CN110031161A - More specification valve pressure testing devices - Google Patents
More specification valve pressure testing devices Download PDFInfo
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- CN110031161A CN110031161A CN201910398823.7A CN201910398823A CN110031161A CN 110031161 A CN110031161 A CN 110031161A CN 201910398823 A CN201910398823 A CN 201910398823A CN 110031161 A CN110031161 A CN 110031161A
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- valve
- pipe
- pressure
- main pipeline
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to technical field of pipeline construction, more particularly to a kind of more specification valve pressure testing devices, including main pipeline, lateral and pressure pump, the lateral includes the different valve installing pipe of multiple calibers, valve installing pipe one end is connected to main pipeline, the other end of valve installing pipe is connected with the flange adaptable with valve installation pipe diameter, shut-off valve and branch pipe pressure monitoring mechanism are also equipped in valve installing pipe, weld plugging plate in the both ends of the main pipeline, main pipeline is equipped with main pipe pressure mechanism for monitoring, main pipeline is connected to by suppress pipe with pressure pump, ball valve is connected in the suppress pipe.Program structure is simple, valves to be detected different to multiple specification different pressure levels simultaneously may be implemented and carry out pressure testing detection, and the pressure testing detection of each valve to be detected can be carried out independently and is mutually independent of each other, and improve valve detection efficiency, have very strong applicability.
Description
Technical field
The present invention relates to technical field of pipeline construction, and in particular to more specification valve pressure testing devices.
Background technique
Leakage occurs after valve installation to cause very big influence to later period production, or even endangers personal safety, therefore valve
The tightness test of door is the preceding important experiment of valve installation, and the valve specification to be applied in practical projects is more, and passes
System suppresses equipment, and structure is complicated, with high costs, and disposably can only carry out pressure testing detection, efficiency to the valve of single specification
Lowly.
To solve the above-mentioned problems, 208012853 U of Chinese utility model patent CN discloses a kind of valve Quick-action pressure-testing
Device and its pressure testing system including spaced one group of main pipeline, the four-way connection being connected between adjacent two main pipeline, connect
Connect four-way connection port tapered pipeline, be connected to the connecting pipe of tapered pipeline port and by pressure pipe and main pipeline
The pressure pump of connection is connected with pressure check device on the main pipeline, is connected with ball valve on the pressure pipe, described in a part
The port of connecting pipe is connected with flange, and the port of connecting pipe described in another part is connected with plugging plate.Although the program solves
It has determined the detection once suppressed by pressure pump and can be completed at the same time multiple more sizes valves to be detected, but due to real engineering
In valve have more specification multi-grades, the working pressure range of the valve of different pressure levels be it is different, in addition, the program
In the detection the medium between each valve to be detected be connection, pressure maintaining detection during, when wherein have one it is to be detected
Valve is unqualified when leaking, and the pressure in entire pipeline will decline, and can not continue to carry out other valves to be detected
Pressure maintaining detection.
Summary of the invention
It to solve the above-mentioned problems, can be primary the purpose of the present invention is to provide a kind of more specification valve pressure testing devices
Property carries out pressure testing detection to it in its working pressure range to the valve of multiple and different pressure ratings and plurality of specifications.
To achieve the goals above, base case provided by the invention is as follows:
More specification valve pressure testing devices, including main pipeline, lateral and pressure pump, the lateral include multiple straight
The different valve installing pipe of diameter, valve installing pipe one end are connected to main pipeline, the other end of valve installing pipe be connected with
Valve installs the flange for being used to connect valve to be detected that pipe diameter is adapted, and is also equipped with shut-off valve and branch in valve installing pipe
Plugging plate is welded at pipe pressure mechanism for monitoring, the both ends of the main pipeline, and main pipeline is equipped with main pipe pressure mechanism for monitoring, main pipeline
It is connected to by suppress pipe with pressure pump, is connected with ball valve in the suppress pipe.
The principle of this base case and the beneficial effect of generation are:
One, the valve to be detected of different size is mounted on it on the flange being adapted to, each valve to be detected is closed, beats
The shut-off valve opened in each valve installing pipe is connected to valve to be detected with main pipeline, the topped up with water into main pipeline, opens suppress pipe
On ball valve, starting pressure pump to main pipeline inside water body pressurize.
Two, when the pressure rating of each valve to be detected is identical, operation pressure pump suppresses until in main pipeline main pipeline
Pressure reach specified value, at this moment close the shut-off valve in each valve installing pipe, make each valve independence pressure maintaining to be detected detection, when
When wherein thering is the unqualified generation of any valve to be detected to reveal, at the valve to be detected and other valves to be detected of this leakage
In state of isolation, thus the leakage of any valve to be detected will not the detection pressure to other valves to be detected impact, this
When can also unload underproof valve to be detected, re-replace the valve to be detected of same specification, detection is suppressed in restarting
Process individually detects this valve to be detected, and without waiting for other side valves to be checked on entire more specification valve pressure testing devices
Door detection is finished again while being detected, and has been saved the time, has been improved detection efficiency.
Three, when the pressure rating of each valve is not identical, operation pressure pump suppresses the pressure in main pipeline to main pipeline
When reaching the specified value of a certain valve to be detected, the shut-off valve in the valve installing pipe where this valve to be detected is closed, this is made
Valve to be detected and main pipeline isolation carry out independent pressure maintaining detection, continue to run pressure pump, reach respectively to the pressure in main pipeline
To when detecting pressure as defined in each valve to be detected, the shut-off valve closed in corresponding valve installing pipe carries out independent pressure maintaining inspection
It surveys.It in this way can be by being examined simultaneously on a set of pressure testing device to the valve to be detected of multiple pressure ratings and plurality of specifications
It surveys, and the testing result of each valve to be detected will not have an impact the detection of other valves to be detected, there is higher be applicable in
Property, improve detection efficiency.
Further, the main pipe pressure mechanism for monitoring includes principal pressure pipe and main pipe pressure table, principal pressure pipe one end and master
Pipeline connection, the principal pressure pipe other end is connected to main pipe pressure table, the branch pipe pressure detection mechanism include branch pipe pressure pipe with
Branch hook gauge, branch pipe pressure pipe one end are connected to valve installing pipe, and the branch pipe pressure pipe other end is connected to branch hook gauge.
Main pipe pressure table is set and branch hook gauge can intuitively monitor pressure shape in main pipeline and valve installing pipe
Condition, convenient for judging whether the quality of valve to be detected is qualified when carrying out pressure maintaining detection to each valve to be detected.
Further, the flange and valve installing pipe are welded to connect, and valve installing pipe and main pipeline are welded to connect.
Since the mode of welded connecting has the characteristics that intensity is high, good airproof performance, by welding come make flange and
Valve installing pipe is fixedly connected, and advantageously ensures that the intensity and leakproofness of connection.
Further, pressure pump is connected to by the plugging plate that the suppress pipe passes through main pipeline one end with main pipeline.
Further, the exhaust pipe being connected to main pipeline is equipped with above the main pipeline, the exhaust pipe is equipped with exhaust valve.
Exhaust valve is arranged above main pipeline to be used to for the air in main pipeline being discharged, prevents in main pipeline with the presence of air
Effect is suppressed in influence, while water can be filled into main pipeline by exhaust pipe, facilitates operation.
Further, the drainpipe being connected to main pipeline is equipped with below the main pipeline, the drainpipe is equipped with drain valve.
Below main pipeline be arranged drainpipe can in the medium for needing replacing detection by main pipeline water body or its
He is discharged medium.
Further, bracket is set below the main pipeline, and main pipeline is fixedly connected with bracket.
The bracket being fixedly connected with main pipeline is equipped with below main pipeline both ends, so that main pipeline has certain height from the ground
Degree facilitates operator to carry out relevant operation to device.
Further, header tank is set below the flange, and the drainpipe is connected to header tank, and the pressure pump passes through
Hose is connected to header tank.The water body discharged after header tank is arranged to each detection is collected, and can be used to being suppressed
Pump, which provides, to be beaten hydraulic water or fills the water for main pipeline next time, and water resource is recycled.
Detailed description of the invention
Fig. 1 is the main view of the more specification valve pressure testing devices of the present invention.
Fig. 2 is the top view of the more specification valve pressure testing devices of the present invention.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: main pipeline 1, principal pressure pipe 11, main pipe pressure table 12, valve installing pipe
2, flange 21, shut-off valve 22, branch hook gauge 23, branch pipe pressure pipe 24, pressure pump 3, suppress pipe 31, ball valve 32, hose 33, row
Tracheae 4, exhaust valve 41, bracket 5, header tank 6, drainpipe 7, drain valve 71.
As shown in Figure 1 and Figure 2, more specification valve pressure testing devices, including main pipeline 1, lateral and pressure pump 3,
Main pipeline 1 is made of DN300 steel pipe, the both ends steel plate welded closure of main pipeline 1, and the steel plate of 1 one end of main pipeline is equipped with logical
Hole.The principal pressure pipe 11 being connected to main pipeline 1 is welded with above main pipeline 1, principal pressure pipe 11 is made of DN25 steel pipe, principal pressure
The other end of pipe 11 is connected with main pipe pressure table 12, and main pipe pressure table 12 is used to monitor the pressure state in main pipeline 1, main pipeline
1 top is also welded with the exhaust pipe 4 being connected to main pipeline 1, and exhaust pipe 4 is equipped with exhaust valve 41, and exhaust pipe 4 will be for that will be responsible for
Air discharge in road 1 prevents from influencing to suppress effect with the presence of air in main pipeline 1, while can be by exhaust pipe 4 to supervisor
Water is filled in road 1, facilitates operation, the drainpipe 7 being connected to main pipeline 1 is welded with below main pipeline 1, and drainpipe 7 is equipped with row
Water valve 71, below main pipeline 1 be arranged drainpipe 7 can in the medium for needing replacing detection by main pipeline 1 water body or
Other media are discharged in time.The bracket 5 that is fixedly connected with main pipeline 1 is equipped with below 1 both ends of main pipeline so that main pipeline 1 from
There is certain height on ground, convenient to carry out relevant operation to device.
Pressure pump 3 is set on the outside of 1 one end of main pipeline, and pressure pump 3 is connected to by suppress pipe 31 with main pipeline 1, suppress pipe
31 are made of DN25 steel pipe, and 31 one end of suppress pipe is connected to pressure pump 3, and the other end of suppress pipe 31 passes through 1 one end of main pipeline
Through-hole on steel plate is connected to main pipeline 1 and welds on the steel plate, and suppress pipe 31 is equipped with ball valve 32, suppresses when opening ball valve 32
Pump 3 can by pressure pipe to carried out in main pipeline 1 plus water suppress, at the end of suppressing close ball valve 32 allow main pipeline 1 to be protected
Pressure detection.
Lateral includes the different valve installing pipe 2 of 10 calibers, specially 2 DN250 steel pipes, 2 DN200 steel
Pipe, 2 DN150 steel pipes, 2 DN100 steel pipes and 2 DN50 steel pipes, one end of valve installing pipe 2 are connected to and weld with main pipeline 1
It connects on main pipeline 1, the other end of valve installing pipe 2 is welded with to be used to connect side valve to be checked with what valve installing pipe 2 was adapted
The flange 21 of door is also equipped with shut-off valve 22 compatible with each valve installing pipe 2 in valve installing pipe 2, when closing each valve
When shut-off valve 22 in installing pipe 2, each valve installing pipe 2 can be made to form independent detection unit, welded in each valve installing pipe 2
It is connected to the branch pipe pressure pipe 24 being connected to each valve installing pipe 2, the other end of branch pipe pressure pipe 24 is connected with branch hook gauge 23,
Branch hook gauge 23 is used to monitor the pressure in each valve installing pipe 2, and valve installation can be monitored according to branch hook gauge 23
Whether in the reasonable scope decline of pressure in pipe 2, and then judges whether corresponding valve to be detected is qualified.Under flange 21
Side is equipped with header tank 6, and drainpipe 7 is connected to header tank 6, and pressure pump 3 is connected to by hose 33 with header tank 6, and header tank 6 is arranged
The water body discharged after to each detection is collected, and can be used to beat hydraulic water to the offer of pressure pump 3 or for next
It is secondary that main pipeline 1 is filled the water, play the purpose for recycling water resource.
The working process and principle of the more specification valve pressure testing devices of the present invention are as follows:
Each valve to be detected is mounted on corresponding flange 21, each valve to be detected is closed, closes 32 He of ball valve
Drain valve 71 opens the shut-off valve 22 in each valve installing pipe 2, opens exhaust valve 41, is added by exhaust pipe 4 into main pipeline 1
Water filling makes water body fill the internal cavities of entire more specification valve pressure testing devices, opens ball valve 32, runs 3 couples of pressure pump supervisors
Road 1 is suppressed, and with the progress suppressed, water body is pressed into the gas that squeezes in main pipeline 1 and may infiltrate in main pipeline 1 by pressure pump 3,
It allows gas to be discharged by exhaust pipe 4, the exhaust valve 41 on exhaust pipe 4 is closed after gas is all discharged, it is right to continue to run pressure pump 3
Main pipeline 1, which is suppressed, increases the hydraulic pressure in main pipeline 1 and each valve installing pipe 2.
When the pressure rating for the valve to be detected being mounted on each flange 21 is identical, operation pressure pump 3 breaks main pipeline
The pressure being pressed onto main pipeline 1 reaches the specified value of the pressure rating of valve to be detected, at this moment closes ball valve 32 and each valve peace
Shut-off valve 22 in tubulature 2, pressure pump 3 out of service make each valve independence pressure maintaining detection to be detected, any to be checked when wherein having
When the unqualified generation of side valve door is revealed, since valve to be detected of this leakage and other valves to be detected are in partition state, because
This any valve to be detected leakage will not the detection pressure to other valves to be detected impact, at this moment can also unload not
Qualified valve, re-replaces the valve to be detected of same specification, and restarting suppresses testing process individually to this side valve to be checked
Door is detected, and is finished again while being carried out without waiting for other valve detections to be detected on entire more specification valve pressure testing devices
Detection, has saved the time, has improved detection efficiency.
When the pressure rating for each valve to be detected being mounted on flange 21 is not identical, pressure pump 3 is run to main pipeline
It is suppressed, when the pressure in main pipeline 1 reaches the specified value of the pressure rating of a certain valve to be detected, closes this side valve to be checked
The shut-off valve 22 in valve installing pipe 2 where door completely cuts off this valve to be detected and main pipeline 1 and carries out independent pressure maintaining detection,
Pressure pump 3 is continued to run, successively respectively reaches detection as defined in the pressure rating of each valve to be detected to the pressure in main pipeline 1
When pressure value, the shut-off valve 22 closed in corresponding valve installing pipe 2 makes the valve to be detected carry out independent pressure maintaining detection.In this way
It by the valve to be detected on a set of valve pressure testing device to multiple pressure ratings and plurality of specifications while can detect,
And the testing result of each valve to be detected will not have an impact other valves to be detected, have higher applicability, improve
Detection efficiency.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (8)
1. more specification valve pressure testing devices, including main pipeline, lateral and pressure pump, it is characterised in that: the lateral
Comprising the different valve installing pipe of multiple calibers, valve installing pipe one end is connected to main pipeline, valve installing pipe it is another
End is connected with the flange for being used to connect valve to be detected being adapted with valve installing pipe, is also equipped with cut-off in valve installing pipe
Plugging plate is welded at valve and branch pipe pressure monitoring mechanism, the both ends of the main pipeline, and main pipeline is equipped with main pipe pressure mechanism for monitoring,
Main pipeline is connected to by suppress pipe with pressure pump, is connected with ball valve in the suppress pipe.
2. more specification valve pressure testing devices according to claim 1, it is characterised in that: the main pipe pressure mechanism for monitoring packet
Principal pressure pipe and main pipe pressure table are included, principal pressure pipe one end is connected to main pipeline, and the principal pressure pipe other end and main pipe pressure table connect
Logical, the branch pipe pressure monitoring mechanism includes branch pipe pressure pipe and branch hook gauge, branch pipe pressure pipe one end and valve installing pipe
Connection, the branch pipe pressure pipe other end are connected to branch hook gauge.
3. more specification valve pressure testing devices according to claim 2, it is characterised in that: the flange and valve installing pipe are logical
Cross welded connecting.
4. more specification valve monitoring devices according to claim 1, it is characterised in that: the suppress pipe passes through main pipeline one
Pressure pump is connected to by the plugging plate at end with main pipeline.
5. more specification valve pressure testing devices according to claim 1, it is characterised in that: be equipped with and master above the main pipeline
The exhaust pipe of pipeline connection, the exhaust pipe are equipped with exhaust valve.
6. more specification valve pressure testing devices according to claim 1, it is characterised in that: be equipped with and master below the main pipeline
The drainpipe of pipeline connection, the drainpipe are equipped with drain valve.
7. more specification valve pressure testing devices according to claim 3, it is characterised in that: branch is arranged below the main pipeline
Frame, main pipeline are fixedly connected with bracket.
8. more specification valve pressure testing devices according to claim 6, it is characterised in that: be arranged below the flange and catchment
Case, the drainpipe are connected to header tank, and the pressure pump is connected to by hose with header tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398823.7A CN110031161A (en) | 2019-05-14 | 2019-05-14 | More specification valve pressure testing devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398823.7A CN110031161A (en) | 2019-05-14 | 2019-05-14 | More specification valve pressure testing devices |
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| CN110031161A true CN110031161A (en) | 2019-07-19 |
Family
ID=67242065
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| CN201910398823.7A Pending CN110031161A (en) | 2019-05-14 | 2019-05-14 | More specification valve pressure testing devices |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618046A (en) * | 2019-10-24 | 2019-12-27 | 华东理工大学 | High-temperature in-situ fretting fatigue experiment system |
| CN111624111A (en) * | 2020-07-03 | 2020-09-04 | 中国建筑第四工程局有限公司 | Multi-caliber pipeline and valve synchronous pressure testing device |
| CN112985803A (en) * | 2021-03-30 | 2021-06-18 | 徐工消防安全装备有限公司 | Fire fighting truck valve detection device and method thereof |
| CN114252212A (en) * | 2021-12-13 | 2022-03-29 | 中国化学工程第十一建设有限公司 | Valve pressure testing device |
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| CN110618046A (en) * | 2019-10-24 | 2019-12-27 | 华东理工大学 | High-temperature in-situ fretting fatigue experiment system |
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| CN111624111A (en) * | 2020-07-03 | 2020-09-04 | 中国建筑第四工程局有限公司 | Multi-caliber pipeline and valve synchronous pressure testing device |
| CN112985803A (en) * | 2021-03-30 | 2021-06-18 | 徐工消防安全装备有限公司 | Fire fighting truck valve detection device and method thereof |
| CN114252212A (en) * | 2021-12-13 | 2022-03-29 | 中国化学工程第十一建设有限公司 | Valve pressure testing device |
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