CN103954411A - Water pressure detecting device and method in drainage pipe - Google Patents
Water pressure detecting device and method in drainage pipe Download PDFInfo
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- CN103954411A CN103954411A CN201410204334.0A CN201410204334A CN103954411A CN 103954411 A CN103954411 A CN 103954411A CN 201410204334 A CN201410204334 A CN 201410204334A CN 103954411 A CN103954411 A CN 103954411A
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Abstract
A water pressure detecting device in a drainage pipe comprises a base, plugging plates at the two ends of the base and a plurality of connecting rods connected with the two plugging plates. The opposite inner sides of the two plugging plates are provided with sealing pads used for plugging a pipe opening of the drainage pipe to be detected. Two guide rails are arranged on the base in parallel, the bottom of one plugging plate of the two plugging plates is fixedly provided with a sliding block which slides on the guide rails to enable the plugging plate to be a movable plugging plate, and the other plugging plate is a fixed plugging plate fixed on the base. A supporting table used for supporting the drainage pipe to be detected is arranged between the fixed plugging plate and the movable plugging plate, and meanwhile the base is provided with a driving mechanism which can drive the movable plugging plate to move along the guide rails. The end of an exhaust pipe is communicated with a hollow buoyancy ball which can float on a water surface, and an exhaust hole communicated with the inside of the drainage pipe to be detected is formed in the top of the buoyancy ball. The invention further discloses a detecting method using the water pressure detecting device in the drainage pipe. The water pressure detecting device in the drainage pipe can be used for detecting drainage pipes of various specifications and is high in universality, the detecting method is convenient and easy to implement, and the detecting result is more accurate.
Description
Technical field
The present invention relates to municipal works pipeline construction field, relate in particular to device for detecting water pressure and detection method in drainpipe.
Background technology
Drainpipe is mainly born the draining tasks such as rainwater, sewage, farmland discharging-irrigating, and whether by, configuration reinforcement skeleton is divided into two kinds of concrete pipe and reinforced concrete pipes, and it is the important indicator during drainpipe capability and performance detects that external pressure load and internal water pressure detect.Drainpipe, in the time carrying out internal water pressure detection, allowed damp sheet, but the area of damp sheet must not be greater than 5% of total external surface area under the inspection internal water pressure of regulation, and must not have globule trickling.Conventional interior hydrostatic testing machine is divided into horizontal and vertical two kinds at present, wherein horizontal interior hydrostatic testing machine comprises the closure plate at two ends and is connected to the pull bar between closure plate, drainpipe to be tested is placed between two closure plates, wherein the arranged outside of a closure plate has the water inlet pipe being communicated with drainpipe to be measured, on this water inlet pipe, be provided with the tensimeter for measuring internal water pressure and be used for controlling the valve of water inlet pipe, on another closure plate, be provided with the gas outlet for gas in vent pipe.At present, the Concrete and reinforced concrete drainage and sewer pipes that manufacturing enterprise produces has multiple different model and different size, and existing horizontal interior hydrostatic testing machine generally can only be tested several models or specification drainpipe, and versatility is not good.And, when in use procedure, need to adjust between closure plate spacing time, need manually to promote to adjust, effort, and need after adjusting to reexamine whether the closure plate at testing machine two ends parallel, whether its center line overlaps, operation is trouble.
As disclosed a kind of device and method of operating thereof in the application publication number Chinese invention patent " non-metal pipeline hydraulic pressure seepage verifying attachment " that is CN102426084A, this device comprises rectangular frame body, bellmouth plug, pipeline hoop, water filling pressure measuring system on lifting jack and bell and spigot plug, wherein rectangular frame body is welded to form a rectangle by channel-section steel, rectangular length is determined according to the length in a pipe joint road, and the rectangular wide maximum gauge according to tested pipeline is determined, distance in visible this device between bellmouth plug can not change with the concrete length of drainpipe to be measured, and the pipeline hoop height that is used for supporting drainpipe is fixed, can not change with the concrete height of drainpipe to be measured, therefore this device can only be used for detecting the drainpipe of certain specification, versatility is poor.
Summary of the invention
First technical matters to be solved by this invention is to provide device for detecting water pressure in the drainpipe that a kind of versatility is good and simple, convenient for prior art.
Second technical matters to be solved by this invention is to provide a kind of detection method that uses said apparatus can facilitate, detect simply draining inner pipe water pressure.
The present invention solves the technical scheme that first technical matters adopts: device for detecting water pressure in a kind of drainpipe, comprise base, stand upright on respectively the closure plate at these base two ends and connect multiple connecting rods of two closure plates, on described closure plate, be equipped with to the water inlet pipe of drainpipe water inlet to be measured and by the gas outlet of gas discharge in drainpipe to be measured, the tensimeter and one that is provided with test draining inner pipe water pressure to be measured on described water inlet pipe is used for controlling the first operation valve of this water inlet pipe, on described gas outlet, be equipped with the second operation valve, it is characterized in that: the relative inner of described two closure plates is provided with the sealing gasket for the shutoff drainpipe mouth of pipe to be measured, two guide rails be arranged in parallel on described base, one of them closure plate bottom in described two closure plates is fixed with the slide block sliding on guide rail and makes this closure plate become mobile closure plate, another closure plate is the fixing closure plate that is fixed on base, and a brace table that is used for supporting drainpipe to be measured is set between described fixing closure plate and mobile closure plate, on described base, be provided with the driving mechanism that can drive described mobile closure plate to move along described guide rail simultaneously, and the end of described gas outlet is communicated with the hollow buoyant spheres that can bubble through the water column, the vent port in connection drainpipe to be measured is offered at the top of this buoyant spheres.
For drainpipe to be measured can be clamped between above-mentioned two closure plates securely, prevent displacement in test process and affect experimental result, serve as reasons at least one pedestal and be superimposed upon supporting seat on this pedestal composition of described brace table, on described supporting seat, have the V font groove being located for drainpipe to be measured, utilize and increase or subtract pedestal, regulate easily the height of drainpipe to be measured.
Further, described base bottom is provided with two U-shaped channel-section steels that tip upside down on corresponding described guide rail, in each described U-shaped channel-section steel, be provided with the roller of at least two rollings on described guide rail, can make like this brace table horizontally slip on guide rail according to drainpipe length to be measured, make drainpipe to be measured be placed on position the most stably, thereby make two closure plates can be used to clamp the drainpipe of different lengths specification.
Further again, described brace table is one to be driven and the lifting table that can move up and down by elevating mechanism, brace table can be adjusted up and down according to the internal diameter of drainpipe to be measured like this, this device makes the complete shutoff of the sealing gasket drainpipe to be measured two ends mouth of pipe, so that can be used for testing the drainpipe of multiple internal diameter specification.
Described elevating mechanism can have multiple implementation, as lifting jack, and and for example cylinder or hydraulic cylinder, in the time that described elevating mechanism is cylinder or hydraulic cylinder, described lifting table is fixed on the piston rod of described cylinder or hydraulic cylinder.
Above-mentioned driving mechanism also can have multiple implementation, as preferably, described driving mechanism comprises motor and is supported on the screw mandrel on described base and is threaded in the nut on screw mandrel, described nut is fixed on the bottom of described mobile closure plate, and the output shaft of described screw mandrel and described motor is connected.
For convenience of move, fix described mobile closure plate according to drainpipe length to be measured, the two ends of described each connecting rod are shaped with external thread, and each connection is propped up connecting rod by multistage and is threaded and is formed by swivel nut head and the tail successively, can dismantle as required or install like this connecting rod, can obtain easily the connecting rod matching with drainpipe length to be measured, and in the time being fastenedly connected, be threaded in the clamp nut of interlinking lever end without rotation many times, just can complete fastening work, thereby can increase work efficiency.
For making the simple and handled easily of this apparatus structure, described water inlet pipe and gas outlet all run through and are arranged on described fixing closure plate.
For fixing better mobile closure plate, make this pick-up unit one-piece construction more firm, described connecting rod is 8, is evenly connected to the surrounding of described two closure plates.
The present invention comprises following detecting step for the technical scheme adopting of solution the second technical matters:
1. gas outlet to be measured is placed on brace table, by driving mechanism, mobile closure plate is slided along guide rail, until the sealing gasket on two closure plates seals up the mouth of pipe of drainpipe to be measured completely;
2. then will fix closure plate and mobile closure plate with many connecting rods and be connected and fixed integrally, drainpipe to be measured is sandwiched in tightly and is fixed between closure plate and the sealing gasket of mobile closure plate;
3. then open the first operation valve, water is in water inlet pipe enters into drainpipe to be measured, and the gas in drainpipe to be measured is discharged through hollow buoyant spheres, gas outlet simultaneously;
4. in the time discharging water in gas outlet, close the second operation valve;
5. then continue to input water in drainpipe to be measured, until pressure in tensimeter is closed the first operation valve while arriving setting value;
6. pressurize, to official hour, is write inspection for leakage record;
7. finally open the second, first operation valve, utilize water inlet pipe that the water in drainpipe to be measured is drained;
8. remove connecting rod, start driving mechanism, until the sealing gasket on mobile closure plate leaves drainpipe to be measured.
Compared with prior art, the invention has the advantages that: mobile closure plate can slide along the guide rail on base under driving mechanism drives, and makes this device can be used to test the drainpipe of different lengths specification, has improved the versatility of this device, and simple to operate light; The vent design of hollow buoyant spheres makes the exhausr port of drainpipe without the top of being fixed on gas outlet to be measured, making the drainpipe of different inner diameters specification all can be positioned over this device tests, further improve its versatility, and make the more convenient to operate of this device, also make to adopt the detection method of this device simple and convenient simultaneously, easy to operate, testing result is accurate.
Brief description of the drawings
Fig. 1 is the interior device for detecting water pressure perspective view of drainpipe in the present invention;
Fig. 2 is the interior device for detecting water pressure other direction perspective view of drainpipe in the present invention;
Fig. 3 is along A-A direction cut-open view in Fig. 2;
Fig. 4 is the interior device for detecting water pressure perspective view of drainpipe that is placed with drainpipe to be measured in the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Fig. 1～4, device for detecting water pressure in a kind of drainpipe, comprise base 1, stand upright on respectively the closure plate at these base 1 two ends and connect multiple connecting rods 5 of two closure plates, wherein, base 1 is square structure, on base 1, be arranged with two guide rail 11, two guide rail 11 inner sides in parallel and be evenly provided with two connecting rods 5, one of them closure plate bottom in two closure plates is fixed with the slide block 12 sliding on guide rail 11 and makes this closure plate become mobile closure plate 3, another closure plate is the fixing closure plate 2 that is fixed on base 1, and the relative inner of fixing closure plate 2, mobile closure plate 3 is provided with the sealing gasket 6 for the shutoff drainpipe B to be measured mouth of pipe, above-mentioned fixing closure plate 2 in the present embodiment, mobile closure plate 3 is eight-sided formation, and above-mentioned connecting rod 5 is 8, each connecting rod 5 two ends are connected to fixing closure plate 2, on mobile closure plate 3, and 8 connecting rods 5 are evenly connected to the surrounding of two closure plates, make fixing closure plate 2 be connected and fixed and be integrated with mobile closure plate 3, tightly clamp drainpipe B to be measured, and the two ends of the each connecting rod 5 in the present embodiment are shaped with external thread 51, each connecting rod 5 props up connecting rod by multistage and is threaded and is formed by swivel nut 52 head and the tail successively, thereby when detecting the drainpipe B to be measured of shorter length, prop up connecting rod by minimizing, to avoid in mobile closure plate 3 adjustment processes, the clamp nut of end need move along connecting rod 5 problem of longer distance, facilitate operation.
On fixing closure plate 2, be equipped with to the water inlet pipe 9 of drainpipe B water inlet to be measured and by the gas outlet 8 of gas discharge in drainpipe B to be measured, the tensimeter 10 and one that is provided with hydraulic pressure in test drainpipe B to be measured on water inlet pipe 9 is used for controlling the first operation valve 91 of this water inlet pipe 9, on gas outlet 8, be equipped with the second operation valve 81, so that gas when emptying in drainpipe B to be measured, close gas outlet 9 and prevent from managing interior tap water and reveal.In existing pick-up unit, one end mouth of pipe of gas outlet is placed in drainpipe to be measured, in testing process, this mouth of pipe needs the spacing top at drainpipe, make inconvenient operation, and be limited in the drainpipe of certain altitude, limit the sensing range of pick-up unit, therefore in the present embodiment, the end of gas outlet 8 is communicated with the hollow buoyant spheres 82 that can bubble through the water column, the vent port 821 in connection gas outlet 8 to be measured is offered at the top of this buoyant spheres 82, like this without the end top set of gas outlet 8 is got final product to light exhaust.
On base 1, be provided with the driving mechanism 13 that can drive mobile closure plate 3 to move along guide rail 11, driving mechanism 13 comprises motor 131 and is supported on the screw mandrel 132 on base 1 and is threaded in the nut (not shown) on screw mandrel 132, nut is fixed on the bottom of mobile closure plate 3, and screw mandrel 132 is connected with the output shaft of motor 131.
Between fixing closure plate 2 and mobile closure plate 1, be provided with the brace table 4 for supporting drainpipe to be measured, in the present embodiment, brace table 4 is made up of a pedestal 42 and the supporting seat 41 being superimposed upon on this pedestal 42, and on this supporting seat 41, has the V font groove 441 being located for drainpipe B to be measured.For this brace table 41 can be moved around on guide rail 11, to adapt to detect the needs of different length drainpipe, pedestal 42 bottoms are provided with two U-shaped channel-section steels 43 that tip upside down on corresponding guide rail 11, in each U-shaped channel-section steel 43, be provided with the roller 431 of two rollings on guide rail 11, before detecting like this, need to promote this brace table 4 according to drainpipe B length to be measured, roller 431 is rolled on guide rail 11, thereby brace table 11 is adjusted to suitable position.For further adapting to the drainpipe B needs to be measured of differing heights, this brace table 4 is a lifting table, and this lifting table can move up and down under elevating mechanism drives, thereby drainpipe B is adjusted to suitable height.Driving mechanism can have multiple implementation, and in the present embodiment, elevating mechanism comprises two lifting jack that are set up in parallel 421.
Use pick-up unit described above to detect the detection method of draining inner pipe water pressure, the method is specific as follows:
As shown in Figure 4, first drainpipe B to be measured is placed on brace table 4, and one end of drainpipe B is withstood on fixing closure plate 2, adjust the lifting jack 421 on brace table 4, make the mouth of pipe of the sealing gasket 6 complete shutoff drainpipe B on fixing closure plate 2.Starter motor 131, drives screw mandrel 132 to rotate, so that mobile closure plate 3 is to fixing closure plate 2 side shiftings, until the also mouth of pipe of complete shutoff drainpipe B of the sealing gasket 6 on mobile closure plate 3.
8 connecting rods 5 are then installed successively, and are screwed in a clamp nut on the external thread of the end of each connecting rod 5, and screw, drainpipe B to be measured is held between fixing closure plate 2 and the sealing gasket 6 of mobile closure plate 3 tightly.
After drainpipe B to be measured lays, open the first operation valve 91, the water inlet pipe 9 that connects running water pipe starts water inlet (also can pass through water feeding of water pump), current enter into drainpipe B to be measured along water inlet pipe 9, and the gas vent port 821 in hollow buoyant spheres 82 under Water Pressure in drainpipe B to be measured is discharged along gas outlet 8 simultaneously.Hollow buoyant spheres 82 slowly floats under water buoyancy, and in the time that in drainpipe B, gas drains, the vent port 821 of current in hollow buoyant spheres 82 discharged along gas outlet 8, now closes the second operation valve 81.Then continue to input water in drainpipe B to be measured, until pressure in tensimeter 10 is closed the first operation valve 91 while arriving setting value, pressurize, to official hour, is write inspection for leakage record.
Finally open the second, first operation valve 81,91, reverse starting water pump, utilize water inlet pipe 9 that the water in drainpipe B to be measured is drained, remove connecting rod 5, start driving mechanism 13, until the sealing gasket 6 on mobile closure plate 3 leaves drainpipe B to be measured, drainpipe B to be measured is taken off from brace table 4.
Claims (10)
1. device for detecting water pressure in a drainpipe, comprise base, stand upright on respectively the closure plate at these base two ends and connect multiple connecting rods of two closure plates, on described closure plate, be equipped with to the water inlet pipe of drainpipe water inlet to be measured and by the gas outlet of gas discharge in drainpipe to be measured, the tensimeter and one that is provided with test draining inner pipe water pressure to be measured on described water inlet pipe is used for controlling the first operation valve of this water inlet pipe, on described gas outlet, be equipped with the second operation valve, it is characterized in that: the relative inner of described two closure plates is provided with the sealing gasket for the shutoff drainpipe mouth of pipe to be measured, two guide rails be arranged in parallel on described base, one of them closure plate bottom in described two closure plates is fixed with the slide block sliding on described guide rail and makes this closure plate become mobile closure plate, another closure plate is the fixing closure plate that is fixed on base, and a brace table that is used for supporting drainpipe to be measured is set between described fixing closure plate and mobile closure plate, on described base, be provided with the driving mechanism that can drive described mobile closure plate to move along described guide rail simultaneously, and the end of described gas outlet is communicated with the hollow buoyant spheres that can bubble through the water column, the vent port in connection drainpipe to be measured is offered at the top of this buoyant spheres.
2. device for detecting water pressure in drainpipe as claimed in claim 1, is characterized in that: serve as reasons at least one pedestal and be superimposed upon the supporting seat composition on this pedestal of described brace table, has the V font groove being located for drainpipe to be measured on described supporting seat.
3. device for detecting water pressure in drainpipe as claimed in claim 2, is characterized in that: described base bottom is provided with two U-shaped channel-section steels that tip upside down on corresponding described guide rail, in each described U-shaped channel-section steel, is provided with the roller of at least two rollings on described guide rail.
4. device for detecting water pressure in drainpipe as claimed in claim 1, is characterized in that: described brace table is one to be driven and the lifting table that can move up and down by elevating mechanism.
5. device for detecting water pressure in drainpipe as claimed in claim 4, is characterized in that: described elevating mechanism is a lifting jack; Or described elevating mechanism is cylinder or hydraulic cylinder, described lifting table is fixed on the piston rod of described cylinder or hydraulic cylinder.
6. device for detecting water pressure in the drainpipe as described in claim as arbitrary in claim 1～5, it is characterized in that: described driving mechanism comprises motor and is supported on the screw mandrel on described base and is threaded in the nut on screw mandrel, described nut is fixed on the bottom of described mobile closure plate, and the output shaft of described screw mandrel and described motor is connected.
7. device for detecting water pressure in drainpipe as claimed in claim 6, is characterized in that: the two ends of described each connecting rod are shaped with external thread, and each connection props up connecting rod by multistage and be threaded and formed by swivel nut head and the tail successively.
8. device for detecting water pressure in drainpipe as claimed in claim 6, is characterized in that: described water inlet pipe and gas outlet all run through and be arranged on described fixing closure plate.
9. device for detecting water pressure in drainpipe as claimed in claim 6, is characterized in that: described connecting rod is 8, is evenly connected to the surrounding of described two closure plates.
10. by a detection method for device for detecting water pressure in drainpipe claimed in claim 1, it is characterized in that:
1. gas outlet to be measured is placed on brace table, by driving mechanism, mobile closure plate is slided along guide rail, until the sealing gasket on two closure plates seals up the mouth of pipe of drainpipe to be measured completely;
2. then will fix closure plate and mobile closure plate with many connecting rods and be connected and fixed integrally, drainpipe to be measured is sandwiched in tightly and is fixed between closure plate and the sealing gasket of mobile closure plate;
3. then open the first operation valve, water is in water inlet pipe enters into drainpipe to be measured, and the gas in drainpipe to be measured is discharged through hollow buoyant spheres, gas outlet simultaneously;
4. in the time discharging water in gas outlet, close the second operation valve;
5. then continue to input water in drainpipe to be measured, until pressure in tensimeter is closed the first operation valve while arriving setting value;
6. pressurize, to official hour, is write inspection for leakage record;
7. finally open the second, first operation valve, utilize water inlet pipe that the water in drainpipe to be measured is drained;
8. remove connecting rod, start driving mechanism, until the sealing gasket on mobile closure plate leaves drainpipe to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204334.0A CN103954411A (en) | 2014-05-14 | 2014-05-14 | Water pressure detecting device and method in drainage pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204334.0A CN103954411A (en) | 2014-05-14 | 2014-05-14 | Water pressure detecting device and method in drainage pipe |
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| CN103954411A true CN103954411A (en) | 2014-07-30 |
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| CN201410204334.0A Pending CN103954411A (en) | 2014-05-14 | 2014-05-14 | Water pressure detecting device and method in drainage pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105300805A (en) * | 2015-11-26 | 2016-02-03 | 斯耐特(湖北)工业制造有限公司 | Ultrahigh hydraulic test table for valves |
| CN105372015A (en) * | 2015-12-16 | 2016-03-02 | 芜湖杰诺科技有限公司 | Ridge type valve airtight testing device |
| CN106197893A (en) * | 2016-08-22 | 2016-12-07 | 昆山杰士德精密工业有限公司 | Mobile phone sealing ring air tightness detection equipment |
| CN107727320A (en) * | 2017-10-27 | 2018-02-23 | 芜湖鸣人热能设备有限公司 | Heat energy pipe air-tightness detection device |
| CN108195527A (en) * | 2018-01-02 | 2018-06-22 | 浙江大学 | Used in nuclear power station high density polyethylene pipe tightness is tested and evaluation method |
| CN108507728A (en) * | 2018-06-05 | 2018-09-07 | 陕西博菲特流体控制装备制造有限公司 | A kind of modular heat trace integrated station suppresses test device |
| CN108645581A (en) * | 2018-05-08 | 2018-10-12 | 西南交通大学 | A kind of dynamic stiffness test experiments equipment |
| CN108663264A (en) * | 2018-06-25 | 2018-10-16 | 郑州市第建筑工程集团有限公司 | Pipe of concrete internal water pressure detection device |
| CN108732027A (en) * | 2018-08-07 | 2018-11-02 | 常州华厦建设工程质量检测有限公司 | A kind of Concrete and reinforced concrete drainage and sewer pipes internal pressure loading test device |
| CN109548634A (en) * | 2018-12-31 | 2019-04-02 | 宁波工程学院 | A kind of intelligent irrigation method based on LABVIEW |
| CN109580340A (en) * | 2019-01-23 | 2019-04-05 | 浙江青山钢管有限公司 | A kind of more steel pipe hydrostatic testers |
| CN110567642A (en) * | 2019-10-09 | 2019-12-13 | 张景仁 | Circular tube sealing testing device for chemical pipeline laying |
| CN110987598A (en) * | 2019-11-05 | 2020-04-10 | 深圳嘉力达节能科技有限公司 | Water pressure testing frame |
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| CN112033618A (en) * | 2020-09-22 | 2020-12-04 | 衡阳市畅通管业有限公司 | Air tightness detection device for cement culvert pipe production and use method thereof |
| CN114645555A (en) * | 2022-03-03 | 2022-06-21 | 陈建国 | Water injection sealing test equipment for sound test pipe of cast-in-place pile for building |
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| CN105300805A (en) * | 2015-11-26 | 2016-02-03 | 斯耐特(湖北)工业制造有限公司 | Ultrahigh hydraulic test table for valves |
| CN105372015A (en) * | 2015-12-16 | 2016-03-02 | 芜湖杰诺科技有限公司 | Ridge type valve airtight testing device |
| CN106197893A (en) * | 2016-08-22 | 2016-12-07 | 昆山杰士德精密工业有限公司 | Mobile phone sealing ring air tightness detection equipment |
| CN106197893B (en) * | 2016-08-22 | 2018-05-29 | 江苏杰士德精密工业有限公司 | Mobile phone sealing ring air tightness detection equipment |
| CN107727320A (en) * | 2017-10-27 | 2018-02-23 | 芜湖鸣人热能设备有限公司 | Heat energy pipe air-tightness detection device |
| CN108195527A (en) * | 2018-01-02 | 2018-06-22 | 浙江大学 | Used in nuclear power station high density polyethylene pipe tightness is tested and evaluation method |
| CN108195527B (en) * | 2018-01-02 | 2019-08-30 | 浙江大学 | Used in nuclear power station high density polyethylene pipe tightness test method |
| CN108645581A (en) * | 2018-05-08 | 2018-10-12 | 西南交通大学 | A kind of dynamic stiffness test experiments equipment |
| CN108507728A (en) * | 2018-06-05 | 2018-09-07 | 陕西博菲特流体控制装备制造有限公司 | A kind of modular heat trace integrated station suppresses test device |
| CN108507728B (en) * | 2018-06-05 | 2024-04-16 | 陕西博菲特流体控制装备制造有限公司 | Modularized heat tracing integration station pressurizing testing device |
| CN108663264A (en) * | 2018-06-25 | 2018-10-16 | 郑州市第建筑工程集团有限公司 | Pipe of concrete internal water pressure detection device |
| CN108663264B (en) * | 2018-06-25 | 2024-02-09 | 郑州市第一建筑工程集团有限公司 | Device for detecting water pressure in concrete pipe |
| CN108732027A (en) * | 2018-08-07 | 2018-11-02 | 常州华厦建设工程质量检测有限公司 | A kind of Concrete and reinforced concrete drainage and sewer pipes internal pressure loading test device |
| CN109548634A (en) * | 2018-12-31 | 2019-04-02 | 宁波工程学院 | A kind of intelligent irrigation method based on LABVIEW |
| CN109580340A (en) * | 2019-01-23 | 2019-04-05 | 浙江青山钢管有限公司 | A kind of more steel pipe hydrostatic testers |
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| CN110987598A (en) * | 2019-11-05 | 2020-04-10 | 深圳嘉力达节能科技有限公司 | Water pressure testing frame |
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Application publication date: 20140730 |