CN101775825B - Structure used for let-off pipe of water pump to penetrate through top plate and construction method thereof - Google Patents
Structure used for let-off pipe of water pump to penetrate through top plate and construction method thereof Download PDFInfo
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- CN101775825B CN101775825B CN201010100034.XA CN201010100034A CN101775825B CN 101775825 B CN101775825 B CN 101775825B CN 201010100034 A CN201010100034 A CN 201010100034A CN 101775825 B CN101775825 B CN 101775825B
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Abstract
The invention discloses a structure used for a let-off pipe of a water pump to penetrate through a top plate, which is characterized in that a position on a plate body, which needs to penetrate through the let-off pipe, is provided with a U-shaped groove, the position of a notch of the U-shaped groove is provided with angle iron, and the angle iron is flat and straight angle iron or arc-shaped angle iron. When in use, a U-shaped hole is adopted when the let-off pipe penetrates through the top plate vertically, the condition that the let-off pipe utilizes an elbow to keep away from a beam of the top plate can be avoided, the elbow does not need to be arranged, the head loss is decreased, and water flow is more smooth; the vibration of the water pump, which is caused by the diversion of the water flow because of adding the elbow, is avoided; and meanwhile, compared with a conventional prepared hole, the structure is more convenient in the aspects of both the installation and the replacement of a pipeline.
Description
Technical field:
The present invention relates to the technical field of municipal engineering, is a kind of structure for let-off pipe of water pump to penetrate through top plate and construction method thereof specifically.
Background technology:
In the municipal engineering of current China, especially various pump station engineering, the outlet pipe often having water pump passes through the situation of top board.The situation of routine be pipeline near a pool wall, the opposite side of pipeline opens manhole, for lifting by crane pump equipment etc.General processing mode is that place establishes structural beams at manhole, and because the outlet pipe parallel distance of guide rod and water pump is very little, therefore outlet pipe will utilize two 45 ° of elbows to avoid structural beams, and Pipeline Crossing Program top board place reserves circular hole.(see Fig. 1, Fig. 2)
Because the general flow velocity of pumping line is very large, the elbow therefore increased can increase the head loss of water pump greatly, causes the waste in pump head, increases head loss, is unfavorable for energy-conservation; And after increase elbow, water flow variation can cause the vibration of pipeline, causes water pump to vibrate, causes the damage of water pump in the course of time.
Summary of the invention:
The object of this invention is to provide a kind of structure for let-off pipe of water pump to penetrate through top plate and construction method thereof, namely the size of preformed hole and bore edges cover plate in Normal practice is reduced, the form of structure of structural safety, convenient construction can be ensured again simultaneously, it can to overcome in prior art elbow on outlet pipe increase head loss, be unfavorable for energy-conservation, the water flow variation some shortcomings that cause water pump to vibrate simultaneously.
To achieve these goals, technical scheme of the present invention is: a kind of structure for let-off pipe of water pump to penetrate through top plate, it mainly comprises top board plate body and the angle steel for closed notch, it is characterized in that: the position that plate body passes through for outlet pipe is provided with U-type groove, the notch place of U-type groove is provided with angle steel, and angle steel is straight angle steel or arc-shaped angle steel.
A kind of construction method of the structure for let-off pipe of water pump to penetrate through top plate, it is characterized in that: described construction method comprises the steps: a, arranges U-type groove or groove at a lateral edges of top board, the pre-buried angle steel of notch of U-type groove, thus forming a U-shaped hole, the radius in U-shaped hole is greater than the radius of outlet pipe; B, when installing, if outlet pipe does not manage orchid, direct by outlet pipe through U-shaped hole; If outlet pipe manage orchid and cannot through U-type groove time, then passes after U-type groove until outlet pipe and seal notch with angle steel again, or outlet pipe is through welded flange on outlet pipe again after U-type groove; After c, installation, angle steel need be equal with side with concrete roof.
During use, in the present invention, pumping line vertically passes through the U-shaped hole of top board, outlet pipe can be avoided to utilize elbow to avoid top board beam, need not arrange elbow, reduces head loss, makes current more smooth and easy; Reduce simultaneously and cause current break-in owing to increasing elbow and cause the vibration of water pump; Meanwhile, in installation and later the replacing with of pipeline, structure of the present invention is all convenient than conventional method.
Accompanying drawing illustrates:
Fig. 1 is the section reference diagram that prior art outlet pipe passes through top board
Fig. 2 is the Plane reference figure that prior art outlet pipe passes through top board
Fig. 3 is the sectional view that outlet pipe of the present invention passes through top board
Fig. 4 is the plan view that outlet pipe of the present invention passes through top board
Fig. 5 the present invention adopts the structural representation of straight angle steel
Fig. 6 the present invention adopts the structural representation of arc-shaped angle steel
Fig. 7 is the structural representation of one embodiment of the invention
Detailed description of the invention:
Below in conjunction with accompanying drawing and example, the present invention is further described.
The present invention mainly comprises top board plate body 1 and sealing angle steel 2, and its difference with the prior art is: the position that plate body passes through for outlet pipe is provided with U-type groove 3, and the notch place of U-type groove is provided with angle steel, for installing water pump lifting guide rail.Angle steel is straight angle steel or arc-shaped angle steel, and angle steel is equal with side with concrete roof after installing.The notch radius of U-type groove is greater than the radius of outlet pipe.
A kind of construction method of the structure for let-off pipe of water pump to penetrate through top plate, it is characterized in that: described construction method comprises the steps: a, arranges U-type groove or groove at a lateral edges of top board, the pre-buried angle steel of notch of U-type groove, thus forming a U-shaped hole, the radius in U-shaped hole is greater than the radius of outlet pipe; B, when installing, if outlet pipe does not manage orchid, direct by outlet pipe through U-shaped hole; If outlet pipe manage orchid and cannot through U-type groove time, then passes after U-type groove until outlet pipe and seal notch with angle steel again, or outlet pipe is through welded flange on outlet pipe again after U-type groove; After c, installation, angle steel need be equal with side with concrete roof.In a step, angle steel can adopt straight angle steel or arc-shaped angle steel according to civil engineering form, and angle steel is equal with side with the end face of top board after installing.Generally speaking, multiple stage water pump is arranged linearly, adopts straight angle steel; Multiple stage water pump is arranged curved, is more common in circular pumping plant, adopts arc-shaped angle steel.U-type groove is arranged on by top board service hatch, and angle steel to can be used as service hatch after fixing, and angle steel can arrange the guide rail installing lifting water pump.
During use, during the vertical passing through floors of outlet pipe 4, open U-lag in submarginal side, the pre-buried angle steel of notch or reserved groove, thus form a U-shaped hole.The radius of U-shaped hole arch section is greater than pipe radius, and angle steel can adopt straight angle steel or arc-shaped angle steel according to civil engineering form.Generally speaking, multiple stage water pump is arranged linearly, adopts straight angle steel; Multiple stage water pump is arranged curved, is more common in circular pumping plant, adopts arc-shaped angle steel.
During use, U-lag of the present invention is arranged on by top board service hatch, and service hatch is provided with service hatch cover plate 5, and angle steel to can be used as service hatch after fixing, for installing the guide rail of lifting water pump.Pipeline (cannot be blue) directly can pass U-shaped hole when installing; Or pipeline is through welded flange on pipeline again after U-type groove; Also can first by pipeline (having flange) through after U-lag, then seal notch with angle steel.This structure can avoid outlet conduit to utilize the form of elbow to walk around top board beam, need not elbow be set, reduce head loss, avoid causing current break-in owing to increasing elbow and cause the vibration of water pump, reduce the complexity in the difficulty of top board structure design and installation simultaneously.
The present invention is applicable to outlet pipe caliber DN50 ~ DN1200, the structure of various let-off pipe of water pump to penetrate through top plate, and instance graph of the present invention refers to Fig. 7.
Illustrate energy-saving benefit of the present invention below:
The head loss of pipeline is made up of frictional head loss and local head loss, and because straight length is general shorter, therefore frictional head loss can be ignored, and only needs to consider local head loss.If water delivery side of pump is DN400, outlet pipe is DN600, and the local loss coefficient of each pipe fitting is as shown in the table:
Note: notebook data is selected from " water supply and drainage design manual " first.
When adopting conventional structure, the head loss of pipeline
When adopting this energy-saving structure, the head loss of pipeline
Therefore the fractional energy savings of employing structure of the present invention is
As above known, adopt structure of the present invention greatly can reduce the head loss of pipeline, thus reduce water pump lift, reduce energy consumption, realize energy-conservation object.
Claims (3)
1. the construction method for the structure of let-off pipe of water pump to penetrate through top plate, it is characterized in that: described construction method comprises the steps: a, arranges U-type groove at a lateral edges of top board, the pre-buried angle steel of notch of U-type groove, thus forming a U-shaped hole, the radius in U-shaped hole is greater than the radius of outlet pipe; B, when installing, if outlet pipe does not manage orchid, direct by outlet pipe through U-shaped hole; If outlet pipe manage orchid and cannot through U-type groove time, then passes after U-type groove until outlet pipe and seal notch with angle steel again, or outlet pipe is through welded flange on outlet pipe again after U-type groove; After c, installation, angle steel need be equal with side with the end face of concrete roof.
2. the construction method of a kind of structure for let-off pipe of water pump to penetrate through top plate as claimed in claim 1, it is characterized in that: in a step, angle steel can adopt straight angle steel or arc-shaped angle steel according to civil engineering form, and angle steel is equal with side with the end face of concrete roof after installing.
3. the construction method of a kind of structure for let-off pipe of water pump to penetrate through top plate as claimed in claim 1, it is characterized in that: in a step, U-type groove is arranged on by concrete roof service hatch, and angle steel to can be used as service hatch after fixing, and angle steel is provided with the guide rail installing lifting water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100034.XA CN101775825B (en) | 2010-01-22 | 2010-01-22 | Structure used for let-off pipe of water pump to penetrate through top plate and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100034.XA CN101775825B (en) | 2010-01-22 | 2010-01-22 | Structure used for let-off pipe of water pump to penetrate through top plate and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101775825A CN101775825A (en) | 2010-07-14 |
| CN101775825B true CN101775825B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010100034.XA Active CN101775825B (en) | 2010-01-22 | 2010-01-22 | Structure used for let-off pipe of water pump to penetrate through top plate and construction method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712053A (en) * | 2015-03-19 | 2015-06-17 | 浙江汲泉泵业有限公司 | Fixing device for pressure water outlet pipe of integrated pump station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128955Y (en) * | 1992-07-25 | 1993-03-31 | 夏金亮 | Shuttering for closing opeing of floor |
| JP2003056052A (en) * | 2001-08-09 | 2003-02-26 | Mitsubishi Plastics Ind Ltd | Construction method for reclaiming existing piping |
| CN201169934Y (en) * | 2008-01-11 | 2008-12-24 | 上海市政工程设计研究总院 | Full bright open underground drainage pump room |
| CN201598670U (en) * | 2010-01-22 | 2010-10-06 | 上海市政工程设计研究总院 | Top plate structure |
-
2010
- 2010-01-22 CN CN201010100034.XA patent/CN101775825B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128955Y (en) * | 1992-07-25 | 1993-03-31 | 夏金亮 | Shuttering for closing opeing of floor |
| JP2003056052A (en) * | 2001-08-09 | 2003-02-26 | Mitsubishi Plastics Ind Ltd | Construction method for reclaiming existing piping |
| CN201169934Y (en) * | 2008-01-11 | 2008-12-24 | 上海市政工程设计研究总院 | Full bright open underground drainage pump room |
| CN201598670U (en) * | 2010-01-22 | 2010-10-06 | 上海市政工程设计研究总院 | Top plate structure |
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| CN101775825A (en) | 2010-07-14 |
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| C06 | Publication | ||
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jin Biao Inventor after: Wang Xiqing Inventor after: Yao Zhiliang Inventor after: Cang Hailong Inventor after: Liu Dongxu Inventor after: Wang Wei Inventor after: Feng Xiuzhen Inventor before: Jin Biao Inventor before: Wang Xiqing Inventor before: Yao Zhiliang Inventor before: Cang Hailong Inventor before: Liu Dongxu Inventor before: Wang Wei |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: JIN BIAO WANG XIQING YAO ZHILIANG ZANG HAILONG LIU DONGXU WANG WEI TO: JINBIAO WANG XIQING YAO ZHILIANG ZANG HAILONG LIU DONGXU WANG WEI FENG XIUZHEN |
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