CN202937493U - Core-pulling type mixed-flow pump with static sealing structure - Google Patents
Core-pulling type mixed-flow pump with static sealing structure Download PDFInfo
- Publication number
- CN202937493U CN202937493U CN 201220679695 CN201220679695U CN202937493U CN 202937493 U CN202937493 U CN 202937493U CN 201220679695 CN201220679695 CN 201220679695 CN 201220679695 U CN201220679695 U CN 201220679695U CN 202937493 U CN202937493 U CN 202937493U
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- Prior art keywords
- pump
- stuffing box
- core
- type mixed
- connection pipe
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical filed of water pumps, and relates to a core-pulling type mixed-flow pump with a static sealing structure. The core-pulling type mixed-flow pump with the static sealing structure comprises a pump body, wherein the top of the pump body is provided with a pump cover in a covered mode, a lower connection pipe is arranged below the pump body and a rotor part is arranged in the pump body. The lower end of the rotor part is connected with an impeller chamber, the upper end of the rotor part is connected with a motor shaft, and the combination place of the inner edge of the pump body and the outer edge of the impeller chamber is provided with a sealing ring. A stuffing box part and an inner connection pipe are arranged between the rotor part and the pump cover. A nut is arranged between the stuffing box part and the inner connection pipe. A nut is arranged between the stuffing box part and the pump cover. On the inner connection pipe, a first O-shaped sealing ring is arranged on the contact face place of the inner connection pipe and the stuffing box part. On the inner connection pipe, a second O-shaped sealing ring is arranged on the contact face place of the inner connection pipe and the pump cover. A 10 mm gap is arranged between the pump cover and the stuffing box part. On the impeller chamber, a third O-shaped sealing ring is arranged on the contact face place of the impeller chamber and the lower connection pipe. The core-pulling type mixed-flow pump with the static sealing structure is good in sealing property, convenient to install, and low in cost.
Description
Technical field
The utility model relates to vertical water pump, particularly a kind of large-scale vertical water pump of loosing core.
Background technique
Mixed flow pump is that a kind of liquid is along the vane pump with axis true dip direction outflow impeller.Core-loosing type mixed flow pump is a kind of water pump be in daily use, and while in its pump housing, being full of high pressure water, inner connecting tube and stuffing box parts surface of contact, pump cover and inner connecting tube surface of contact, lower linking tube and blade wheel chamber's surface of contact all need press seal.Existing core-loosing type mixed flow pump adopts the paper washer sealing, is difficult to reach ideal effect.Lower linking tube and blade wheel chamber's surface of contact are non-fixed forms, can not assign screw, give to add to seal and have brought difficulty.
A kind of core-loosing type mixed flow pump of good seal is badly in need of in the pump technology field.
Summary of the invention
The utility model, for the existing bad defect of core-loosing type mixed flow pump sealing configuration, provides a kind of core-loosing type mixed flow pump with hydrostatic seal structure.The technological scheme that the utility model adopts is as follows:
A kind of core-loosing type mixed flow pump with hydrostatic seal structure comprises:
The pump housing, pump cover is stamped at top, and below arranges lower linking tube, and rotor part is inside arranged; This rotor part lower end connects blade wheel chamber, and upper end is connected with motor shaft, and seal ring is equipped with in this pump housing inner edge and this blade wheel chamber's outer rim junction;
Between this rotor part and this pump cover, stuffing box parts and inner connecting tube are set;
Between these stuffing box parts and this inner connecting tube, screw-nut is set;
Between these stuffing box parts and this pump cover, screw-nut is set;
It is characterized in that,
On this inner connecting tube, with the surface of contact position of stuffing box parts, the one O RunddichtringO is set.
A kind of core-loosing type mixed flow pump with hydrostatic seal structure as above, wherein, on this inner connecting tube, arrange the 2nd O RunddichtringO with the surface of contact position of this pump cover.
A kind of core-loosing type mixed flow pump with hydrostatic seal structure as above wherein, arranges 10 millimeters spaces between this pump cover and this stuffing box parts; In this blade wheel chamber, with the surface of contact position of this lower linking tube, the 3rd O RunddichtringO is set.
Core-loosing type mixed flow pump of the present utility model adopts the hydrostatic seal structure, good sealing effect, and easy for installation, cost is low.
