CN108799084A - A kind of pump installation check method - Google Patents
A kind of pump installation check method Download PDFInfo
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- CN108799084A CN108799084A CN201710295369.3A CN201710295369A CN108799084A CN 108799084 A CN108799084 A CN 108799084A CN 201710295369 A CN201710295369 A CN 201710295369A CN 108799084 A CN108799084 A CN 108799084A
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- flange
- pump
- pumping hole
- pipeline
- pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of pump installation check method, it is characterised in that include the following steps：A, the third time calibration of the first time calibration of pump, second of calibration of b, pump, c, pump includes step：1）In pipe installation process, several guiding trestles are installed（9）And adjustable support, 2）In two corresponding pumping hole pipe flanges（11）With pumping hole flange（12）Surface perimeter edge Checkpointing（21）, 3）Pipeline pressure test purges, and 4）If two flanges do not meet code requirement in the state of nature, pipeline section holder can be adjusted, 5）The 1st flange of pumping hole pipeline and pumping hole flange centering are checked and accepted.The present invention has inspection method design comprehensive, step is rigorous, operability is strong, pumping hole flange can effectively be controlled at a distance from pipe flange, and the advantages of pumping the pipe flange of inlet and outlet pipeline in a free state and the concentricity of pump flange center and pipe flange face and the depth of parallelism for pumping flange face, reaching the Stressless Pipeline Connection of pump.
Description
Technical field
The present invention relates to a kind of inspection methods of pumping line, specifically, being a kind of pump installation check method.
Background technology
National standard wind turbine, compressor, pump installing engineering construction and acceptance specification (GB50275-2010), in the pump the of chapter 4
It is pointed out in one section general provision：Intake line and output channel should have respective holder, must not pump the weight for directly bearing pipeline；
Pipeline should recheck the former centering precision of pump, when finding that pipeline connection causes deviation, should adjust pipeline with after pump connection.
Currently, the difficult point in pump installation is to pump the pipe flange of inlet and outlet pipeline in a free state and pump flange center
Concentricity and pipe flange face with pump flange face the depth of parallelism etc. be extremely difficult to code requirement.
At home in specification, checks and accepts and pump installation examination in Pipe installing and separately carry out, do not combined adequately, institute
Often to there is separated examination, and have ignored the importance that pump is finally calibrated.At abroad, Unite States Standard imports and exports flange to pump
The requirement of nozzle is extremely stringent, and the feelings such as pumping hole flange distance is too far away or concentricity is undesirable occurs in the final calibration pumped
Condition, examination are very difficult to pass through.In foreign countries' pump and pipeline projects during construction is delivered for a check, the primary success rate that corrects is extremely low, past
It is past to cause largely to do over again, wasting manpower and material resources.
It is thus known that external pump and Pipe installing in there are problems that it is above-mentioned various inconvenient and, China's pump and pipeline item
Mesh is there is an urgent need to propose that consummate pump installation check technical measures change present situation not fully up to expectations, to adapt to increasingly fierce warp
Ji globalized competetion situation.
Invention content
The purpose of the present invention is to propose a kind of pump installation check method of Stressless Pipeline Connection.
To achieve the above object, technical solution of the invention is：
A kind of pump installation check method, it is characterised in that include the following steps：
A, the first time calibration of pump
The basis of pump, which is checked and accepted, to be finished, and makees once grouting after pumping unit is in place, the first time calibration pumped；
B, second of calibration of pump
Pumping unit is in place, and after the fully sedimentation of pumping unit basis, then second of the calibration pumped is made back-grouting, pumped
Import and export the piping installation of first segment pipe and the first segment pipe of pump discharge；
C, the third time calibration of pump includes the following steps：
1）In pipe installation process, the first segment pipe of the first segment pipe of pump inlet and pump discharge, the second segment pipe of pump inlet and pump
Several guiding trestles and adjustable support will be installed by exporting the second segment pipe pipe, and the cross of pumping hole pipe flange is limited with guiding trestle
To offset, with adjustable support restriction conduit vertical direction displacement；By the first segment pipe of the first segment pipe of import and pump discharge
It fully unclamps, so that pump lifting is in place；It is placed between pumping hole and pipe flange piece using the temporary shim of gasket stack pile,
Reach defined requirement according to pumping hole pipe flange and pumping hole flange is tightened by interleaved order substep；
2）In two corresponding pumping hole pipe flanges and pumping hole flange surface circumferential edges Checkpointing, checkpointing is
The point of eight circumference in equal parts is set on the circumference of two flanges is each；When welding pumping hole 1 flange of pipeline, need with clearance gauge inspection and pump
The gap of mouth flange, makes gap reach design value；
3）In pipeline pressure test purge, need the connection for removing the 1st flange and pumping hole flange of pumping hole pipeline, remove filter and
Check-valves, in pipeline reseting procedure after pipeline pressure test purges, it should carry out the 1st flange of pumping hole pipeline and pumping hole flange
Calibration again；When pipeline resets, the 2nd flange of pumping hole pipeline will ensure that meeting specification in the state of nature in two flanges wants
It asks；
4）If two flanges do not meet code requirement in the state of nature, pipeline section holder can be adjusted；If still
Cannot so meet the pipe flange of pipeline in a free state in specification and pump flange center concentricity and pipe flange face with
The requirement of the depth of parallelism of flange face is pumped, weld bond is just cut and does pipeline gold mouth, it must be to pump during doing pipeline gold mouth
Mouth is protected, and prevents any impurity from entering pump internal；
5）After the 1st flange of pumping hole pipeline and pumping hole flange centering acceptance(check), permanent spacers and bolt need to be installed, pulled using torque
Hand is tightened in three times as requested, while need to set up dial gauge, to check the displacement of pumping unit, is made a record；If hundred
Divide meter reading to exceed tolerance, need to final essence school be carried out to pump again, and dial gauge is installed, design is reached to adjust motor
It is required that.
The pump installation check method of the present invention can also be further achieved by the following technical measures.
Method above-mentioned, wherein when the checkpoint checks, two flange face depth of parallelisms need to reach：DN250 pipes below
It is within 0.25mm that road, which requires deviation, and it is within 0.75mm that the road of DN250 or more, which requires deviation,；The deviation of two flange spacing permits
Perhaps the ranging from +/- 1.5mm of gasket, it is desirable that the deviation of bolt hole center is no more than 1.5mm between two flanges.
Method above-mentioned, wherein when the first segment pipe of the import and the first segment pipe of pump discharge unclamp, come loose pumping hole pipe
The connection bolt of road the 1st flange and pumping hole flange takes out bolt and temporary shim, under flange free state, to diameter DN150
Pipeline below first checks the concentricity between two flanges, then with clearance gauge to the 1st flange of pumping hole pipeline and pumping hole flange
The gap that four direction is set on circumference is each is checked, it is ensured that the depth of parallelism.
Method above-mentioned, wherein when the first segment pipe of the import and the first segment pipe of pump discharge unclamp, come loose pumping hole pipe
The connection bolt of road the 1st flange and pumping hole flange takes out bolt and temporary shim, under flange free state, to diameter DN150
Above pipeline first checks the concentricity between two flanges, then with clearance gauge to the 1st flange of pumping hole pipeline and pumping hole flange
The gap that eight directions are set on circumference is checked, it is ensured that the depth of parallelism.
Method above-mentioned, wherein when the pipeline resets, the installation bolt between pumping hole pipe flange and pumping hole flange
（16）And permanent spacers, using the qualified torque wrench of verification according to bolt torque table respectively to the 2nd flange of pumping hole pipeline and mistake
Filter, the 2nd flange of pumping hole pipeline are tightened with check-valves bolt, and the sequence interlocked using cross when tightening first twists the power of half, so
It fully tightens again afterwards.
