CN202900789U - Novel floating opening ring structure - Google Patents

Novel floating opening ring structure Download PDF

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Publication number
CN202900789U
CN202900789U CN 201220652278 CN201220652278U CN202900789U CN 202900789 U CN202900789 U CN 202900789U CN 201220652278 CN201220652278 CN 201220652278 CN 201220652278 U CN201220652278 U CN 201220652278U CN 202900789 U CN202900789 U CN 202900789U
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CN
China
Prior art keywords
choma
opening ring
impeller
seat
pump
Prior art date
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Active
Application number
CN 201220652278
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Chinese (zh)
Inventor
郑高洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DELI PETROCHEMIC EQUIPMENT Co Ltd XINCHANG COUNTY
Original Assignee
DELI PETROCHEMIC EQUIPMENT Co Ltd XINCHANG COUNTY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by DELI PETROCHEMIC EQUIPMENT Co Ltd XINCHANG COUNTY filed Critical DELI PETROCHEMIC EQUIPMENT Co Ltd XINCHANG COUNTY
Priority to CN 201220652278 priority Critical patent/CN202900789U/en
Application granted granted Critical
Publication of CN202900789U publication Critical patent/CN202900789U/en
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Abstract

The utility model discloses a novel floating opening ring structure, belonging to the sealing technique of fluid machinery, and solving the problems that the gap between an impeller of a pump and an opening ring of a pump body is oversize, the leakage rate is large and the efficiency of the pump is low. The novel floating opening ring structure comprises the pump body, the impeller and the opening ring, wherein the pump body is provided with a suction inlet and an impeller chamber, wherein the opening ring is positioned between the suction inlet and the impeller chamber; the impeller is arranged in the impeller chamber; the peripheral surface of one end, facing to the suction inlet, of the impeller is positioned in the opening ring; the pump body is fixedly provided with an opening ring seat; the opening ring is positioned between the opening ring seat and the pump body; a moving space is reserved at a radial direction and axial direction of the opening ring, so that the opening ring can float at the radial direction and the axial direction; and the opening ring is limited by the opening ring seat to rotate in a peripheral direction. Compared with the traditional opening ring structure, the matching gap between the impeller and the opening ring can be obviously reduced, the leakage rate is lowered, and the efficiency of the pump is improved, so that the product can save more energy; and on the other hand, the gap between the impeller and the opening ring seat is relatively increased, the processing difficulty is lowered, and the processing cost is saved; and meanwhile, the defect of occlusion can be avoided.

Description

Novel unsteady choma structure
Technical field
The utility model relates to a kind of novel unsteady choma structure, belongs to the technical field of sealing technology of fluid machinery.
Background technique
Traditional choma structure, clearance seal is adopted in the sealing of impeller and pump housing choma, its deficiency: the excesssive gap of impeller and pump housing choma, the leakage rate in the pump is large, thereby the efficient of pump is low, causes the waste of the energy; The gap of impeller and pump housing choma is too small, increased difficulty of processing, thereby increased processing cost, and be difficult to guarantee the coaxality of impeller and pump housing choma, very easily produce scraping with the pump housing choma during vane rotary, for the sealed material (such as aluminium, titanium etc.) of some anti-" interlock " poor performance, also can produce " interlock " defective.
The model utility content
The technical assignment of the technical problems to be solved in the utility model and proposition is the defectives such as excesssive gap, the leakage rate efficient large, pump that overcomes the impeller of existing pump and pump housing choma is low, and a kind of novel unsteady choma structure is provided.
For achieving the above object, novel unsteady choma structure of the present utility model, comprise the pump housing, impeller, choma, the described pump housing is with suction port, blade wheel chamber, described choma is between described suction port and blade wheel chamber, described impeller is positioned at described blade wheel chamber, described impeller is positioned at described choma towards the outer circumferential face of suction port one end, it is characterized in that: fixing assembling a bite ring seat on the described pump housing, described choma between described choma seat and the pump housing and described choma radially, axially leave activity space so that choma can float radial and axial, described choma seat limits described choma and rotates at circumferencial direction.
As the optimization technique means, described choma seat is assemblied on the described pump housing by Cock screw.Further, described choma is cirque structure, and the outer rim of described choma is provided with groove; Described choma seat is cirque structure, establishes axial boss on the described choma seat; Have an axial plane on the described pump housing, described choma places on the described axial plane, and the axial boss of described choma seat is positioned at the groove of described choma and is supported on the described axial plane.
As the optimization technique means, described choma, choma seat are cirque structure, set up groove, axial boss separately on described choma, the choma seat; Described boss is mobilizable to be positioned at described groove.
The beneficial effects of the utility model are: compare novel structure with traditional choma structure; Matching gap between impeller and the choma can obviously reduce, and has reduced leakage rate, has improved the efficient of pump, makes product more energy-conservation; On the other hand, impeller is relative with the gap of choma seat to be strengthened, and has reduced difficulty of processing, saves processing cost, can avoid producing " interlock " defective simultaneously.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 be among Fig. 1 choma to view;
Fig. 3 be among Fig. 1 the choma seat to view;
Number in the figure explanation: the 1-pump housing, 2-impeller, 3-choma, 4-choma seat, 5-Cock screw, 6-groove, 7-boss, 8-suction port, 9-blade wheel chamber, 10-axial plane.
Embodiment
Below in conjunction with Figure of description the utility model is described further.
Novel unsteady choma structure of the present utility model, as shown in Figure 1, it comprises the pump housing 1, impeller 2, choma 3, the pump housing 1 is with suction port 8, blade wheel chamber 9, choma 3 is between suction port 8 and blade wheel chamber 9, impeller 2 is positioned at blade wheel chamber, impeller is positioned at choma 3 towards the outer circumferential face of suction port 8 one ends, fixing assembling a bite ring seat 4 on the pump housing 1, choma 3 between choma seat 4 and the pump housing 1 and choma 3 radially, axially leave activity space so that choma 3 can float radial and axial, choma seat 4 restriction chomas 3 rotate at circumferencial direction.
Concrete: choma seat 4 is assemblied on the pump housing 1 by Cock screw 5, and further, choma 3 is cirque structure, and the outer rim of choma 3 is provided with groove 6; Choma seat 4 is cirque structure, establishes axial boss 7 on the choma seat 4; Has an axial plane 10 on the pump housing 1, choma 3 places on the axial plane 10, the axial boss 7 of choma seat 4 is positioned at the groove 6 of choma 3 and is supported on the axial plane 10, be supported on realization location on the axial plane by axial boss 7, be convenient to Cock screw 5 assemblings, the groove 6 restriction chomas 3 that axial boss 7 is positioned at choma 3 rotate at circumferencial direction.
In addition, diagram choma 3 is cirque structure, adopts nonmetallic material to make, and the outer rim of choma 3 is provided with groove 6(referring to Fig. 2); Choma seat 4 is cirque structure, establishes axial boss 7(on the choma seat 4 referring to Fig. 3); The groove 6 restriction chomas 3 that the boss 7 of choma seat 4 is positioned at choma 3 rotate (scheme as an alternative, during implementation, described boss and groove transposition can be realized its effect equally, do not repeat them here) at circumferencial direction.

