CN217814101U - Sectional pump shell sealing device of spiral shell horizontal double-suction water pump - Google Patents
Sectional pump shell sealing device of spiral shell horizontal double-suction water pump Download PDFInfo
- Publication number
- CN217814101U CN217814101U CN202222008959.2U CN202222008959U CN217814101U CN 217814101 U CN217814101 U CN 217814101U CN 202222008959 U CN202222008959 U CN 202222008959U CN 217814101 U CN217814101 U CN 217814101U
- Authority
- CN
- China
- Prior art keywords
- pump
- suction
- spiral shell
- water pump
- annular channel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a water suction pump seals technical field, specifically discloses a horizontal double suction water pump segmentation pump case sealing device of spiral shell, including seting up at the annular channel of the suction lid of water pump and the axial expansion clearance department of spiral shell body and establishing elastic seal in the annular channel, elastic seal seals and keeps apart the cooperation clearance between suction lid and the spiral shell body, sets up annular channel and elastic seal through suction lid and the spiral shell body axial expansion clearance department at the water pump, makes the cooperation clearance between elastic seal seals and keeps apart suction lid and the spiral shell body, when suction lid and the operation of spiral shell body in heated axial expansion or cooling axial shrinkage, elastic seal's elasticity still can effectual sealed isolation suction lid and the spiral shell body between the cooperation clearance, and then makes the leakage between suction lid and the spiral shell body and erode the problem and obtain solving simple and practical, the input cost is cheap, and the water pump efficiency improves to be showing, and the power consumption rate reduction is great, ensures the long-term safe economic operation of water pump.
Description
Technical Field
The application relates to the technical field of water suction pump sealing, and particularly discloses a sectional pump shell sealing device of a spiral shell horizontal double-suction water pump.
Background
The single-stage horizontal volute water pump, for example, QG400/300C water pump, includes pump body, pump shaft, sealing box body, suction cover and volute body. The working principle is that when water is pumped, water with pressure enters the front pump, when the water passes through the impeller rotating together with the pump shaft, the kinetic energy and the potential energy of the water are both increased, and when pumped liquid flows out of the impeller, enters the volute and the overflowing area of the discharge port is gradually increased, a part of the kinetic energy is converted into the potential energy (the pressure is increased).
However, in the using process, because the suction cover and the worm casing are in a stop positioning sealing mode, the stop sealing position is in clearance fit, high-pressure water in the worm casing can leak into the suction cover through the stop sealing position in operation, and the leakage amount of the stop sealing position is gradually increased due to long-term leakage and scouring of the high-pressure water, so that the efficiency of the water pump is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that traditional single-stage horizontal spiral case water pump erodees because of the long-term leakage of water under high pressure, and the leak hunting volume of tang seal increases gradually, makes water pump efficiency reduce.
In order to achieve the above object, the basic scheme of the utility model provides a horizontal double suction water pump segmentation pump case sealing device of spiral shell, include set up at the annular channel of the suction cover of water pump and the axial expansion clearance department of spiral shell body and establish elastic sealing ring in the annular channel, elastic sealing ring seals up and keeps apart the fit clearance between suction cover and the spiral shell body.
Furthermore, the annular channel is arranged on the side wall of the suction covers at the two sides in the water pump shell, and the elastic sealing ring is nested in the annular channel.
Furthermore, the width of the annular channel is 4-6 mm, and the depth is 2-4 mm.
Furthermore, the elastic sealing ring is O-shaped, and the diameter of the elastic sealing ring is the same as the width of the annular groove.
Further, the annular channel width is 5mm, and the depth is 3mm.
The principle and effect of this basic scheme lie in:
compared with the prior art, the utility model discloses an offer annular channel with spiral case body axial expansion clearance department at the suction lid of water pump, when the water pump installation, imbed elastic seal circle in the annular channel, make the sealed clearance that keeps apart of elastic seal circle between suction lid and the spiral case body, when suction lid and the spiral case body operation heated axial expansion or when cooling axial shrinkage, elastic seal circle's elasticity still can effectual sealed keep apart suction lid and spiral case body between the clearance of fit, and then make the leakage between suction lid and the spiral case body and erode the problem and obtain solving simple and practical, the input cost is cheap, the improvement of water pump efficiency is showing, the power consumption rate reduction of water pump is great, ensure the long-term safe economic operation of water pump.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a sectional view of a sectional pump casing sealing device of a spiral casing horizontal type double-suction water pump according to an embodiment of the present application.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Reference numerals in the drawings of the specification include: the pump body 1, a drive end pump cover 2, a pump shaft 3, a free end pump cover 4, a bearing 5, a stud 6, a sealing ring 7, a lower end suction cover 8, an upper end suction cover 9, a sealing box body 10 and an O-shaped ring 11.
A screw shell horizontal double-suction water pump sectional pump shell sealing device takes a QG400/300C water pump as an example, and the embodiment is shown in figure 1: the structure of the QG400/300C water pump part is as follows: including the pump body 1, drive end pump cover 2 and the free end pump cover 4 of being connected with the pump body 1, the sealed letter 10 is all connected in the drive end pump cover 2 and the free end pump cover 4 outside, and drive end pump cover 2 and free end pump cover 4 all are connected with sealed letter 10 through double-screw bolt 6, nut and packing ring etc to all be provided with "O" shape circle 11 in the junction of drive end pump cover 2, free end pump cover 4 and sealed letter 10. The pump is characterized by further comprising a pump shaft 3, the pump shaft 3 is connected with a sealing box body 10 through a bearing 5, an impeller is connected to the upper key of the pump shaft 3, and suction covers are arranged at the upper end and the lower end of the pump body 1 and can be divided into an upper suction cover 9 and a lower suction cover 8.
