CN206074363U - A kind of special water-pressure sealed tester of tail seal grease of shield - Google Patents
A kind of special water-pressure sealed tester of tail seal grease of shield Download PDFInfo
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- CN206074363U CN206074363U CN201621127737.0U CN201621127737U CN206074363U CN 206074363 U CN206074363 U CN 206074363U CN 201621127737 U CN201621127737 U CN 201621127737U CN 206074363 U CN206074363 U CN 206074363U
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Abstract
The utility model discloses a kind of special water-pressure sealed tester of tail seal grease of shield, including water tank, water-pressure sealed test bucket, hydraulic cylinder one, hydraulic cylinder two, the plunger shaft and rod end chamber of hydraulic cylinder one is connected with hydraulic power and control system respectively, the piston rod of hydraulic cylinder one is connected by adapter sleeve with the piston rod of hydraulic cylinder two, the plunger shaft of hydraulic cylinder two is provided with three interfaces, first interface is connected with water tank, second interface is connected with water-pressure sealed test bucket, 3rd interface is connected with discharging tube, is provided with exhaustor at the top of water-pressure sealed test bucket.First interface is provided with the check valve and stop valve being connected in parallel with the connecting line of water tank.The connecting line that second interface tests bucket with water-pressure sealed is provided with stop valve and pressure gauge.Discharging tube and exhaustor are provided with stop valve.Can under laboratory room temperature, constant pressure (0～10MPa) quantitative test shield tail seal grease of shield sealing resistant to pressure, it is more than laboratory test pressure 4MPa, for testing the sealing property resistant to pressure of tail seal grease of shield, the safety coefficient of its water resistant means of press seals is expanded, and higher guarantee is provided for the construction safety under high hydraulic pressure.
Description
Technical field
This utility model is related to a kind of water-pressure sealed tester, more particularly to a kind of special water-pressure sealed of tail seal grease of shield
Tester.
Background technology
With continuous development, the maturation of domestic Shield Construction Technique, long range, major diameter, great burying, high hydraulic pressure and complexity
The constructing tunnel of section is more and more.Especially in high hydraulic pressure large-diameter shield construction, tail sealing system is more most important.
Because under high hydraulic pressure, tail sealing system once fails, it would be possible to bring the catastrophic effect that cannot be expected, therefore tail sealing
Oils and fatss must reach anti-high hydraulic pressure performance.But the high hydraulic pressure in site operation is generally 0.4～0.65MPa, laboratory test
When, as water resistant pressing detecting device cannot simulate shield machine shield stern construction completely, therefore with reference to the water resistant densification of Japanese Matsui company
Envelope tester test pressure is that 3.5MPa, i.e. safety coefficient are more than 5, it is difficult to provide higher guarantor for the construction safety under high hydraulic pressure
Barrier.
At present, the Technical specifications of tail seal grease of shield are there is no both at home and abroad, the property of different brands product on domestic market
Can index disunity.The especially Key Performance Indicator of tail seal grease of shield --- sealing resistant to pressure, both at home and abroad without unified
Instrument and evaluation criterion are characterized, causes tail seal grease of shield quality in the market very different.
The content of the invention
The purpose of this utility model is to provide a kind of experiment bucket convenient disassembly, feed simple, easy to use tail sealing
The special water-pressure sealed tester of oils and fatss.
The purpose of this utility model is achieved through the following technical solutions：
The special water-pressure sealed tester of tail seal grease of shield of the present utility model, including water tank, water-pressure sealed test bucket, liquid
Cylinder pressure one, hydraulic cylinder two, the plunger shaft and rod end chamber of the hydraulic cylinder one are connected with hydraulic power and control system respectively, institute
The piston rod for stating hydraulic cylinder one is connected by adapter sleeve with the piston rod of the hydraulic cylinder two, and the plunger shaft of the hydraulic cylinder two sets
There are three interfaces, first interface is connected with the water tank, second interface is connected with water-pressure sealed test bucket, the 3rd
Interface is connected with discharging tube, is provided with exhaustor at the top of the water-pressure sealed test bucket.
The technical scheme provided by above-mentioned this utility model can be seen that the tail sealing of this utility model embodiment offer
The special water-pressure sealed tester of oils and fatss, experiment bucket convenient disassembly, feed it is simple, easy to use, can realize laboratory high pressure 4～
The water-pressure sealed test of 10MPa, can accurately test its sealing resistant to pressure.
Description of the drawings
Structural representations of the Fig. 1 for the special water-pressure sealed tester of tail seal grease of shield that this utility model embodiment is provided
Figure.
In Fig. 1：
1- water tanks, 2- stop valves one, 3- check valves, 4- stop valves two, 5- pressure gauges, 6- stop valves three, 7- water-pressure sealeds
Test bucket, 8- hydraulic cylinders one, 9- adapter sleeves, 10- hydraulic cylinders two, 11- stop valves four, 12- hydraulic powers and control system.
Specific embodiment
This utility model embodiment will be described in further detail below.
The special water-pressure sealed tester of tail seal grease of shield of the present utility model, its preferably specific embodiment is：
Including water tank, water-pressure sealed test bucket, hydraulic cylinder one, hydraulic cylinder two, the plunger shaft and piston of the hydraulic cylinder one
Rod cavity is connected with hydraulic power and control system respectively, and the piston rod of the hydraulic cylinder one is led to the piston rod of the hydraulic cylinder two
Adapter sleeve connection is crossed, the plunger shaft of the hydraulic cylinder two is provided with three interfaces, and first interface is connected with the water tank, second
Interface is connected with water-pressure sealed test bucket, and the 3rd interface is connected with discharging tube, and the water-pressure sealed tests the top of bucket
It is provided with exhaustor.
First interface is provided with the check valve and stop valve one being connected in parallel with the connecting line of the water tank.
The connecting line that second interface tests bucket with the water-pressure sealed is provided with stop valve two and pressure gauge.
The discharging tube is provided with stop valve four, and the exhaustor is provided with stop valve three.
The special water-pressure sealed tester of tail seal grease of shield of the present utility model, laboratory room temperature, constant pressure (0～
Under 10MPa), quantitative test shield tail seal grease of shield sealing resistant to pressure, more than laboratory test pressure 4MPa, i.e., safe
Coefficient is more than 6, for testing the sealing property resistant to pressure of tail seal grease of shield, so as to further expand its water resistant means of press seals
Safety coefficient, provides higher guarantee for the construction safety under high hydraulic pressure.There is domestic tail seal grease of shield unified resistant to pressure
Sealing sign equipment and evaluation criterion.
The experiment bucket convenient disassembly of water-pressure sealed tester of the present utility model, charging are simple, easy to use, can realize real
The water-pressure sealed test of room 4～10MPa of high pressure is tested, its sealing resistant to pressure can be accurately tested.The instrument passes through assembled hydraulic cylinder
Pattern of pressure, can in precise control experiment bucket tail seal grease of shield pressure value, especially under 4～10MPa of high pressure, it is ensured that
Material bearing pressure value fluctuates in the range of ± 0.1MPa, realizes accurate survey of the tail seal grease of shield in the anti-high hydraulic pressure of laboratory
Examination.
Specific embodiment：
As shown in figure 1, including hydraulic power and control system, water tank, stop valve, check valve, water-pressure sealed test bucket, liquid
Cylinder pressure, pressure gauge and pipeline etc..
Test water of the described water tank with dress uniform temperature.
Described stop valve two, four is used as the opening and closing in water route.
Described check valve is used for the direction for controlling current.
The hydraulic pressure that described pressure gauge is used in accurate test water-pressure sealed test bucket.
Described stop valve three is used as aerofluxuss use, and described stop valve four is used as the use that discharges water, and is used for draining when test is closed.
Described water-pressure sealed test bucket, is metal cylinder bucket, and bottom of the barrel arranges draining aperture.
Described hydraulic cylinder one is power hydraulic cylinder, and described hydraulic cylinder two is press cylinder.
The principle of specific embodiment is：
As shown in figure 1, before test：
Stop valve 24 and stop valve 4 11 are closed, stop valve 1 and stop valve 36 is opened, in water tank 1, adds test to use
Water (sea water), starts hydraulic power unit, and the piston rod of hydraulic cylinder 1 is pushed into left side, and hydraulic cylinder 1 is by connecting 9 cuff hydrodynamics
To left side, now, the test water in water tank 1 enters the pressurizing chamber (plunger shaft) and water of hydraulic cylinder 2 10 to the piston rod of cylinder pressure 2 10
In densification testing sealing bucket 7, meanwhile, gas is discharged by stop valve 36, when test water is flowed out from stop valve 36, closes stop valve
36 and stop valve 1.
In process of the test：
By hydraulic power and the reversal valve of control system 12, the piston rod pushing direction of hydraulic cylinder 1 is changed, piston is made
Bar is promoted to the right, gives test water pressurization by adapter sleeve 9 and hydraulic cylinder 2 10, when water pressure reaches setting pressure, hydraulic pump
Stopping of standing is pressurizeed, and hydraulic system carries out pressurize, starts simultaneously at and do leakage test resistant to pressure.
After test：
Hydraulic power unit power is closed, stop valve 2,4,6,11 is opened, the test water in pilot system is bled off, has been tested
Finish.
Water-pressure sealed method of testing includes step：
1st, preparation
(1) test water is added in water tank.
(2) wire netting of three layers of certain mesh number is put into into water-pressure sealed test bottom of the barrel and is paved.
(3) a certain amount of tail seal grease of shield is weighed, it is in adding it to water-pressure sealed test bucket and floating, then by hydraulic pressure
Cover bolt fixing seal on leakage test bucket.
2nd, experimental test
(1) stop valve one, stop valve two and stop valve three are opened, in water tank test water by the road with hydraulic cylinder two
Rodless cavity flows into water-pressure sealed test bucket, while discharging the air in test system resistant to pressure.After water is filled, by stop valve
First, stop valve two and stop valve three are closed.
(2) start main switch, the pressure of hydraulic power and control system is adjusted to after 4MPa, start-up loading pressurization, stopwatch
Start timing, whether observation water-pressure sealed test bottom of the barrel has oils and fatss or water to ooze out, and pressurize 60min connects what is oozed out with filter paper
The mixture of oils and fatss and water, is weighed as m1；Then the mixture of filter paper, oils and fatss and water is put in baking oven together, baking oven is arranged
Temperature is 60 DEG C, and after 5 hours, taking-up is weighed as m2.M1-m2 is tail seal grease of shield water percolating capacity hourly under 4MPa,
Density according to water is 1g/mL, can calculate the volume of fugitive water.
(3) test is cut off the electricity supply after terminating, and takes out the tail seal grease of shield in water-pressure sealed test bucket, is stained with butter with hairbrush
Metal cylinder bucket inwall is coated butter, in case getting rusty, the wire netting of certain mesh number is taken out, is dried, treat next use.
(4) with reference to the evaluation of domestic and international sealing resistant to pressure, when water leakage is not more than 3mL, illustrate shield tail sealing
The sealing resistant to pressure of oils and fatss is good, is used especially in actual high hydraulic pressure (0.4～0.65MPa) shield-tunneling construction.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
This is confined to, any those familiar with the art can be readily occurred in the technical scope that this utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by the protection domain of claims.
Claims (4)
1. the special water-pressure sealed tester of a kind of tail seal grease of shield, it is characterised in that including water tank, water-pressure sealed test bucket,
Hydraulic cylinder one, hydraulic cylinder two, the plunger shaft and rod end chamber of the hydraulic cylinder one are connected with hydraulic power and control system respectively,
The piston rod of the hydraulic cylinder one is connected by adapter sleeve with the piston rod of the hydraulic cylinder two, the plunger shaft of the hydraulic cylinder two
Three interfaces are provided with, first interface is connected with the water tank, second interface is connected with water-pressure sealed test bucket, the 3rd
Individual interface is connected with discharging tube, is provided with exhaustor at the top of the water-pressure sealed test bucket.
2. the special water-pressure sealed tester of tail seal grease of shield according to claim 1, it is characterised in that described first
Interface is provided with the check valve and stop valve one being connected in parallel with the connecting line of the water tank.
3. the special water-pressure sealed tester of tail seal grease of shield according to claim 2, it is characterised in that described second
The connecting line that interface tests bucket with the water-pressure sealed is provided with stop valve two and pressure gauge.
4. the special water-pressure sealed tester of tail seal grease of shield according to claim 1,2 or 3, it is characterised in that described
Discharging tube is provided with stop valve four, and the exhaustor is provided with stop valve three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621127737.0U CN206074363U (en) | 2016-10-17 | 2016-10-17 | A kind of special water-pressure sealed tester of tail seal grease of shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621127737.0U CN206074363U (en) | 2016-10-17 | 2016-10-17 | A kind of special water-pressure sealed tester of tail seal grease of shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206074363U true CN206074363U (en) | 2017-04-05 |
Family
ID=58442568
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621127737.0U Active CN206074363U (en) | 2016-10-17 | 2016-10-17 | A kind of special water-pressure sealed tester of tail seal grease of shield |
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| CN (1) | CN206074363U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060545A (en) * | 2018-08-24 | 2018-12-21 | 北京交通大学 | The Water Pressure Resistance device for dynamically detecting of tail seal grease of shield |
| CN109883616A (en) * | 2019-03-28 | 2019-06-14 | 中国石油化工股份有限公司 | A kind of shield grease special measuring of resistance to water tightness instrument and test method |
-
2016
- 2016-10-17 CN CN201621127737.0U patent/CN206074363U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060545A (en) * | 2018-08-24 | 2018-12-21 | 北京交通大学 | The Water Pressure Resistance device for dynamically detecting of tail seal grease of shield |
| CN109883616A (en) * | 2019-03-28 | 2019-06-14 | 中国石油化工股份有限公司 | A kind of shield grease special measuring of resistance to water tightness instrument and test method |
| CN109883616B (en) * | 2019-03-28 | 2020-09-22 | 中国石油化工股份有限公司 | Special measuring instrument and testing method for water-resistant sealing performance of shield grease |
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