Claims (4)

1. novel unsteady choma structure, comprise the pump housing (1), impeller (2), choma (3), the described pump housing (1) is with suction port (8), blade wheel chamber (9), described choma (3) is between described suction port and blade wheel chamber, described impeller (2) is positioned at described blade wheel chamber, described impeller is positioned at described choma (3) towards the outer circumferential face of suction port one end, it is characterized in that: the upper fixing assembling a bite ring seat (4) of the described pump housing (1), described choma (3) be positioned between described choma seat (4) and the pump housing (1) and described choma (3) radially, axially leave activity space so that choma (3) can float radial and axial, described choma seat (4) limits described choma (3) and rotates at circumferencial direction.
2. novel unsteady choma structure according to claim 1, it is characterized in that: described choma seat (4) is assemblied on the described pump housing (1) by Cock screw (5).
3. novel unsteady choma structure according to claim 1, it is characterized in that: described choma (3) is cirque structure, adopts nonmetallic material to make, the outer rim of described choma (3) is provided with groove (6); Described choma seat (4) is cirque structure, establishes axial boss (7) on the described choma seat (4); Has an axial plane (10) on the described pump housing (1), described choma (3) places on the described axial plane (10), and the axial boss (7) of described choma seat (4) is positioned at the groove (6) of described choma (3) and is supported on the described axial plane.
4. novel unsteady choma structure according to claim 1, it is characterized in that: described choma (3), choma seat (4) they are cirque structure, set up groove (6), axial boss (7) on described choma (3), the choma seat (4) separately; The mobilizable described groove (6) that is positioned at of described boss (7).
CN 201220652278 2012-11-29 2012-11-29 Novel floating opening ring structure Active CN202900789U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220652278 CN202900789U (en) 2012-11-29 2012-11-29 Novel floating opening ring structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220652278 CN202900789U (en) 2012-11-29 2012-11-29 Novel floating opening ring structure

Publications (1)

Publication Number Publication Date
CN202900789U true CN202900789U (en) 2013-04-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220652278 Active CN202900789U (en) 2012-11-29 2012-11-29 Novel floating opening ring structure

Country Status (1)

Country Link
CN (1) CN202900789U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112983881A (en) * 2021-05-21 2021-06-18 星河动力(北京)空间科技有限公司 Sealing opening ring, liquid rocket engine centrifugal pump and liquid rocket engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112983881A (en) * 2021-05-21 2021-06-18 星河动力(北京)空间科技有限公司 Sealing opening ring, liquid rocket engine centrifugal pump and liquid rocket engine
CN112983881B (en) * 2021-05-21 2021-09-17 星河动力(北京)空间科技有限公司 Sealing opening ring, liquid rocket engine centrifugal pump and liquid rocket engine

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