Method above-mentioned, wherein the final smart school of the pump 1 must satisfy following requirements：
1st requires：All pump foundation bolt, parallels all meet code requirement；
2nd requires：Elastic motor（2）Bolt reads the changing value of dial gauge respectively, and it is qualification to be less than 0.05mm；
3rd requires：In not connected the first segment pipe of import）Under pump discharge first segment pipe condition, pump is parallel with motor shaft
Degree deviation allowable range is +/- 0.05mm；Shaft coupling radial missing should be less than 0.05mm；The distance between shaft coupling two parts are inclined
Poor allowable range is +/- 0.25mm；
4th requires：Cover coupler protective casing.
After adopting the above technical scheme, the pump installation check method of the present invention has the following advantages：
1, inspection method design is comprehensive, and step is rigorous, and operability is strong；
2, pumping hole flange can effectively be controlled at a distance from pipe flange, and the pipeline of pump inlet and outlet pipeline in a free state
The depth of parallelism of flange and the concentricity and pipe flange face and pump flange face of pump flange center, reaches the Stressless Pipeline Connection of pump；
3, calibration of pump success rate is improved, code requirement is met, realizes the additional external force that pump will not be brought after calibration by pipeline,
Promote to form ripe pumping hole pipeline centering and calibration of pump technology, and save manpower, reduce it is unnecessary does over again, reduce engineering at
This.
Description of the drawings
Fig. 1 is the attachment structure schematic diagram of the pipeline and pump of the embodiment of the present invention；
Fig. 2 is the arrangement schematic diagram of the pumping hole pipe flange and pumping hole flange of the embodiment of the present invention；
Fig. 3 is the flange checkpointing schematic diagram of the embodiment of the present invention；
Fig. 4 is the calibration schematic diagram between the pump and motor of the embodiment of the present invention.
In figure, 1 pump, 2 motor, 3 the first segment pipes of pump inlet, 4 filters, 5 the second segment pipes of pump inlet, 6 pump discharges
First segment pipe, 7 check-valves, 8 the second segment pipes of pump discharge, 9 guiding trestles, 10 adjustable supports, the 1st flange of 11 pumping hole pipeline,
12 pumping hole flanges, the 2nd flange of 13 pumping hole pipeline, 14 pumps and motor coupler axis, 15 gaskets, 16 bolts, 17 clearance gauges, 18 shaft couplings
Protective cover, 19 dial gauges, 20 pumping units basis, 21 flange checkpoints.
Specific implementation mode
With reference to embodiments and its attached drawing illustrates further the present invention.
Embodiment 1
Technical solution of the invention is：
The pump installation check method of the present invention, includes the following steps：
A, the first time calibration of pump
It is the attachment structure schematic diagram of the pipeline and pump of the embodiment of the present invention referring now to Fig. 1, Fig. 1.The basis of pump, which is checked and accepted, to be finished,
Make once grouting after pumping unit is in place, the first time calibration pumped.
B, second of calibration of pump
Pumping unit is in place, and after the fully sedimentation of pumping unit basis 20, then second of the calibration pumped is made back-grouting, carried out
The piping installation of pump inlet and outlet first segment pipe 3 and the first segment pipe of pump discharge 6.
C, the third time calibration of pump includes the following steps：
It is complete in the secondary calibration of conventional pump after the fully sedimentation of pumping unit basis 20, after the completion of back-grouting, it can be pumped
Import and export the piping installation of first segment pipe 3 and 6.
In pipe installation process, pump inlet and outlet first segment pipe 3 and 6, second segment 5 and 8 pipes will install 9 and of sufficient holder
10, guiding trestle 9 can limit the lateral shift of pumping hole pipe flange 11, and adjustable support 10 can be with restriction conduit in vertical direction
Displacement.
Fig. 2 is the arrangement schematic diagram of the pumping hole pipe flange and pumping hole flange of the embodiment of the present invention.Weld pumping hole pipe
When road flange 11, need to check the gap with pumping hole flange 12 with clearance gauge 17.
Fig. 3 is the flange checkpointing schematic diagram of the embodiment of the present invention.It carries out checking two flanges according to checkpoint 21
The face depth of parallelism, DN250 requirements for pipes deviations below are within 0.25mm, and the requirements for pipes deviation of DN250 or more is 0.75mm
Within；And the allowable range of flange spacing is the +/- 1.5mm of gasket, it is desirable that bolt hole center between two flanges 11 and 12
Deviation is no more than 1.5mm.
In pipeline pressure test purge, needs to remove 11 and 12 connection of pumping hole flange, remove filter 4 and check-valves 7,
It carries out in the pipeline reseting procedure such as Fig. 1, it should complete the calibration again of pipeline.Finally calibration content is as follows:
1) the first segment pipe of pump inlet and outlet 3 and 6 is fully unclamped, lifting is in place.
2) temporary shim 15 of 15 stack pile of permanent spacers is used to be placed between pumping hole and pipe flange.According to by staggeredly
Sequence substep, which fully tightens flange 11 and 12, reaches defined requirement.
3) adjustment adjustable support 10 adequately supports the first segment pipe 3 and 6 of pump inlet and outlet.Reset pumping hole pipeline
2nd flange, it is ensured that meet code requirement in the state of nature in two pipe flanges.
4) installation bolt 16 and permanent spacers 15, using the qualified torque wrench of verification according to bolt torque table respectively to pipe
Road flange 13 and filter 4, pipe flange 13 are tightened with 7 bolt 16 of check-valves, and the sequence interlocked using cross first twists one
Half power, then fully screws on again.
5) come loose the connection bolt 16 of pumping hole flange 11 and 12, takes out bolt 16 and temporary shim 15.In a free state,
Then concentricity between first control flange uses 4 directions of the clearance gauge 17 to flange 11 and 12（8, the pipeline of DN150 or more）
Gap checked, it is ensured that the depth of parallelism.
If 6) undesirable, pipeline section holder 10 can be adjusted；If pipeline in specification still cannot be met
Pipe flange in a free state is wanted with the concentricity of pump flange center and pipe flange face with the depth of parallelism for pumping flange face
It asks, weld bond must be cut and do gold mouth.Pumping hole must be protected during doing gold mouth, prevents any impurity from entering
Inside pump 1.
7) after pumping hole pipe flange centering flange 11 and 12 acceptance(check)s, permanent spacers 15 and bolt 16 need to be installed, used
Torque wrench is tightened in three times as requested.Meanwhile dial gauge 19 need to be set up, it checks the displacement of pumping unit 1, does easy to remember
Record.
Fig. 4 is the calibration schematic diagram between the pump and motor of the embodiment of the present invention.If percentage meter reading is inclined beyond allowing
Difference need to carry out final smart school to pump 1 again.Dial gauge 19 is installed, motor 2 can be slightly adjusted, reach requirement.But it must satisfy
Following requirements：
A) all foundation bolts, parallels all meet code requirement
B) bolt at 4 weak foots of elastic motor 2 reads the changing value of dial gauge respectively, and it is qualification to be less than 0.05mm.
C) in not connected pipeline 3 and 6, the parallel misalignment allowable range of pump 1 and 2 axis 14 of motor is +/-
0.05mm.Shaft coupling radial missing should be less than 0.05mm.The distance between shaft coupling two parts deviation allowable range is +/-
0.25mm。
D) coupler protective casing 18 is added after the completion of, verification terminates.
The present invention has substantive distinguishing features and significant technological progress, and pump installation check method of the invention can be effective
Pumping hole flange is controlled at a distance from pipe flange, and the pipe flange of pump inlet and outlet pipeline in a free state and pump flange center
Concentricity and pipe flange face and pump flange face the depth of parallelism, improve calibration of pump success rate, meet code requirement, realize that pump exists
The additional external force that will not be brought by pipeline after calibration promotes to form ripe pumping hole pipeline centering and calibration of pump technology, and saves
Human-saving reduces unnecessary do over again.
Above example is used for illustrative purposes only rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or variation.Therefore, all equivalent
Technical solution should also belong to scope of the invention, should be limited by each claim.
Claims (6)
1. a kind of pump installation check method, it is characterised in that include the following steps：
A, the first time calibration of pump
The basis of pump, which is checked and accepted, to be finished, and makees once grouting after pumping unit is in place, the first time calibration pumped；
B, second of calibration of pump
Pumping unit is in place, pumping unit basis（20）Fully after sedimentation, then back-grouting is made in second of the calibration pumped, into
Row pump inlet and outlet first segment pipe（3）With the first segment pipe of pump discharge（6）Piping installation；
C, the third time calibration of pump includes the following steps：
1）In pipe installation process, the first segment pipe of pump inlet（3）With the first segment pipe of pump discharge（6）, pump inlet second segment pipe
Road（5）With pump discharge the second segment pipe pipe（8）Several guiding trestles will be installed（9）And adjustable support（10）, with guiding trestle
（9）Limit pumping hole pipe flange（11）Lateral shift, with adjustable support（10）Displacement of the restriction conduit in vertical direction；It will be into
The first segment pipe of mouth（3）With the first segment pipe of pump discharge（6）It fully unclamps, so that pump lifting is in place；Using with gasket（15）Together
The temporary shim of thickness is placed between pumping hole and pipe flange piece, according to by interleaved order substep by pumping hole pipe flange（11）
With pumping hole flange（12）It tightens and reaches defined requirement；
2）In two corresponding pumping hole pipe flanges（11）With pumping hole flange（12）Surface perimeter edge Checkpointing（21）,
Checkpointing is the point that eight circumference in equal parts are set on the circumference of two flanges is each；Weld the 1st flange of pumping hole pipeline（11）When, it needs
Use clearance gauge（17）It checks and pumping hole flange（12）Gap, so that gap is reached design value；
3）In pipeline pressure test purge, need to remove the 1st flange of pumping hole pipeline（11）With pumping hole flange（12）Connection, remove
Filter（4）And check-valves（7）, in pipeline reseting procedure after pipeline pressure test purges, it should carry out pumping hole pipeline the 1st
Flange（11）With pumping hole flange（12）Calibration again；When pipeline resets, the 2nd flange of pumping hole pipeline（13）Ensure in two methods
Orchid meets code requirement in the state of nature；
4）It, can be to pipeline section holder if two flanges do not meet code requirement in the state of nature（10）It is adjusted；Such as
Fruit still cannot meet the concentricity and pipe flange of the pipe flange of pipeline in a free state and pump flange center in specification
The requirement in face and the depth of parallelism of pump flange face just cuts weld bond and does pipeline gold mouth, necessary during doing pipeline gold mouth
Pumping hole is protected, prevents any impurity from entering pump（1）It is internal；
5）After the 1st flange of pumping hole pipeline and pumping hole flange centering acceptance(check), permanent spacers need to be installed（15）And bolt（16）, adopt
It is tightened in three times as requested with torque wrench, while dial gauge need to be set up（19）, to check pumping unit（10）Displacement,
It makes a record；It, need to be again to pump if percentage meter reading exceeds tolerance（1）Final smart school is carried out, and dial gauge is installed（19）,
To adjust motor（2）Reach design requirement.
2. pump installation check method as described in claim 1, which is characterized in that the checkpoint（21）When inspection, two methods
The blue face depth of parallelism need to reach：DN250 requirements for pipes deviations below are the requirements for pipes deviation of DN250 or more within 0.25mm
Within 0.75mm；The deviation allowable range of two flange spacing is the +/- 1.5mm of gasket, it is desirable that bolt hole between two flanges
The deviation at center is no more than 1.5mm.
3. pump installation check method as described in claim 1, which is characterized in that the first segment pipe of the import（3）With pump out
The first segment pipe of mouth（6）When release, come loose the 1st flange of pumping hole pipeline（11）With pumping hole flange（12）Connection bolt（16）, take
Go out bolt and temporary shim, under flange free state, to diameter DN150 pipelines below, first between two flanges of inspection
Then concentricity uses clearance gauge（11）To the 1st flange of pumping hole pipeline（11）With pumping hole flange（12）Circumference it is each on set four direction
Gap checked, it is ensured that the depth of parallelism.
4. pump installation check method as described in claim 1, which is characterized in that the first segment pipe of the import（3）With pump out
The first segment pipe of mouth（6）When release, come loose the 1st flange of pumping hole pipeline（11）With pumping hole flange（12）Connection bolt（16）, take
Go out bolt and temporary shim, under flange free state, to the pipeline of diameter DN150 or more, first between two flanges of inspection
Then concentricity uses clearance gauge（11）To the 1st flange of pumping hole pipeline（11）With pumping hole flange（12）Circumference on set eight directions
Gap is checked, it is ensured that the depth of parallelism.
5. pump installation check method as described in claim 1, which is characterized in that when the pipeline resets, in pumping hole tube method
It is blue（11）With pumping hole flange（12）Between installation bolt（16）And permanent spacers（15）, using the qualified torque wrench of verification according to
Bolt torque table is respectively to the 2nd flange of pumping hole pipeline（13）With filter（4）, the 2nd flange of pumping hole pipeline（13）With check-valves（7）
Bolt is tightened, and the sequence interlocked using cross when tightening first is twisted the power of half, then fully tightened again.
6. pump installation check method as described in claim 1, which is characterized in that the final smart school of the pump 1 includes that must expire
Sufficient following requirements：
1st requires：All pump foundation bolt, parallels all meet code requirement；
2nd requires：Elastic motor（2）Bolt reads the changing value of dial gauge respectively, and it is qualification to be less than 0.05mm；
3rd requires：In not connected the first segment pipe of import（3）With the first segment pipe of pump discharge（6）In the case of, pump（1）With motor
（2）Axis（14）Parallel misalignment allowable range be +/- 0.05mm；Shaft coupling radial missing should be less than 0.05mm；Shaft coupling two
The distance between part deviation allowable range is +/- 0.25mm；
4th requires：Cover coupler protective casing（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295369.3A CN108799084B (en) | 2017-04-28 | 2017-04-28 | Pump installation inspection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295369.3A CN108799084B (en) | 2017-04-28 | 2017-04-28 | Pump installation inspection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108799084A true CN108799084A (en) | 2018-11-13 |
| CN108799084B CN108799084B (en) | 2020-03-06 |
Family
ID=64070659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710295369.3A Active CN108799084B (en) | 2017-04-28 | 2017-04-28 | Pump installation inspection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108799084B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296783A (en) * | 1995-04-24 | 1996-11-12 | Iseki & Co Ltd | Suction pipe mounting device |
| CN202972193U (en) * | 2012-12-20 | 2013-06-05 | 中国机械工业建设集团有限公司 | Stress-free flexible pipe installing structure |
| CN104344073A (en) * | 2013-07-23 | 2015-02-11 | 李孝虎 | Chemical pipe installation method |
| CN205173070U (en) * | 2015-11-24 | 2016-04-20 | 安德里茨（中国）有限公司 | Pump mounting structure |
| CN106286200A (en) * | 2015-06-27 | 2017-01-04 | 上海梅山钢铁股份有限公司 | Split type vacuum pump and installation method thereof |
-
2017
- 2017-04-28 CN CN201710295369.3A patent/CN108799084B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296783A (en) * | 1995-04-24 | 1996-11-12 | Iseki & Co Ltd | Suction pipe mounting device |
| CN202972193U (en) * | 2012-12-20 | 2013-06-05 | 中国机械工业建设集团有限公司 | Stress-free flexible pipe installing structure |
| CN104344073A (en) * | 2013-07-23 | 2015-02-11 | 李孝虎 | Chemical pipe installation method |
| CN106286200A (en) * | 2015-06-27 | 2017-01-04 | 上海梅山钢铁股份有限公司 | Split type vacuum pump and installation method thereof |
| CN205173070U (en) * | 2015-11-24 | 2016-04-20 | 安德里茨（中国）有限公司 | Pump mounting structure |
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| Publication number | Publication date |
|---|---|
| CN108799084B (en) | 2020-03-06 |
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