The annular channel is arranged at the axial expansion gap between the suction cover and the volute body, specifically, the annular channel is arranged on the side wall of the upper end suction cover 9 and the lower end suction cover 8 which are positioned in the water pump shell, the width of the annular channel is 4-6 mm, the depth of the annular channel is 2-4 mm, preferably, the width of the annular channel is 5mm, the depth of the annular channel is 3mm, a sealing ring 7 made of fluororubber is nested in the annular channel, the sealing ring 7 is O-shaped, and the diameter of the sealing ring 7 is the same as the width of the annular channel.
The utility model is simple and practical, the investment cost is low, and only the suction covers at two sides of the QG400/300C type single-stage horizontal volute water pump need to be detached from the volute body; then processing an annular channel with the width of 5mm and the depth of 3mm at the axial expansion gap positioning and sealing position of the suction covers at the two sides and the rabbet of the volute body; finally, embedding a fluororubber sealing ring 7 with phi of 5mm into the annular groove, and then reinstalling the suction covers on the two sides for use.
In the use process, when the suction cover and the volute body are heated and axially expanded or cooled and axially contracted in the operation process, the elasticity of the elastic sealing ring 7 can still effectively seal and isolate the fit clearance between the suction cover and the volute body, so that the problems of leakage and scouring between the suction cover and the volute body are solved, the efficiency of the water pump is improved remarkably, the power consumption rate of the water pump is reduced greatly, and the long-term safe and economic operation of the water pump is ensured.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the technical spirit of the present invention made to the above embodiments are also within the scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a horizontal double suction pump segmentation pump case sealing device of spiral shell which characterized in that: the sealing device comprises an annular channel arranged at an axial expansion gap between a suction cover of the water pump and a volute body and an elastic sealing ring arranged in the annular channel, wherein the elastic sealing ring is used for sealing and isolating a matching gap between the suction cover and the volute body.
2. The sectional pump casing sealing device of the spiral casing horizontal double-suction water pump as claimed in claim 1, wherein the annular channel is formed in the side wall of the suction cover at the two sides in the water pump casing, and the elastic sealing ring is nested in the annular channel.
3. The sectional pump shell sealing device of the spiral shell horizontal double-suction pump as claimed in claim 1, wherein the width of the annular channel is 4-6 mm, and the depth is 2-4 mm.
4. The sectional pump casing sealing device of the screw casing horizontal double-suction water pump as claimed in claim 3, wherein the elastic sealing ring is O-shaped and has a diameter equal to the width of the annular groove.
5. The sectional pump shell sealing device of the spiral shell horizontal double suction pump as claimed in claim 3, wherein the width of the annular channel is 5mm and the depth is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222008959.2U CN217814101U (en) | 2022-08-01 | 2022-08-01 | Sectional pump shell sealing device of spiral shell horizontal double-suction water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222008959.2U CN217814101U (en) | 2022-08-01 | 2022-08-01 | Sectional pump shell sealing device of spiral shell horizontal double-suction water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217814101U true CN217814101U (en) | 2022-11-15 |
Family
ID=83970853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222008959.2U Active CN217814101U (en) | 2022-08-01 | 2022-08-01 | Sectional pump shell sealing device of spiral shell horizontal double-suction water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217814101U (en) |
-
2022
- 2022-08-01 CN CN202222008959.2U patent/CN217814101U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217814101U (en) | Sectional pump shell sealing device of spiral shell horizontal double-suction water pump | |
| CN206785663U (en) | A kind of low liquid level pump drainage pump of light-duty big flow | |
| CN207864240U (en) | A kind of chemical flow-process pump | |
| CN204113649U (en) | A kind of axial elasticity sealing configuration scroll compressor | |
| CN203743054U (en) | Horizontal single-stage centrifugal pump | |
| CN205243923U (en) | Open double suction centrifugal pump in level | |
| CN211819925U (en) | High-efficiency energy-saving vertical self-priming pump | |
| CN211778175U (en) | Self-priming pump impeller import sealing device | |
| CN218347631U (en) | High-pressure-resistant axial split sealing device | |
| CN209586710U (en) | A kind of immersible pump | |
| CN207145263U (en) | A kind of protected type deep well pump pump housing | |
| CN207315670U (en) | A kind of vertical single stage clear water peripheral pump | |
| CN207363938U (en) | A kind of unpowered sealing device of pump for liquid salts | |
| CN215595979U (en) | Sealing device for self-priming pump | |
| CN205423177U (en) | There is not sealed vertical self priming pump | |
| CN211230956U (en) | Sawtooth spiral sealing device of centrifugal pump | |
| CN218542630U (en) | Blowdown immersible pump that assembly efficiency is high | |
| CN208763925U (en) | The submersible sewage electric pump that a kind of pair of motor cavity is cooled down and cleaned | |
| CN208858592U (en) | Glue pump | |
| CN204371696U (en) | Namely one drives energy-saving vertical self-priming pump | |
| CN211950898U (en) | High-sealing high-pressure submersible sewage electric pump | |
| CN215890477U (en) | Energy-saving vertical multistage pump | |
| CN212899721U (en) | Mechanical sealing device with threaded pump effect | |
| CN218347568U (en) | Prevent seal structure of screw pump head leakage | |
| CN204003506U (en) | A kind of pump with water-cooling jacket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |