CN207176725U - A kind of pump foundation secondary grout layer anti-drop structure - Google Patents
A kind of pump foundation secondary grout layer anti-drop structure Download PDFInfo
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- CN207176725U CN207176725U CN201720900790.8U CN201720900790U CN207176725U CN 207176725 U CN207176725 U CN 207176725U CN 201720900790 U CN201720900790 U CN 201720900790U CN 207176725 U CN207176725 U CN 207176725U
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- pump
- secondary grout
- grout layer
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Abstract
It the utility model is related to petrochemical industry console mode centrifugal pump basic field, and in particular to a kind of pump foundation secondary grout layer anti-drop structure, it is sequentially provided with from the bottom to top once pours pump foundation, secondary grout layer and the centrifugal pump bottom plate for disposing centrifugal pump body；Described once to pour the default reinforcing bar for being provided between pump foundation and secondary grout layer and being used for reinforcement connection, default reinforcing bar one end embedment is once poured below pump foundation top surface, and the other end stretches out once pouring pump foundation top surface and is embedded in the secondary grout layer；The centrifugal pump bottom plate is used for once pouring pump foundation leveling, and the centrifugal pump body bottom portion is fastened on secondary grout layer by connector through centrifugal pump bottom plate.The utility model can prevent final grouting layer from coming off, and ensure the operation of centrifugal pump superstructure.
Description
Technical field
It the utility model is related to petrochemical industry console mode centrifugal pump basic field, and in particular to a kind of pump foundation back-grouting
Layer anti-drop structure.
Background technology
Console mode centrifugal pump once pours as the common refining equipment in petroleum chemical industry, general take in its basis
Shaping, reserves anchor (bolt) hole and screed-coat uses the form of construction work of final grouting.
Specification《Petrochemical industry console mode centrifugal pump foundation design code》（SH/T 3057-2007）5.1 regulations：Basis
The final grouting layer of top surface, thickness are preferably 30mm ~ 50mm, and material preferably uses high strength and no shrinting back-grouting material.In China's oil
The High Strength Non-shrinking Filling Material that the general all code requirement of console mode centrifugation pump foundation final grouting layer is recommended in chemical industry, thickness
For 30mm ~ 50mm.Final grouting is carried out using this mode and pours basis, can meet that centrifugal pump is wanted for basic flatness
Ask.The form of construction work of final grouting has the characteristics of construction is simple, easy to operate, short construction period.But because centrifugal pump is grown
The vibrations of phase so that this final grouting layer will come off in about 2 years ~ 3 years pump operation later stage of centrifugation, final grouting layer and basis
Often occur that entirety comes off, so as to influence the operation of centrifugal pump superstructure.Such as：Wuhan Branch Company SINOPEC device
Newly-built dredge pump, this pump put into operation in July, 2014, but the pump foundation final grouting layer of in August, 2016 integrally comes off, and makes
Into dredge pump bottom plate lower floor, pump operation safety is influenceed.
The content of the invention
The purpose of this utility model is the drawbacks described above for prior art, there is provided a kind of pump foundation secondary grout layer is prevented
Dropping structure, prevent final grouting layer from coming off, ensure the operation of centrifugal pump superstructure.
To solve above technical problem, the technical solution of the utility model is：A kind of pump foundation secondary grout layer anti-dropout
Structure, its difference are：It is sequentially provided with from the bottom to top once pours pump foundation, secondary grout layer and is centrifuged for disposing
The centrifugal pump bottom plate of pump body；It is described once to pour the default steel for being provided between pump foundation and secondary grout layer and being used for strengthening connection
Muscle, default reinforcing bar one end embedment are once poured below pump foundation top surface, and it is embedding that the other end stretches out once pouring pump foundation top surface
Enter the secondary grout layer；The centrifugal pump bottom plate is used for once pouring pump foundation leveling, and the centrifugal pump body bottom portion leads to
Connector is crossed to be fastened on secondary grout layer through centrifugal pump bottom plate.
By above technical scheme, the pump foundation top surface that once pours is handled using dabbing.
By above technical scheme, the default reinforcing bar uses HPB300 level reinforcing bars, a diameter of 5 ~ 7mm, and length is 160 ~
200mm。
By above technical scheme, the default bar diameter is 6mm, length 180mm.
By above technical scheme, the default reinforcing bar presses spacing 350 ~ 450mm arranged in squares.
By above technical scheme, the default reinforcing bar presses spacing 400mm arranged in squares.
By above technical scheme, 140 ~ 160mm below the top surface of layer basis is once poured in default reinforcing bar one end embedment, separately
One end, which is stretched out, once pours layer basis 20 ~ 40mm of top surface.
By above technical scheme, 150mm below the top surface of layer basis, the other end are once poured in default reinforcing bar one end embedment
Stretch out and once pour layer basis top surface 30mm.
