CN105927573A - Water pressure testing method and device of ultraheavy and ultralarge compressor shell - Google Patents
Water pressure testing method and device of ultraheavy and ultralarge compressor shell Download PDFInfo
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- CN105927573A CN105927573A CN201610285396.8A CN201610285396A CN105927573A CN 105927573 A CN105927573 A CN 105927573A CN 201610285396 A CN201610285396 A CN 201610285396A CN 105927573 A CN105927573 A CN 105927573A
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- casing
- chest
- low pressure
- water
- chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
Abstract
The invention discloses a water pressure testing method and a device of a ultraheavy and ultralarge compressor shell, and belongs to the technical field of space division. The water pressure testing device of the ultraheavy and ultralarge compressor shell comprises a support mechanism contacted with a first shell, a pressure testing mechanism arranged in the first shell, a cavity separation tool flange for dividing the first shell into a low-pressure cavity and a high-pressure cavity, a thin position of the first shell located in the low-pressure cavity, a water passing mechanism connected with the first shell, and a water feeding mechanism communicated with the low-pressure cavity and the high-pressure cavity through the water passing mechanism. The water pressure testing method and the device of the ultraheavy and ultralarge compressor shell reduce the shell deformation risk, smoothly once finish the water pressure test, and save the cost, the time and the labors.
Description
Technical field
The present invention relates to spatial division technology field, the hydraulic pressure particularly to overweight ultra-large type compressor case tries
Test method and device.
Background technology
Centrifugal mixed type Large Air Separation Devices compressor bank is added for axial flow, its air compressor machine casing centrifugal step
The water pressure test need to be carried out.It is different from the horizontally split centrifugal compressor casing of routine, due to its air inlet side
For the exit casing of conventional axial flow compressor, therefore there is not bearing district, seal area in its side, for greatly
The uncovered form of diameter, the pressure of this side also has relatively big difference with what pressure rear.Additionally, this machine
The structure of shell is thin-wall construction portion, high to requirement on machining accuracy again, it is easy to be deformed, by often
Rule mode carries out the water pressure test the biggest risk.
Summary of the invention
The present invention provides hydraulic test method and the device of overweight ultra-large type compressor case, solve or
Part solves in prior art and carries out the water pressure test by conventional method, and thin cabinet weak position will be held
By great pressure, making whole casing deformation of products, cause water pressure test failure, casing is deformed
It is difficult to repair, heavy then cause the technical problem scrapped.
According to an aspect of the invention, it is provided the hydraulic pressure examination of a kind of overweight ultra-large type compressor case
Proved recipe method, the centrifugal step of described air compressor includes the first casing and the second casing, it is characterised in that
Described test method comprises the following steps: arrange supporting mechanism according to the supporting leg size of described first casing,
Described first casing is propped up by described supporting mechanism；Overturn described first casing and make described first casing
Upward, described supporting mechanism supports described first casing to split；Examination is installed in described first casing
Press mechanism, described first casing is divided into low pressure chamber and high pressure chest, described first machine by described pressure testing mechanism
The weak location of shell is in described low pressure chamber；Low pressure chamber and the high pressure chest of described first casing are filled to
Split, is connected described second casing with described first casing；Water filling by described second casing
Mouth carries out water filling until water is full, is then blocked by described water filling port；High pressure chest is suppressed to the first pressure
After setting value, described low pressure chamber is suppressed to the first pressure set points, if described low pressure chamber is water-tight, pressure
Power does not declines, and continues to suppress described high pressure chest to the second pressure set points, and described first pressure sets
Value is less than described second pressure set points；Low pressure chamber and high pressure chest are discharged water, checks described first casing
And second deformation of casing.
Further, described supporting mechanism includes: the first square chest；Second square chest, with described first party
Case connects；Third party's case, is connected with described second square chest, described third party's case and described first casing
Contact.
Further, the height sum of described first square chest, the second square chest and third party's case and described the
The supporting leg size of one casing matches.
Further, described pressure testing mechanism includes: point chamber frock flange, is arranged on described first casing
In, described first casing is divided into low pressure chamber and high pressure chest, described first machine by described point of chamber frock flange
The weak location of shell is in low pressure chamber.
Further, the hydraulic test method of the present invention overweight ultra-large type compressor case also includes:
Between described tuyere flange and described first casing, the first sealing ring is set；In described first casing and institute
State and the second sealing ring is set between the second casing.
According to an aspect of the present invention, it is provided that the water pressure test of a kind of overweight ultra-large type compressor case
Device, the centrifugal step of described air compressor includes the first casing and the second casing, described second casing
On offer steam vent and water injection hole, described assay device includes: supporting mechanism, with described first machine
Shell contacts；Pressure testing mechanism, is arranged in described first casing, and described point of chamber frock flange is by described
One casing is divided into low pressure chamber and high pressure chest, the weak location of described first casing to be in low pressure chamber；Water flowing
Mechanism, is connected with described first casing；Water feeding machine structure, by described water flowing mechanism and described low pressure chamber
And high pressure chest connection.
Further, described supporting mechanism includes: the first square chest；Second square chest, with described first party
Case connects；Third party's case, is connected with described second square chest, described third party's case and described first casing
Contact；The height sum of described first square chest, the second square chest and third party's case and described first casing
Supporting leg size matches.
Further, described pressure testing mechanism includes: point chamber frock flange, is arranged on described first casing
In, described first casing is divided into low pressure chamber and high pressure chest, described first machine by described point of chamber frock flange
The weak location of shell is in low pressure chamber.
Further, the hydraulic test method of the present invention overweight ultra-large type compressor case also includes: the
One sealing ring, is arranged between described tuyere flange and described first casing；Second sealing ring, is arranged
Between described first casing and described second casing.
The hydraulic test method of the overweight ultra-large type compressor case that the present invention provides is according to the first casing
Supporting leg size arranges supporting mechanism, and the first casing is propped up by supporting mechanism, the air port of the first casing upward,
Tuyere flange is installed at air port, tuyere flange arranges valve, overturns the first casing and make the first machine
Upward, supporting mechanism supports the first casing to the split of shell, installs pressure testing mechanism in the first casing,
First casing is divided into low pressure chamber and high pressure chest, the weak location of the first casing to be in low pressure by pressure testing mechanism
Chamber, water pump is filled to split by valve to low pressure chamber and the high pressure chest of the first casing, by
Two casing are connected with the first casing, carry out water filling by the water filling port of the second casing until water is full, then
Water filling port is blocked, high pressure chest is suppressed and low pressure chamber is suppressed to the first setting value to the first setting value,
If low pressure chamber is interior water-tight, pressure does not declines, and suppresses high pressure chest to the second setting value, and valve is put
Water, checks the first casing and the deformation of the second casing, by the design pressure to the first casing both sides
Power is poor, utilizes the pressure testing mechanism of the first casing to be separated, respectively low pressure chamber and the height to casing both sides
Different pressure is beaten in pressure chamber, 40% before making the pressure of the first thin cabinet weak part be reduced to, greatly
The risk reducing the first casing deformation, the most once complete the water pressure test, cost-effective, time
Between and manpower.
Accompanying drawing explanation
The structural representation of the lower house that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 divides chamber schematic diagram for the lower house that the embodiment of the present invention provides.
Detailed description of the invention
See Fig. 1-2, the hydraulic pressure of a kind of overweight ultra-large type compressor case that the embodiment of the present invention provides
Test method, the centrifugal step of described air compressor includes the first casing 1 and the second casing, described examination
Proved recipe method comprises the following steps:
Step 1, arranges supporting mechanism, described support machine according to the supporting leg size of described first casing 1
Described first casing 1 is propped up by structure；
Step 2, overturns described first casing 1 and makes the split of described first casing upward, described
Support mechanism supports described first casing 1；
Step 3, installs pressure testing mechanism in described first casing 1, and described pressure testing mechanism is by described the
One casing 1 is divided into low pressure chamber 5 and high pressure chest 6, the weak location of described first casing to be in described low
Pressure chamber 5；
Step 4, is filled to split by low pressure chamber 5 and the high pressure chest 6 of described first casing 1, will
Described second casing is connected with described first casing 1；
Step 5, carries out water filling by the water filling port of described second casing until water is full, then by described
Water filling port blocks；
Step 6, high pressure chest 6 is suppressed to the first pressure set points described low pressure chamber 5 is suppressed to
First pressure set points, if described low pressure chamber 5 is water-tight, pressure does not declines, and continues described high pressure
Chamber 6 is suppressed to the second pressure set points, and described first pressure set points sets less than described second pressure
Value；
Step 7, discharges water low pressure chamber 5 and high pressure chest 6, checks described first casing 1 and the second machine
The deformation of shell.
The structure of supporting mechanism is discussed in detail.
Described supporting mechanism includes: the first square chest the 9, second square chest 8 and third party's case 7.
Described second square chest 8 is fixing with described first square chest 9 to be connected.Specifically, in present embodiment
In, described second square chest 8 is connected, other embodiment party by bolt is fixing with described first square chest 9
In formula, described second square chest 8 can otherwise pivot pin etc. with as described in the first square chest 9 fixing even
Connect.
Described third party's case 7 is fixing with described second square chest 8 to be connected.Specifically, in present embodiment
In, described third party's case 7 is connected, other embodiment party by bolt is fixing with described second square chest 8
In formula, described third party's case 7 can otherwise pivot pin etc. with as described in the second square chest 8 fixing even
Connect.Described third party's case 7 contacts with described first casing 1, is used for supporting described first casing 1.
The height sum of described first square chest the 9, second square chest 8 and third party's case 7 and described first machine
The supporting leg size of shell 1 matches.
The structure of pressure testing mechanism is discussed in detail.
Described pressure testing mechanism includes: point chamber frock flange 3.
Described point of chamber frock flange 3 is fixedly installed in described first casing 1.Specifically, in this reality
Executing in mode, described point of chamber frock flange 3 is bolted and is arranged in described first casing 1,
In other embodiments, described point of chamber frock flange 3 can as fixing in pivot pin etc. otherwise set
Put in described first casing 1.Described first casing 1 is divided into low pressure chamber by described point of chamber frock flange
5 and high pressure chest 6, the weak location of described first casing 1 is in low pressure chamber 5.
Step 8 is discussed in detail.
The difference of described first setting value and described second setting value is at 3-5 kilogram.
Partial compression machine hydraulic test method of the present invention also includes: the first sealing ring and the second sealing ring.
Described first sealing ring is fixedly installed between described tuyere flange and described first casing 1.Tool
Body ground, in the present embodiment, described first sealing ring is bolted and is arranged on described air port method
Between blue and described first casing 1, in other embodiments, described first sealing ring can pass through it
Its mode as described in pivot pin etc. is fixedly installed on tuyere flange and as described between the first casing 1.
Described second sealing ring is fixedly installed between described first casing 1 and described second casing.Tool
Body ground, in the present embodiment, described second sealing ring is bolted and is arranged on described first machine
Between shell 1 and described second casing, in other embodiments, described second sealing ring can pass through it
Its mode as described in pivot pin etc. is fixedly installed on the first casing 1 and as described between the second casing.
Based on identical inventive concept, the present invention also provides for the water of a kind of overweight ultra-large type compressor case
Compression testing device, the centrifugal step of described air compressor includes the first casing 1 and the second casing, described
Offering steam vent and water injection hole in second casing, described assay device includes: supporting mechanism, pressure testing
Mechanism, water flowing mechanism and water feeding machine structure.
Described supporting mechanism contacts with described first casing 1；
Described pressure testing mechanism is arranged in described first casing 1, and described point of chamber frock flange is by described
One casing 1 is divided into low pressure chamber 5 and high pressure chest 6, the weak location of described first casing 1 to be in low pressure
Chamber 5.
Described tuyere flange 2, is connected with described first casing 1, described tuyere flange 2 is provided with
Valve 4.
Described water pump is connected with described low pressure chamber and high pressure chest by described valve 4.
Described Pressure gauge, is arranged in described second casing on the steam vent offered.
The structure of supporting mechanism is discussed in detail.
Described supporting mechanism includes: the first square chest the 9, second square chest 8 and third party's case 7.
Described second square chest 8 is fixing with described first square chest 9 to be connected.Specifically, in present embodiment
In, described second square chest 8 is connected, other embodiment party by bolt is fixing with described first square chest 9
In formula, described second square chest 8 can otherwise pivot pin etc. with as described in the first square chest 9 fixing even
Connect.
Described third party's case 7 is fixing with described second square chest 8 to be connected.Specifically, in present embodiment
In, described third party's case 7 is connected, other embodiment party by bolt is fixing with described second square chest 8
In formula, described third party's case 7 can otherwise pivot pin etc. with as described in the second square chest 8 fixing even
Connect.Described third party's case 7 contacts with described first casing 1, is used for supporting described first casing 1.
The height sum of described first square chest the 9, second square chest 8 and third party's case 7 and described first machine
The supporting leg size of shell 1 matches.
The structure of pressure testing mechanism is discussed in detail.
Described pressure testing mechanism includes: point chamber frock flange 3.
Described point of chamber frock flange 3 is fixedly installed in described first casing 1.Specifically, in this reality
Executing in mode, described point of chamber frock flange 3 is bolted and is arranged in described first casing 1,
In other embodiments, described point of chamber frock flange 3 can as fixing in pivot pin etc. otherwise set
Put in described first casing 1.Described first casing 1 is divided into low pressure chamber by described point of chamber frock flange
5 and high pressure chest 6, the weak location of described first casing 1 is in low pressure chamber 5.
The structure of water flowing mechanism is discussed in detail.
Described Tong Shui mechanism includes tuyere flange 2.
Described tuyere flange 2 is fixing with described first casing 1 to be connected.Specifically, in present embodiment
In, described tuyere flange 2 is connected, other embodiment party by bolt is fixing with described first casing 1
In formula, described tuyere flange 2 is connected by pivot pin is fixing with described first casing 1.Described air port method
It is provided with valve 4 on blue 2.
The structure of water feeding machine structure is discussed in detail.
Described water feeding machine structure includes water pump.
Described water pump is connected with described low pressure chamber and high pressure chest by described valve 4.
Partial compression machine water test unit of the present invention also includes: the first sealing ring and the second sealing ring.
Described first sealing ring is fixedly installed between described tuyere flange and described first casing 1.Tool
Body ground, in the present embodiment, described first sealing ring is bolted and is arranged on described air port method
Between blue and described first casing 1, in other embodiments, described first sealing ring can pass through it
Its mode as described in pivot pin etc. is fixedly installed on tuyere flange and as described between the first casing 1.
Described second sealing ring is fixedly installed between described first casing 1 and described second casing.Tool
Body ground, in the present embodiment, described second sealing ring is bolted and is arranged on described first machine
Between shell 1 and described second casing, in other embodiments, described second sealing ring can pass through it
Its mode as described in pivot pin etc. is fixedly installed on the first casing 1 and as described between the second casing.
The embodiment of the present invention is introduced, below from the using method of the embodiment of the present invention in order to clearer
Introduced.
By the first square chest 9 fixed placement on pressing plate, the most successively by the second square chest 8 and third party's case
7 are placed on the first square chest 9, the first square chest the 9, second square chest 8 and height sum of third party's case 7
Match with the supporting leg size of described first casing 1.First casing 1 is propped up by third party's case 7.The
Tuyere flange 2 upward, is installed at air port in the air port of one casing 1, and the second sealing ring is fixedly installed on
Between described first casing 1 and described second casing, prevent from leaking.Tuyere flange 2 arranges valve
Door 4.Overturning the first casing 1 and make the split of the first casing upward, support first propped up by third party's case
Casing 1.Installing a point chamber frock flange 3 in the first casing 1, point chamber frock flange 3 is by the first casing
1 is divided into low pressure chamber 5 and high pressure chest 6, and the weak location of the first casing is in low pressure chamber 5.Water pump passes through
Valve 4 is filled to split, by the second machine to low pressure chamber 5 and the high pressure chest 6 of the first casing 1
Shell and the first casing 1 connect, and the second sealing ring is fixedly installed between the first casing 1 and the second casing,
Prevent from leaking.Water filling is carried out until water is full, then by water filling port by the water filling port of described second casing
Closure.At steam vent in the second casing, Pressure gauge is set.By water pump high pressure chest 6 suppressed to
After first setting value 3.8 kilograms, low pressure chamber 5 is suppressed to the first setting value 3.8 kilograms, low pressure chamber 5
In 25-35 minute water-tight, pressure does not declines, and described water pump continues to suppress high pressure chest 6 to the
Two setting values 7.8 kilograms, described first setting value be less than described second setting value, the first setting value with
The difference of the second setting value is at 3-5 kilogram.Described valve 4 discharges water, check described first casing 1 and
The deformation of the second casing.
The hydraulic test method of the overweight ultra-large type compressor case that the present invention provides is according to the first casing
Supporting leg size arranges supporting mechanism, and the first casing is propped up by supporting mechanism, the air port of the first casing upward,
Tuyere flange is installed at air port, tuyere flange arranges valve, overturns the first casing and make the first machine
Upward, supporting mechanism supports the first casing to the split of shell, installs pressure testing mechanism in the first casing,
First casing is divided into low pressure chamber and high pressure chest, the weak location of the first casing to be in low pressure by pressure testing mechanism
Chamber, water pump is filled to split by valve to low pressure chamber and the high pressure chest of the first casing, by
Two casing are connected with the first casing, carry out water filling by the water filling port of the second casing until water is full, then
Water filling port is blocked, at the steam vent in the second casing, Pressure gauge is set, by water pump to high pressure chest
Suppressing and suppress low pressure chamber to the first setting value to the first setting value, low pressure chamber is in 25-35 minute
Water-tight, pressure does not declines, and water pump continues to suppress high pressure chest to the second setting value, and valve discharges water,
Check the first casing and the deformation of the second casing, by poor to the design pressure of the first casing both sides,
The pressure testing mechanism utilizing the first casing is separated, and low pressure chamber and high pressure chest to casing both sides are beaten respectively
Different pressure, 40% before making the pressure of the first thin cabinet weak part be reduced to, reduces greatly
The risk of the first casing deformation, the most once completes the water pressure test, cost-effective, time and people
Power.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme
And unrestricted, although the present invention being described in detail with reference to example, the ordinary skill people of this area
Member should be appreciated that and can modify technical scheme or equivalent, without deviating from
The spirit and scope of technical solution of the present invention, it all should be contained in the middle of scope of the presently claimed invention.
Claims (9)
1. a hydraulic test method for overweight ultra-large type compressor case, described air compressor from
Heart section includes the first casing (1) and the second casing, it is characterised in that described test method includes following
Step:
Supporting leg size according to described first casing (1) arranges supporting mechanism, and described supporting mechanism is by institute
State the first casing (1) to prop up；
Overturn described first casing (1) and make the split of described first casing upward, described supporting mechanism
Support described first casing (1)；
Installing pressure testing mechanism in described first casing (1), described pressure testing mechanism is by described first casing
(1) being divided into low pressure chamber (5) and high pressure chest (6), the weak location of described first casing is in described
Low pressure chamber (5)；
Low pressure chamber (5) and the high pressure chest (6) of described first casing (1) are filled to split, will
Described second casing is connected with described first casing (1)；
Carry out water filling by the water filling port of described second casing until water is full, then described water filling port is sealed
Stifled；
Described high pressure chest (6) is suppressed to the first pressure set points described low pressure chamber (5) is suppressed
To the first pressure set points, if described low pressure chamber (5) is water-tight, pressure does not declines, and continues described
High pressure chest (6) is suppressed to the second pressure set points, and described first pressure set points is less than described second pressure
Power setting value；
Described low pressure chamber (5) and high pressure chest (6) are discharged water, checks described first casing (1) and
The deformation of two casing.
Test method the most according to claim 1, it is characterised in that described supporting mechanism includes:
First square chest (9)；
Second square chest (8), is connected with described first square chest (9)；
Third party's case (7), is connected with described second square chest (8), described third party's case (7) and institute
State the first casing (1) contact.
Test method the most according to claim 2, it is characterised in that:
Described first square chest (9), the second square chest (8) and the height sum of third party's case (7) and institute
The supporting leg size stating the first casing (1) matches.
Test method the most according to claim 1, it is characterised in that described pressure testing mechanism includes:
Divide chamber frock flange (3), be arranged in described first casing (1), described point of chamber frock method
Described first casing (1) is divided into low pressure chamber (5) and high pressure chest (6), described first casing (1) by orchid
Weak location be in low pressure chamber (5).
Test method the most according to claim 1, it is characterised in that also include:
Between described tuyere flange and described first casing (1), the first sealing ring is set；
Between described first casing (1) and described second casing, the second sealing ring is set.
6. a water test unit for overweight ultra-large type compressor case, described air compressor from
Heart section includes the first casing (1) and the second casing, and described second casing offers steam vent and water filling
Hole, it is characterised in that described assay device includes:
Supporting mechanism, contacts with described first casing (1)；
Pressure testing mechanism, in being arranged on described first casing (1), described point of chamber frock flange is by described the
One casing (1) is divided into low pressure chamber (5) and high pressure chest (6), the weakness of described first casing (1)
Position is in low pressure chamber (5)；
Water flowing mechanism, is connected with described first casing (1)；
Water feeding machine structure, is connected with described low pressure chamber and high pressure chest by described water flowing mechanism.
Assay device the most according to claim 6, it is characterised in that described supporting mechanism includes:
First square chest (9)；
Second square chest (8), is connected with described first square chest (9)；
Third party's case (7), is connected with described second square chest (8), described third party's case (7) and institute
State the first casing (1) contact；
Described first square chest (9), the second square chest (8) and the height sum of third party's case (7) and institute
The supporting leg size stating the first casing (1) matches.
Assay device the most according to claim 6, it is characterised in that described pressure testing mechanism includes:
Divide chamber frock flange (3), be arranged in described first casing (1), described point of chamber frock method
Described first casing (1) is divided into low pressure chamber (5) and high pressure chest (6) by blue (3), and described first
The weak location of casing (1) is in low pressure chamber (5).
Assay device the most according to claim 6, it is characterised in that also include:
First sealing ring, is arranged between described tuyere flange and described first casing (1)；
Second sealing ring, is arranged between described first casing (1) and described second casing.
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| CN201610285396.8A CN105927573B (en) | 2016-04-29 | 2016-04-29 | The hydraulic test method and device of overweight ultra-large type compressor case |
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| CN201610285396.8A CN105927573B (en) | 2016-04-29 | 2016-04-29 | The hydraulic test method and device of overweight ultra-large type compressor case |
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| CN109596332A (en) * | 2018-12-27 | 2019-04-09 | 重庆跃进机械厂有限公司 | A kind of low speed Oil cylinder high pressure chest pressure experimental device |
| CN110566489A (en) * | 2019-08-26 | 2019-12-13 | 西安陕鼓动力股份有限公司 | Centrifugal compressor shell sectional water pressure test method |
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| CN107153031A (en) * | 2017-06-30 | 2017-09-12 | 沈阳透平机械股份有限公司 | A kind of horizontally split centrifugal compressor casing pressure-bearing testing device, method |
| CN107153031B (en) * | 2017-06-30 | 2020-07-31 | 沈阳透平机械股份有限公司 | Horizontal subdivision centrifugal compressor shell pressure-bearing test device and method |
| CN109596332A (en) * | 2018-12-27 | 2019-04-09 | 重庆跃进机械厂有限公司 | A kind of low speed Oil cylinder high pressure chest pressure experimental device |
| CN109596332B (en) * | 2018-12-27 | 2020-12-04 | 重庆跃进机械厂有限公司 | Low-speed machine oil cylinder high-pressure cavity pressure test device |
| CN110566489A (en) * | 2019-08-26 | 2019-12-13 | 西安陕鼓动力股份有限公司 | Centrifugal compressor shell sectional water pressure test method |
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