is arranged at the joint of the left machine sealing box (21) and the right machine sealing box (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920679589.0U CN210152966U (en) | 2019-05-13 | 2019-05-13 | Double-end-face mechanical sealing structure of impurity pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920679589.0U CN210152966U (en) | 2019-05-13 | 2019-05-13 | Double-end-face mechanical sealing structure of impurity pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210152966U true CN210152966U (en) | 2020-03-17 |
Family
ID=69757839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920679589.0U Active CN210152966U (en) | 2019-05-13 | 2019-05-13 | Double-end-face mechanical sealing structure of impurity pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210152966U (en) |
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2019
- 2019-05-13 CN CN201920679589.0U patent/CN210152966U/en active Active
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