By above technical scheme, the secondary grout layer uses high strength and no shrinting grouting material to pour thickness as 30 ~ 50mm.
By above technical scheme, its intensity of the secondary grout layer is：It is not less than within 1 day 20MPa, is not less than 40MPa within 3 days,
It is not less than 50MPa within 28 days.
Prior art is contrasted, beneficial features of the present utility model are：The utility model can meet simultaneously centrifugal pump for
The requirement of basic top surface flatness, while can prevent that phase final grouting layer comes off after operation；A kind of pump of the present utility model
There is easy for construction, material to be easily obtained basic secondary grout layer anti-drop structure and its pouring technology, low cost, short time limit
Feature.
Brief description of the drawings
Fig. 1 is the pump foundation back-grouting structure sheaf diagrammatic cross-section of the utility model embodiment.
Fig. 2 is the pump foundation secondary grout layer structural plan schematic diagram of the utility model embodiment.
Fig. 3 is prior art pump foundation secondary grout layer structural profile illustration.
Fig. 4 is prior art pump foundation secondary grout layer structural plan schematic diagram.
Wherein：1- once pours pump foundation, 2- connectors, 3- centrifugal pumps body, 4- centrifugal pumps bottom plate, 5- back-groutings
Layer, 6- once pour pump foundation top surface, 7- presets reinforcing bar.
Embodiment
The utility model is described in further detail below by embodiment combination the drawings and specific embodiments.
With reference to figure 1 and Fig. 2, the utility model is a kind of pump foundation secondary grout layer anti-drop structure, and its difference exists
In：A kind of pump foundation secondary grout layer anti-drop structure, its difference are：It is sequentially provided with once pours pump from the bottom to top
Basis 1, secondary grout layer 5 and the centrifugal pump bottom plate 4 for disposing centrifugal pump body 3；It is described once to pour pump foundation 1 and secondary
The default reinforcing bar 7 for being used for strengthening connection is provided between grout blanket 5, pump foundation top is once poured in the default one end of reinforcing bar 7 embedment
Below face 6, the other end stretches out once pouring pump foundation top surface 6 and is embedded in the secondary grout layer 5；The centrifugal pump bottom plate 4 is used for
With once pouring the leveling of pump foundation 1, the bottom of centrifugal pump body 3 is fastened on secondary by connector through centrifugal pump bottom plate 4
On grout blanket 5.
Specifically, the pump foundation top surface 6 that once pours is handled using dabbing.
Specifically, the default reinforcing bar 7 uses HPB300 level reinforcing bars, a diameter of 5 ~ 7mm, length is 160 ~ 200mm.
Preferably, 7 a diameter of 6mm of default reinforcing bar, length 180mm.
Specifically, the default reinforcing bar 7 presses spacing 350 ~ 450mm arranged in squares.
Preferably, the default reinforcing bar 7 presses spacing 400mm arranged in squares.
Stretched specifically, layer basis top surface 140 ~ 160mm, other end below 6 are once poured in the one end of default reinforcing bar 7 embedment
Go out and once pour layer basis 20 ~ 40mm of top surface.
Preferably, layer basis top surface 150mm below 6 is once poured in the one end of default reinforcing bar 7 embedment, and the other end stretches out one
Secondary pouring layer basis top surface 30mm.
Specifically, the secondary grout layer 5 uses high strength and no shrinting grouting material to pour thickness as 30 ~ 50mm.
Specifically, described its intensity of secondary grout layer 5 is：It is not less than within 1 day 20MPa, is not less than 40MPa within 3 days, it is 28 days not small
In 50MPa.
A kind of pump foundation secondary grout layer anti-drop structure casting process, comprises the following steps successively：
（1）Foundation trench, which excavates and once pours pump foundation 1, to vibrate；
（2）Some reinforcing bars 7 first are preset in basic top surface before concrete initial set, pump foundation top is once poured in one end embedment
Below face, the other end, which stretches out, once pours pump foundation top surface；
（3）Before treating to carry out final grouting after pump foundation maintenance, the dabbing of pump foundation top surface 6 will be once poured；
（4）Centrifugal pump bottom plate 4 is subjected to leveling on basic top surface 6 is once poured；
（5）After the completion of leveling, then carry out pouring for secondary grout layer 5；
（6）After the completion for the treatment of that final grouting layer 5 conserves, centrifugal pump is fastened, completes pump installation.
Specifically, the default reinforcing bar 7 uses HPB300 level reinforcing bars, a diameter of 5 ~ 7mm, length is 160 ~ 200mm.
Preferably, the default reinforcing bar 7 presses spacing 350 ~ 450mm arranged in squares, and the default one end of reinforcing bar 7 embedment is once poured
140 ~ 160mm below the top surface of layer basis is filled, the other end, which stretches out, once pours layer basis 20 ~ 40mm of top surface.
Specifically, the secondary grout layer 5 uses high strength and no shrinting grouting material to pour thickness as 30 ~ 50mm.
Embodiment 1：
A kind of pump foundation secondary grout layer anti-drop structure is present embodiments provided, for preventing final grouting layer from coming off.
Refer to shown in Fig. 1 and Fig. 2, the pump foundation secondary grout layer anti-drop structure and its casting process preferred scheme bag
Include：
First, it is first pre- in basic top surface before concrete initial set after the completion of in foundation trench excavation and once, pouring basis is vibrated
If some a diameter of 6mm, length are 180mm reinforcing bar, bar-mat reinforcement uses spacing 400mm arranged in squares, one end embedment one
Below the top surface of secondary pouring layer basis, the other end, which stretches out, once pours layer basis top surface 30mm, and pump foundation uses one-shot forming.
Secondly, after once pouring basic top surface and presetting reinforcing bar, treat once pour base after pump foundation maintenance
Plinth top surface dabbing.
Then, after centrifugal pump arrival, pump bottom plate is placed on pump foundation and carries out leveling, after the completion of leveling, using height
Strong shrinkage-void grouting material pours 50mm thickness secondary grout layers.
Finally, after the completion for the treatment of that final grouting layer is conserved, the foundation bolt nut for connection is tightened, completes pump peace
Dress.
Above content is to combine specific embodiment further detailed description of the utility model, it is impossible to is assert
Specific implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be considered as category
In the scope of protection of the utility model.
Claims (10)
- A kind of 1. pump foundation secondary grout layer anti-drop structure, it is characterised in that：It is sequentially provided with once pours pump from the bottom to top Basis, secondary grout layer and the centrifugal pump bottom plate for disposing centrifugal pump body；It is described once to pour pump foundation and back-grouting The default reinforcing bar for being used for strengthening connection is provided between layer, default reinforcing bar one end embedment is once poured below pump foundation top surface, The other end, which stretches out, once pours the pump foundation top surface insertion secondary grout layer；The centrifugal pump bottom plate is used for once pouring pump Basic leveling, the centrifugal pump body bottom portion are fastened on secondary grout layer by connector through centrifugal pump bottom plate.
- 2. pump foundation secondary grout layer anti-drop structure according to claim 1, it is characterised in that：It is described once to pour pump Basic top surface is handled using dabbing.
- 3. pump foundation secondary grout layer anti-drop structure according to claim 1, it is characterised in that：The default reinforcing bar is adopted With HPB300 level reinforcing bars, a diameter of 5 ~ 7mm, length is 160 ~ 200mm.
- 4. pump foundation secondary grout layer anti-drop structure according to claim 1, it is characterised in that：The default reinforcing bar is straight Footpath is 6mm, length 180mm.
- 5. pump foundation secondary grout layer anti-drop structure according to claim 3, it is characterised in that：The default reinforcing bar is pressed Spacing 350 ~ 450mm arranged in squares.
- 6. pump foundation secondary grout layer anti-drop structure according to claim 3, it is characterised in that：The default reinforcing bar is pressed Spacing 400mm arranged in squares.
- 7. pump foundation secondary grout layer anti-drop structure according to claim 3, it is characterised in that：The default reinforcing bar one 140 ~ 160mm below the top surface of layer basis is once poured in end embedment, and the other end, which stretches out, once pours layer basis 20 ~ 40mm of top surface.
- 8. pump foundation secondary grout layer anti-drop structure according to claim 3, it is characterised in that：The default reinforcing bar one 150mm below the top surface of layer basis is once poured in end embedment, and the other end, which stretches out, once pours layer basis top surface 30mm.
- 9. pump foundation secondary grout layer anti-drop structure according to claim 1, it is characterised in that：The secondary grout layer High strength and no shrinting grouting material is used to pour thickness as 30 ~ 50mm.
- 10. pump foundation secondary grout layer anti-drop structure according to claim 9, it is characterised in that：The back-grouting Layer its intensity be：It is not less than within 1 day 20MPa, is not less than within 3 days 40MPa, is not less than 50MPa within 28 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900790.8U CN207176725U (en) | 2017-07-24 | 2017-07-24 | A kind of pump foundation secondary grout layer anti-drop structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900790.8U CN207176725U (en) | 2017-07-24 | 2017-07-24 | A kind of pump foundation secondary grout layer anti-drop structure |
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| CN207176725U true CN207176725U (en) | 2018-04-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867686A (en) * | 2017-07-24 | 2018-11-23 | 武汉炼化工程设计有限责任公司 | A kind of pump foundation secondary grout layer anti-drop structure and its casting process |
-
2017
- 2017-07-24 CN CN201720900790.8U patent/CN207176725U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867686A (en) * | 2017-07-24 | 2018-11-23 | 武汉炼化工程设计有限责任公司 | A kind of pump foundation secondary grout layer anti-drop structure and its casting process |
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