The accompanying drawing explanation
Describe the utility model in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
A kind of core-loosing type mixed flow pump with hydrostatic seal structure as shown in Figure 1 comprises:
The pump housing 1, pump cover 4 is stamped at top, and below arranges lower linking tube 8, and rotor part 2 is inside arranged;
Stuffing box parts 6 and inner connecting tube 7 are set between rotor part 2 and pump cover 4, space between stuffing box parts 6 sealing pump covers 4 and rotor part 2, prevent that the water in pump from flowing to outside, also prevent that the air of outside from entering in pump, remain the vacuum state in water pump;
Between stuffing box parts 6 and inner connecting tube 7, screw-nut 11 is set, both are connected;
Between stuffing box parts 6 and pump cover 4, screw-nut 13 is set, both are connected;
10 millimeters spaces are set between pump cover 4 and stuffing box parts 6;
On inner connecting tube 7, dig seal groove with the surface of contact position of stuffing box parts 6, add an O RunddichtringO 9;
On inner connecting tube 7, dig seal groove with the surface of contact position of pump cover 4, add the 2nd O RunddichtringO 10;
Tighten sealing by nut 11, an O RunddichtringO 9 and the 2nd O RunddichtringO 10 reach respectively axially and the radial seal effect;
In blade wheel chamber 3, dig seal groove with the surface of contact position of lower linking tube 8, add the 3rd O RunddichtringO 12, tighten screw-nut 13 press seals, reach sealing effect.
Advantage of the present utility model: O RunddichtringO sealing is than existing paper washer good seal, and easy installation and removal, without in blade wheel chamber 3, with the surface of contact position of lower linking tube 8, any bindiny mechanism being installed.Easy for installation, at first load onto the 2nd O RunddichtringO 10 and the 3rd O RunddichtringO 12, then the pump core is lifted up in the pump housing; The one O RunddichtringO 9 is installed and is tightened screw-nut 11; Finally tighten screw-nut 13, make the 2nd O RunddichtringO 10 and the 3rd O RunddichtringO 12 press seals, complete the installation of whole core-loosing type mixed flow pump.
Above demonstration and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. the core-loosing type mixed flow pump with hydrostatic seal structure comprises:
The pump housing (1), pump cover (4) is stamped at top, and below arranges lower linking tube (8), and rotor part (2) is inside arranged; This rotor part (2) lower end connects blade wheel chamber (3), and upper end is connected with motor shaft, and seal ring (5) is equipped with in this pump housing (1) inner edge and this blade wheel chamber (3) outer rim junction;
Stuffing box parts (6) and inner connecting tube (7) are set between this rotor part (2) and this pump cover (4);
Between these stuffing box parts (6) and this inner connecting tube (7), screw-nut (11) is set;
Between these stuffing box parts (6) and this pump cover (4), screw-nut (13) is set;
It is characterized in that,
Upper at this inner connecting tube (7), with the surface of contact position of stuffing box parts (6), an O RunddichtringO (9) is set.
2. a kind of core-loosing type mixed flow pump with hydrostatic seal structure according to claim 1, is characterized in that, upper at this inner connecting tube (7), with the surface of contact position of this pump cover (4), the 2nd O RunddichtringO (10) is set.
3. a kind of core-loosing type mixed flow pump with hydrostatic seal structure according to claim 1, is characterized in that, between this pump cover (4) and this stuffing box parts (6), 10 millimeters spaces is set; Upper in this blade wheel chamber (3), with the surface of contact position of this lower linking tube (8), the 3rd O RunddichtringO (12) is set.
4. a kind of core-loosing type mixed flow pump with hydrostatic seal structure according to claim 2, is characterized in that, between this pump cover (4) and this stuffing box parts (6), 10 millimeters spaces is set; Upper in this blade wheel chamber (3), with the surface of contact position of this lower linking tube (8), the 3rd O RunddichtringO (12) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220679695 CN202937493U (en) | 2012-12-11 | 2012-12-11 | Core-pulling type mixed-flow pump with static sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220679695 CN202937493U (en) | 2012-12-11 | 2012-12-11 | Core-pulling type mixed-flow pump with static sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937493U true CN202937493U (en) | 2013-05-15 |
Family
ID=48321735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220679695 Expired - Fee Related CN202937493U (en) | 2012-12-11 | 2012-12-11 | Core-pulling type mixed-flow pump with static sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937493U (en) |
-
2012
- 2012-12-11 CN CN 201220679695 patent/CN202937493U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |