CN104897384B - A kind of water pressure test system and hydraulic test method for valve body moulding - Google Patents
A kind of water pressure test system and hydraulic test method for valve body moulding Download PDFInfo
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- CN104897384B CN104897384B CN201510285930.0A CN201510285930A CN104897384B CN 104897384 B CN104897384 B CN 104897384B CN 201510285930 A CN201510285930 A CN 201510285930A CN 104897384 B CN104897384 B CN 104897384B
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Abstract
The present invention relates to a kind of water pressure test system and hydraulic test method for valve body moulding,Wherein,Water pressure test system for valve body moulding,Including the support for supporting installation valve body moulding,Each valve port of the valve body moulding is connected by closure plate sealing device respectively,The closure plate sealing device is provided with inlet and liquid outlet,The inlet of the closure plate sealing device is connected by high-voltage tube one with high pressure pump outlet end,The port of export of the high-pressure pump is connected with two-bit triplet magnetic valve,The two-bit triplet magnetic valve includes first interface,Second interface and the 3rd interface,The first interface is connected with high pressure pump outlet end,Second interface is connected with high-voltage tube one,The entrance point of the high-pressure pump is connected by water inlet pipe with storage tank,3rd interface of the two-bit triplet magnetic valve is connected by water return pipeline with storage tank,The liquid outlet is connected by high-voltage tube two with storage tank,Switch valve is respectively equipped with the high-voltage tube being connected with the inlet and liquid outlet.
Description
Technical field
The present invention relates to the pressure sensing technologies of valve body moulding, more particularly to a kind of water pressure test system of large valve body casting
System and hydraulic test method.
Background technology
With the development of equipment manufacturing technology, customer to the performance requirement more and more higher of large valve body casting, sealing and
Voltage endurance capability is very important two performance indications of valve body moulding.For this two performances, existing detection means generally compares
Simpler and cruder, equipment voltage endurance capability is low, complex operation, and culvert system also imperfection, water resource waste is serious, working site environment
Difference, and initiation accident is easy to during suppressing.
The content of the invention
The present invention is for the deficiency of large valve body casting sealing and voltage endurance capability test method in the prior art, there is provided one
Water pressure test system of the kind for valve body moulding, in order to realize the valve body moulding water pressure test of specific structure, improve experiment system
The security reliability of system, and save test water resource.
The object of the present invention is achieved like this, a kind of water pressure test system for valve body moulding, including for supporting
The support of valve body moulding is installed, each valve port of the valve body moulding is connected by closure plate sealing device respectively, the closure plate sealing
Device is provided with inlet and liquid outlet, and the inlet of the closure plate sealing device is connected by high-voltage tube one and high pressure pump outlet end
Connect, the port of export of the high-pressure pump is connected with two-bit triplet magnetic valve, and the two-bit triplet magnetic valve includes first interface, second
Interface and the 3rd interface, the first interface are connected with high pressure pump outlet end, and second interface is connected with high-voltage tube one, the high pressure
The entrance point of pump is connected by water inlet pipe with storage tank, the 3rd interface of the two-bit triplet magnetic valve by water return pipeline with
Storage tank is connected, and the liquid outlet is connected by high-voltage tube two with storage tank, the high pressure being connected with the inlet and liquid outlet
Switch valve is respectively equipped with pipe.
The water pressure test system of the valve body moulding of the present invention, the inlet of valve body moulding pass through two-bit triplet electricity through switch valve
The interface one and interface two of magnet valve connect with high-pressure pump realizes water filling and pressurization function, and the inlet of valve body moulding leads to through switch valve
Cross two-bit triplet solenoid valve interface two and interface three connects with storage tank and pressure release water return function can be achieved, only need to control during experiment
The unlatching of high-pressure pump processed and the communication direction of two-bit triplet magnetic valve can easily realize the water filling during the water pressure test, add
Pressure, pressure release and water return function, operating process is simple, and test water pressure can recycle through storage tank, not only saving water resource,
But also good experimental enviroment can be ensured.
For ease of realizing the sealing of upper valve port, the valve body moulding is three face triple-valve body casting and is respectively equipped with upper valve
Mouthful, lower valve port and side valve mouth, be equipped with interior step in each valve port, the closure plate sealing device include upper plugging plate sealing device, under
Closure plate sealing device and side stopboard sealing device, the upper plugging plate sealing device include being sealed against on the downside of the intraoral step of upper valve
Upper plugging plate, strain component, the sealing surface that the upper plugging plate coordinates with interior step are provided between the upper plugging plate and upper valve port outer end
Seal groove and sealing strip are provided with, the liquid outlet is arranged on upper plugging plate, and pressure detecting mouth is additionally provided with the upper plugging plate；Institute
To state upper plugging plate outer periphery both sides and be cut into facing directly of being parallel to each other, the upper diametric side wall of valve port cuts with fluting respectively,
The groove width is more than the thickness of upper plugging plate, and the distance of two fluting opposite flanks is more than the distance that upper plugging plate periphery two is faced directly.
The upper plugging plate sealing device of the present invention, in that context it may be convenient to the sealing of valve port in realization, for ease of upper plugging plate is smoothly loaded into upper valve
It is intraoral, upper valve port side wall is slotted, and upper plugging plate periphery is cut off into an arch portion, and to reduce upper plugging plate smallest radial size, peace
Upper plugging plate can smoothly be loaded during dress in valve body moulding at fluting along this smallest radial size, then by upper plugging plate in valve body
Putting down to turn 90 degrees in casting makes the radial direction minimum dimension of upper plugging plate stagger with fluting direction, neither influences to go up the sealing of valve port, also just
Installed in upper plugging plate.The valve port that the upper plugging plate sealing device of the present invention is particularly suitable for the maximum caliber in the valve port of different bores is close
In seal structure.
For ease of being fixedly connected for upper plugging plate, the strain component be along upper plugging plate and upper valve port circumferentially uniform three with
On right angle arm-tie and bolt for tensing right angle arm-tie.
For ease of the sealed connection of lower valve port and lower plugging plate, the lower plugging plate sealing device includes being sealed against in lower valve port
Lower plugging plate on the upside of interior step, seal groove and sealing strip are also provided between the interior step surface of the lower plugging plate and lower valve port, it is described
Lower valve port lower surface is provided with arm-tie, is strained and fixed between the arm-tie and lower plugging plate by bolt, the inlet is arranged on down
On closure plate.The lower plugging plate sealing device of the present invention, when suitable valve body moulding has bore difference, the closure plate for sealing less valve port is close
In seal apparatus, when closure plate is installed, closure plate can be put into valve pocket to be aligned again from the valve ports of other larger calibers and be adjusted to corresponding
Valve port in tension is fixed at step surface.Similarly, the close device of the side stopboard of valve body moulding of the invention can also use class
Like the structure of lower plugging plate sealing device.
It is a further object to provide a kind of method that the water pressure test is carried out using above-mentioned water pressure test system, bag
Include following process
1）System is installed：Valve body moulding is steadily rack-mount, each valve port is tightly connected with closure plate sealing device,
High-voltage tube one will be reconnected after the connecting valve valve of inlet end, high-voltage tube one is connected with the interface two of two-bit triplet magnetic valve,
The interface one of the two-bit triplet magnetic valve is connected with the outlet of high-pressure pump, and the interface three of the two-bit triplet magnetic valve is by returning
Water lines are connected with storage tank, and the liquid outlet of the closure plate sealing device connects storage tank through another switch valve and high-voltage tube two,
The entrance point of high-pressure pump is connected by water inlet pipe with storage tank, the pressure detecting mouth connects pressure gauge；
2）Enough water is first injected into storage tank, opens high-pressure pump, the switch valve that will be connected with inlet and liquid outlet
Open, the interface one of two-bit triplet magnetic valve is connected with interface two, water under high pressure is squeezed into casting valve body, works as outlet end
When there are flowing out, show that water has filled in casting valve body, now close two switch valves and high-pressure pump, check three valve ports with it is each
From closure plate sealing device connecting portion No leakage after, then open the switch valve being connected with inlet and open high-pressure pump, make
Pressure in casting valve body slowly rises, observe pressure gauge pressure value reach switch valve that inlet end is closed after arranges value and
High-pressure pump, and pressurize setting time, ne-leakage or without pressure release after, the interface two of two-bit triplet magnetic valve and interface three are connected
It is logical, then the switch valve being connected with inlet is opened, by the water in casting valve body through high-voltage tube one, two-bit triplet magnetic valve and backwater
Pipeline puts back to storage tank, completes the water pressure test of a casting valve body.
In the hydraulic test method of the valve body moulding of the present invention, pilot system connects the rear unlatching that need to only control high-pressure pump
The water filling during the water pressure test, pressurization, pressure release and backwater can be easily realized with the communication direction of two-bit triplet magnetic valve
Function, operating process is simple, and test water pressure can recycle through storage tank, not only saving water resource, but also can protect
Demonstrate,prove good experimental enviroment.
As the preferred scheme of the test method of the present invention, the step 2）The pressure value of middle pressurize is 20MPa, during pressurize
Between be 30min.
To prevent after the water pressure test in casting residual water to get rusty or corroding, the step 2）Add in water in middle storage tank
Added with antirust agent, the mass ratio of the antirust agent addition is 1%.
Brief description of the drawings
Fig. 1 is the connection diagram of the water pressure test system for valve body moulding of the present invention.
Fig. 2 is the structural representation of upper plugging plate sealing device.
Fig. 3 is Fig. 2 top view.
Fig. 4 is the structural representation of lower plugging plate sealing device.
Fig. 5 is the structural representation of side stopboard sealing device.
Wherein, 1 valve body moulding；1A slots；2 switch valves one；3 upper plugging plate sealing devices；301 upper plugging plates；Draw at 302 right angles
Plate；303 turnbuckles；304 lifting screws；305 seal grooves；306 sealing strips；4 side stopboard sealing devices；401 side stopboards；5 is high
Pressure pipe two；6 storage tanks；7 water inlet pipes；8 return pipes；9 two-bit triplet magnetic valves；10 high-pressure pumps；11 high-voltage tubes one；12 supports；13
Switch valve two；14 lower plugging plate sealing devices；14A lower plugging plates；14B arm-ties；14C bolts；15 inlets；16 liquid outlets；17 pressure
Detection mouth.
Embodiment
It is as shown in Figures 1 to 5 the water pressure test system for valve body moulding of the present invention, including installed for supporting
The support 12 of valve body moulding 1, each valve port of valve body moulding 1 are connected by closure plate sealing device, set on closure plate sealing device respectively
There are inlet 15 and liquid outlet 16, the inlet 15 of closure plate sealing device is connected by high-voltage tube 1 and the port of export of high-pressure pump 10
Connect, the port of export of high-pressure pump 10 is connected with two-bit triplet magnetic valve 9, and two-bit triplet magnetic valve 9 includes first interface, second interface
With the 3rd interface, first interface is connected with the port of export of high-pressure pump 10, and second interface is connected with high-voltage tube 1, and high-pressure pump 10 enters
Mouth end is connected by water inlet pipe 7 with storage tank 6, and the 3rd interface of two-bit triplet magnetic valve 9 is connected by return pipe 8 and storage tank 6
Connect, liquid outlet 16 is connected by high-voltage tube 25 with storage tank 6, on the high-voltage tube being connected with the inlet 15 and liquid outlet 16
It is respectively equipped with switch valve 1 and switch valve 2 13.
For ease of realizing the sealing of upper valve port, valve body moulding 1 be three face triple-valve body casting and be respectively equipped with valve port, under
Valve port and side valve mouth, interior step is equipped with each valve port, closure plate sealing device includes upper plugging plate sealing device 3, lower plugging plate seals
Device 14 and side stopboard sealing device 4, upper plugging plate sealing device 3 include being sealed against the upper plugging plate on the downside of the intraoral step of upper valve
301, strain component is provided between upper plugging plate 301 and upper valve port outer end, the strain component is circumferential along upper plugging plate 301 and upper valve port
The uniform right angle arm-tie 302 of more than three and the turnbuckle 303 for tensing right angle arm-tie 302；Upper plugging plate 301 with interior
The sealing surface that rank coordinates is provided with seal groove 305 and sealing strip 306, and the seal groove 305 and the structure setting of sealing strip 306 are upper stifled
Plate 301 and the intraoral step of upper valve against upper surface on；Liquid outlet 16 is arranged on upper plugging plate 301, is additionally provided with upper plugging plate 301
Pressure detecting mouth 17；For ease of upper plugging plate 301 is loaded, upper valve is intraoral, and the outer periphery both sides of upper plugging plate 301 are cut into is parallel to each other
Face directly, the upper diametric side wall of valve port cuts with fluting 1A respectively, and fluting 1A width is more than the thickness of upper plugging plate 301, and two open
The distance of groove opposite flank is more than the distance that the periphery two of upper plugging plate 301 is faced directly.The upper plugging plate sealing device of the present invention, can facilitate
Realization on valve port sealing, it is intraoral for ease of upper plugging plate 301 smoothly to be loaded to upper valve, upper valve port side wall is slotted, and will be upper
Closure plate periphery cuts off an arch portion, can will along this smallest radial size to reduce the smallest radial size of upper plugging plate 301, during installation
It is intraoral that upper plugging plate 301 smoothly loads upper valve at fluting, and then putting down to turn 90 degrees in valve body moulding by upper plugging plate 301 makes upper plugging plate
301 radial direction minimum dimension staggers with fluting 1A directions, neither influences the sealing of upper valve port, also allows for upper plugging plate 301 and install.This
The upper plugging plate sealing device of invention is particularly suitable in the valve port sealing structure of the maximum caliber in the valve port of different bores.
For ease of lower valve port and sealed connection, lower plugging plate sealing device 14 include be sealed against in lower valve port on step
Seal groove and sealing strip, lower valve port lower end are also provided between the lower plugging plate 14A of side, lower plugging plate 14A and the interior step surface of lower valve port
Face is provided with arm-tie 14B, is strained and fixed between arm-tie 14B and lower plugging plate 14A by bolt 14C, inlet 15 is arranged on lower plugging plate
On 14A.The lower plugging plate sealing device of the present invention, when suitable valve body moulding has bore difference, the closure plate for sealing less valve port is close
In seal apparatus, when closure plate is installed, closure plate can be put into valve pocket to be aligned again from the valve ports of other larger calibers and be adjusted to corresponding
Valve port in tension is fixed at step surface.Similarly, the close device 4 of the side stopboard of valve body moulding of the invention can also use class
Like the structure of lower plugging plate sealing device 3, as shown in figure 5, including side stopboard 401, side stopboard 401 is provided with seal groove and sealing
Bar, the side stopboard 401 are strained and fixed by an arm-tie and bolt with valve port.
The method of the water pressure test is carried out using the water pressure test system of the upper valve body casting of the present invention includes following process：
1）System is installed：Valve body moulding 1 is steadily arranged on support 12, each valve port is sealed with closure plate sealing device and connected
Connect, high-voltage tube 1 will be reconnected after the connecting valve valve 2 13 of inlet 15, by high-voltage tube 1 and two-bit triplet magnetic valve 9
Interface two is connected, then the interface one of two-bit triplet magnetic valve 9 is connected with the outlet of high-pressure pump 10, two-bit triplet magnetic valve 9
Interface three is connected by water return pipeline 8 with storage tank 6, and liquid outlet 16 is connected into storage tank through switch valve 1 and high-voltage tube 25
6, the entrance point of high-pressure pump 10 is connected by water inlet pipe 7 with storage tank 6, pressure detecting mouth 17 is finally connected into pressure gauge；
2）Enough water is first injected into storage tank 6, and Xiang Shuizhong is added with antirust agent, the mass ratio of antirust agent addition
For 1%；High-pressure pump 10 is opened, the switch valve 1 and switch valve 2 13 that are connected with inlet 15 and liquid outlet 16 are opened, will
The interface one of two-bit triplet magnetic valve 9 is connected with interface two, and water under high pressure is squeezed into casting valve body 1, when there is water at the end of liquid outlet 16
During outflow, show that water has filled in casting valve body, now closing switch valve 1, switch valve 2 13 and high-pressure pump 10, check three
After the connecting portion No leakage of valve port and respective closure plate sealing device, then open the switch valve 2 13 being connected with inlet 15 simultaneously
Open high-pressure pump 10, the pressure in casting valve body 1 is slowly increased, observe pressure gauge pressure value reach close after 20MPa into
The switch valve 1 and high-pressure pump 10 at liquid mouth end, and the min of pressurize 30, ne-leakage or without pressure release after, by two-bit triplet magnetic valve 9
Interface two and interface tee joint, then the switch valve 1 being connected with inlet is opened, by the water in casting valve body 1 through high-voltage tube
One 11, two-bit triplet magnetic valve 9 and return pipe 8 put back to storage tank 6, complete the water pressure test of a casting valve body.
In the hydraulic test method of the valve body moulding of the present invention, pilot system, which connects rear, need to control opening for high-pressure pump 10
Water filling during the water pressure test can easily be realized with the communication direction of two-bit triplet magnetic valve 9 by opening, and pressurization, pressure release and be returned
Water function, operating process is simple, and test water pressure can recycle through storage tank, not only saving water resource, but also can be with
Ensure good experimental enviroment.
Claims (3)
1. a kind of water pressure test system for valve body moulding, including for supporting the support of installation valve body moulding, the valve body
Each valve port of casting is connected by closure plate sealing device respectively, and the closure plate sealing device is provided with inlet and liquid outlet, institute
The inlet for stating closure plate sealing device is connected by high-voltage tube one with high pressure pump outlet end, and the port of export of the high-pressure pump is connected with
Two-bit triplet magnetic valve, the two-bit triplet magnetic valve include first interface, second interface and the 3rd interface, the first interface
It is connected with high pressure pump outlet end, second interface is connected with high-voltage tube one, and the entrance point of the high-pressure pump passes through water inlet pipe and water storage
Case is connected, and the 3rd interface of the two-bit triplet magnetic valve is connected by water return pipeline with storage tank, and the liquid outlet passes through height
Pressure pipe two is connected with storage tank, and switch valve is respectively equipped with the high-voltage tube being connected with the inlet and liquid outlet；The valve body
Casting is three face triple-valve body casting and is respectively equipped with valve port, lower valve port and side valve mouth, it is characterised in that is all provided with each valve port
There is interior step, the closure plate sealing device includes upper plugging plate sealing device, lower plugging plate sealing device and side stopboard sealing device, institute
Stating upper plugging plate sealing device includes being sealed against upper plugging plate on the downside of the intraoral step of upper valve, the upper plugging plate and upper valve port outer end it
Between be provided with strain component, the sealing surface that the upper plugging plate coordinates with interior step is provided with seal groove and sealing strip, the liquid outlet
It is arranged on upper plugging plate, pressure detecting mouth is additionally provided with the upper plugging plate；It is cut into mutually flat in the upper plugging plate outer periphery both sides
Capable faces directly, and the upper diametric side wall of valve port cuts with fluting respectively, and the groove width is more than the thickness of upper plugging plate, and two
The distance of fluting opposite flank is more than the distance that upper plugging plate periphery two is faced directly.
2. the water pressure test system according to claim 1 for valve body moulding, it is characterised in that the strain component is
Along the circumferentially uniform right angle arm-tie of more than three of upper plugging plate and upper valve port and the bolt for tensing right angle arm-tie.
3. the water pressure test system according to claim 1 for valve body moulding, it is characterised in that the lower plugging plate sealing
Device includes being sealed against in lower valve port lower plugging plate on the upside of step, between the interior step surface of the lower plugging plate and lower valve port
Seal groove and sealing strip, the lower valve port lower surface is set to be provided with arm-tie, tensed between the arm-tie and lower plugging plate by bolt
Fixed, the inlet is arranged on lower plugging plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285930.0A CN104897384B (en) | 2015-05-29 | 2015-05-29 | A kind of water pressure test system and hydraulic test method for valve body moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285930.0A CN104897384B (en) | 2015-05-29 | 2015-05-29 | A kind of water pressure test system and hydraulic test method for valve body moulding |
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| CN104897384A CN104897384A (en) | 2015-09-09 |
| CN104897384B true CN104897384B (en) | 2017-12-22 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092166A (en) * | 2015-09-14 | 2015-11-25 | 福建恒杰塑业新材料有限公司 | Cyclone three-way drainpipe member water and pressure test device |
| CN105973580B (en) * | 2016-05-18 | 2019-03-22 | 德施普科技发展温州有限公司 | Valve experimental provision is let out in a kind of increasing of intelligent synchronization |
| CN106679945B (en) * | 2016-11-10 | 2019-06-07 | 安徽皖拓自动化有限公司 | A kind of pressure-relieving device in valve refractory test |
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| US20080184783A1 (en) * | 2007-02-06 | 2008-08-07 | Jay R. Smith Manufacturing Company | Test tee |
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| CN201378106Y (en) * | 2009-03-06 | 2010-01-06 | 中油吉林化建工程股份有限公司 | Simple regulating valve pressure test bed |
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| CN104897384A (en) | 2015-09-09 |
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